GE Energy
Digital Energy
Automatic Transfer Switch (ATS)
Withstand and Closing Ratings (WCR)
The Purpose of Testing and Unit Ratings
GE automatic transfer
switches (ATS) have been
subjected to an extensive
test program to show that
they comply with and
exceed UL 1008 standards
as well as the various
performance specifications used by most government agencies and
major electrical engineers
throughout the world.
The primary test to assure
the dependability of an
automatic transfer switch is its ability to close into and
withstand high fault currents. The purpose of this publication is to provide basic information on withstand ratings and to document the ratings that GE ATS currently
holds under UL 1008.
NFPA 110 Standard for Emergency and Standby Power
Systems, Section 4-2.2, requires that the capacity and
rating of automatic transfer switches be adequate to
withstand the thermal and electromagnetic effects of
short circuit currents that may arise in the electrical
system. It is important to be able to compare properly
the withstand close rating (WCR) of the switch to the
available short circuit (fault) current of the system
until the protective device clears the fault.
If a transfer switch does not have adequate withstand
capability—system failure, fire, injury to personnel or
equipment damage may result. A clear understanding
of the interrelationship between the protective device,
transfer switch and system needs is necessary for a
well designed installation. Some basic information on
withstand rating terms and calculations follows the
enclosed rating charts.
Underwriters Laboratories (UL) is the independent testing body that has developed the standard UL 1008
which all major transfer switch manufacturers test to.
UL lists products which have successfully passed a
battery of witnessed tests including the withstand and
close into fault tests described herein. Manufacturers
that complete these tests are then permitted to
label their products with the UL mark.
UL made significant changes in April of 1989 regarding
the labeling requirements of transfer switches. Prior
to that date there had been concern over coordination
with some protective devices. UL clarified the labeling
procedure and now allows for three rating categories.
• Current limiting fuse
• Specific class (trip time) of molded case breaker
• “Umbrella” or “Any Breaker” ratings that take
into account all types of molded and insulated
case circuit breakers; these tests are performed
for a duration of 3 cycles on units 225 amps and
greater, and for 1.5 cycles on 40-150 amp units
(with an optional 3 cycle duration for units up
to 150 amps; note the three cycle rating on 150
amp and below units is optional as UL has determined that all breakers in this size clear in less
than 1.5 cycles). The “Umbrella” or “Any Breaker”
rating is therefore the actual UL requirement and
definition of the ATS industry 3 cycle (or 1.5 as
noted) withstand and closing rating, and should
not to be confused with additional, non UL 1008
labeled “withstand only” tests.
TB-11102
Page
• TB-(2/11
1102)
Zenith Product Ratings
The GE family of
transfer switches
have maintained
an industryleading role in
ratings from the
time of its introduction. Today
all ZTS and ZTE
products are
labeled with an
“umbrella” (any
molded case
breaker) rating as well as some higher
specific breaker levels giving the consultant
a free hand with system design. The
following pages include the UL certified
ratings and specific breaker coordination
charts, withstand rating data and additional specific information.
The consulting engineer must keep in
mind that unless a transfer switch bears
an umbrella breaker approval for use
with any molded case breaker, care must
be taken to assure that the breaker
specified for the installation have an
equal or shorter trip time when compared
to the listed devices. This would limit the
application of the switch to projects within
the scope of its specific breaker listing.
In addition to this factor, many transfer
switch manufacturers perform additional
withstand tests on selected products.
These additional tests may be either
for a higher current valve or a longer
duration than their standard UL listed
ratings. The consultant must determine
the applicability of these tests and take
careful note of the fact that these levels
are normally not UL labeled ratings.
TB-1102 • Page 2
The ZTS/ZTG/ZTE Switch Families
• ZTS/ZTE
Automatic Transfer Switches
40 - 4000 amps
• ZTG
Automatic Transfer Switches
40 - 3000 amps
• ZTSD/ZTED
Delayed Transition Switches
40 - 4000 amps
• ZTGD
Delayed Transition Switches
40 - 3000 amps
• ZTSCT/ZTECT
Closed Transition Switches
100 - 4000 amps
• ZTGSE/ZTGDSE
Standard & Delayed Service
Entrance Rated Switches
40 - 3000 amps
• ZBTS/ZBTE
Transfer/Bypass Switches
100 - 4000 amps
• ZBTSD/ZBTED
Delayed Transfer/
Bypass Switches
100 - 4000 amps
• ZBTSCT/ZBTECT
Closed Transition Transfer/
Bypass Switches
100 - 4000 amps
• ZTX
Automatic Transfer Switches
40 - 400 amps
UL Letter
Page 3 • TB-1102
Definitions & Calculations
Purpose
Test Documents
Many questions arise when comparing WCR to the system fault
current rating. Too often a switch is rated by a manufacturer in
one set of WCR terms and the available system fault currents
described with a different set of terms. The purpose of this paper
is to outline the different ways switches may be rated (WCR) and
systems are measured.
As fault currents can occur at any level, a transfer switch must
be capable of withstanding any fault current up to its maximum
rating. This rating is based on the rating of the protective device
in front of the unit and must be considered on that basis.
Basic Definitions
a.
RMS Current – The Root Mean Square which is the effective
value of an alternating current. It is equal to .707 of the
peak current for a sine wave. This is the value referred to
when people say “current.”
b.
Peak Current – The instantaneous maximum value of current—
the peak current of a sine wave is 1.414 times its RMS value.
c.
Symmetrical Current – The alternating current which is symmetrical around the zero axis of the sine wave.
d.
Asymmetrical Current – The alternating current which is not
symmetrical around the zero axis.
e.
Peak Fault Current – The instantaneous maximum current
value that occurs after the start of a fault in any phase.
f.
Available Peak Current – Maximum possible short circuit
current that may exist in a system without protective devices.
g.
Peak Let Through Current – Maximum instantaneous current
through the protective device during the total clearing time.
h.
Withstand Current Rating – The rating that defines the ability of
the switch to withstand the thermal and electromagnetic
effects of short circuit currents for a set period of time.
i.
Withstand and Closing Rating (WCR) – UL 1008 test for a
transfer switch’s ability to close into and withstand a fault
current. These are the ratings which will actually appear on
the UL label of the product.
NOTE: For diagrams of typical current wave forms, see Figure 1
and Figure 2.
The following values have all been used to describe identical
circuit conditions:
Available Short Circuit Current RMS
Peak Let Through Current (½ cycle)
Peak Asymmetrical Current
Peak Symmetrical Current
Withstand Rating 3 Cycles RMS
120,000 amps
130,000 amps
156,000 amps
140,000 amps
128,000 amps
What do these numbers mean? They mean that a switch was tested
at 28,000 amps RMS Sym for 3 cycles; the switch also had a projected
peak symmetrical current of 40,000 amps for less than ½ cycle and
a peak asymmetrical current of 56,000 amps for less than ½ cycle.
The switch has been tested in a system that has an available
capacity of 120,000 amps RMS.
How should a manufacturer rate a switch? Preferably by submitting
test data which is reported as outlined by UL 1008 specifications.
This data calls for RMS symmetrical readings based on specific
test parameters. Other figures may be misleading.
TB-1102 • Page 4
Interrupting Ratings
Some manufacturers of circuit breaker type automatic transfer
switches list interrupting current (IC) ratings in lieu of WCR. These
switches will then open on faults instead of withstanding the
fault until the external protective device clears. As the transfer
switch is then used to open the fault current in place of a protective
device—this may leave the transfer switch with both normal and
emergency open which then requires manual resetting of the
breakers within the transfer switch enclosure. The circuit breakers
may require factory inspection after high current interruption in
accordance with common circuit breaker procedures.
WCR ratings, as opposed to IC ratings appear to offer a better
choice to the system designer as he attempts to coordinate the
protection of the entire system. Knowing the maximum amount
and duration of fault current a switch will withstand gives the
designer the information necessary for complete coordinated
system design.
Advantage of RMS Symmetrical Ratings
a.
Date is consistently reported based on UL test procedures.
b.
Where time beyond the first ½ cycle is given suitable
decisions can be made to use circuit breakers or fuses.
c.
Misleading reporting is eliminated.
Blow-On Effects on
Short Circuit Current in Contacts
Comparison of Terms
a.
b.
c.
d.
e.
GE tests show results based on various current values and time
durations, and include additional high current tests with fuses. By
considering this range of values, it is possible to predict performance
with different fuse characteristics or specific circuit breaker currenttime curves with a given available short circuit current.
Some switch designers analyze “blow-on” and “blow-off” effects
and force vectors (due to electromagnetic repulsion) to claim
increased WCR capability of their product. Such calculations are
very rough approximations because of inherent errors in estimating
“domain” size and number, current “pinch” effect and the problem
of complex geometry of actual contact structures when compared
to idealized models. The only proof of a successful design are
tests, uniformly performed and consistently reported all to the
same criterion such as UL 1008.
Definitions & Calculations
Available
Fault Current
Available fault
current information can often be
supplied by the
utility company.
If this information
is not available,
approximate fault
current can be calculated by knowing
the transformer
impedance (usually
2 to 5% of full load
ampere rating of
the transformer).
Figure 1
Symmetrical and Asymmetrical Waves
For a single phase system,
transformer let through
current is: (where Z is
transformer impedance in
percent divided by 100)
kVA (of trans) x 1000
I =
Z x Line Volts
For three phase systems:
kVA x 1000
I =
1.73 Z x Line Volts
Figure 2
Current Limiting Fuse Effects
EXAMPLE:
500 kVA transformer
2.5% Impedance
480 Volts, 3 phase
500 x 1000
1.73 (.025) (480)
=
24,085 amps
This figure is somewhat
lower if a long run
of cable introduces
a substantial volt drop.
Available fault
current determine
the WCR rating that a
transfer must meet.
Page 5 • TB-1102
80
100,000
85,000
65,000
ZTS
ZTS
ZTS2
100,000
85,000
65,000
50,000
ZBTS
ZBTS
ZTS2
F14C
100,000
85,000
65,000
50,000
N/A
50,000
N/A
ZBTS
ZBTS
ZTS2
100,000
85,000
65,000
50,000
N/A
ZBTS
ZBTS
ZTS2
100,000
85,000
65,000
65,000
N/A
65,000
N/A
N/A
50,000
65,000
50,000
N/A
N/A
ZTS
ZTS
ZTS2
F14
F17
ZBTS — E67544, Vol. 1, Sec. 5 (800-1200A), Sec. 8 (1600-3000A), Sec. 9 (4000A)
ZTSCT4 — E23911, Vol. 4, Sec. 19 (100-400A)
ZTS2 — E23911, Vol. 4, Sec. 9 (600-800A)
ZTS — E23911, Vol. 4, Sec. 10 (1000-1200A), Sec. 12 (1600-2000A), Sec. 11 (2600-3000A) Sec. 15 (4000A)
UL References:
N/A
100,000
85,000
65,000
50,000
N/A
35,000
30,000
N/A
30,000
MX150
ZTS
ZTS
ZTS2
F17
N/A
100,000
85,000
65,000
50,000
N/A
50,000
N/A
F14
N/A
50,000
N/A
30,000
MX60
MX150
50,000
ZTX
ZTGD
2600
2000
1600
1200
1000
800
600
400
300
260
225
200
150
100
80
40
4000
ZTS
ZTS
ZTS2
50,000
N/A
50,000
N/A
50,000
N/A
N/A
MX250 & MX350
MX250 & MX350
ZTG
4000
100,000
85,000
65,000
50,000
N/A
F14B
50,000
MX250 & MX350
MX250 & MX350
ZBTSCT & ZBTECT
ZBTSD & ZBTED
WCR Maximum Circuit Amps at 480 VAC
ZBTS & ZBTE
ZTSCT & ZTECT
3000
ZTS
ZTS
ZTS2
F14
50,000
N/A
30,000
MX250 & MX350
ZTSD & ZTED
F14B
3000
2600
2000
1600
1200
1000
800
600
400
300
260
225
200
150
100
F17
MX250 & MX350
Controller >>
40
ZTS & ZTE
ZTSCT4
Product Type >>
ATS Ratings in Amps
UL 1008 Withstand & Closing Ratings (WCR)
F14B/C
TB-1102 • Page 6
Page 7 • TB-1102
50
100
125
200
300
350
600
750
1,000
1,250
1,500
2,000
2,500
4,000
6,000
50
100
125
200
300
350
600
750
1,000
1,250
1,500
2,000
2,500
4,000
6,000
40
80
100
150
225
260
400
600
800
1,000
1,200
1,600
2,000
3,000
4,000
40
80
100
150
225
260
400
600
800
1,000
1,200
1,600
2,000
3,000
4,000
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTS & ZTE
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
ZTSD & ZTED
Maximum
Fuse
Size,
Amps
ZTS & ZTE
UL 1008
ZTS
Switch
Rating
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
Maximum
Circuit Amps at
480 VAC
(UL)
200,000
N/A
N/A
N/A
N/A
N/A
N/A
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
150,000
N/A
N/A
N/A
N/A
N/A
N/A
150,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
Maximum
Circuit Amps at
600 VAC
(CSA)
Current Limiting Fuse
5,000
4,000
2,500
2,500
1,600
1,600
1,200
800
800
800
800
800
800
800
800
5,000
4,000
2,500
2,500
1,600
1,600
1,600
800
800
800
800
400
400
400
400
Maximum
Circuit Breaker
Size, Amps
100,000
100,000
100,000
100,000
85,000
85,000
65,000
65,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
100,000
100,000
100,000
100,000
85,000
85,000
65,000
65,000
50,000
50,000
50,000
30,000
30,000
30,000
30,000
Maximum
Circuit Amps at
480 VAC
(UL)
85,000
85,000
85,000
85,000
65,000
65,000
N/A
50,000
42,000
42,000
42,000
42,000
42,000
42,000
42,000
85,000
85,000
85,000
85,000
65,000
65,000
N/A
50,000
42,000
42,000
42,000
22,000
22,000
22,000
22,000
Maximum
Circuit Amps at
600 VAC
(CSA)
Specific Coordinated Breaker Rating
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
35,000
35,000
35,000
35,000
35,000
35,000
35,000
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
35,000
35,000
35,000
10,000
10,000
10,000
10,000
Maximum
Circuit Amps at
480 VAC
(UL)
85,000
85,000
85,000
85,000
42,000
42,000
N/A
42,000
35,000
35,000
35,000
35,000
35,000
35,000
35,000
85,000
85,000
85,000
85,000
42,000
42,000
N/A
42,000
35,000
35,000
35,000
10,000
10,000
10,000
10,000
Maximum
Circuit Amps at
600 VAC
(CSA)
Any Molded Case
Breaker Rating
Automatic Transfer Switch Coordinated Breaker &
Current Limiting Fuse Withstand & Closing Ratings (WCR)
80,000
60,000
40,000
32,000
24,000
20,000
16,000
16,000
10,000
10,000
10,000
10,000
5,000
5,000
5,000
80,000
60,000
40,000
32,000
24,000
20,000
16,000
12,000
10,000
10,000
10,000
10,000
5,000
5,000
5,000
Minimum
UL 1008
Ratings
(Table 34.1)
TB-1102 • Page 8
1,000
1,250
1,500
2,000
2,500
4,000
6,000
1,000
1,200
1,600
2,000
3,000
4,000
ZTG
ZTG
ZTG
ZTG
ZTG
ZTG
ZTG
800
100
ZTG
ZTG
125
80
ZTG
600
50
100
40
ZBTS & ZBTE
N/A
6,000
4,000
ZBTS & ZBTE
600
4,000
3,000
ZBTS & ZBTE
400
4,000
2,600
ZBTS & ZBTE
ZTG
2,500
2,000
ZBTS & ZBTE
ZTG
2,000
1,600
ZBTS & ZBTE
350
1,500
1,200
ZBTS & ZBTE
260
1,250
1,000
ZBTS & ZBTE
ZTG
1,000
800
300
750
600
ZBTS & ZBTE
200
600
400
ZBTS & ZBTE
150
350
260
ZBTS & ZBTE
225
300
225
ZBTS & ZBTE
ZTG
200
150
ZTG
125
100
ZBTS & ZBTE
Maximum
Fuse
Size,
Amps
ZBTS & ZBTE
UL 1008
ZTS
Switch
Rating
200,000
200,000
200,000
200,000
200,000
200,000
200,000
N/A
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
150,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
200,000
N/A
200,000
200,000
200,000
200,000
200,000
150,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Maximum
Maximum
Circuit Amps at Circuit Amps at
600 VAC
480 VAC
(UL)
(CSA)
Current Limiting Fuse
5,000
4,000
2,500
2,500
1,600
1,600
1,200
800
800
800
800
400
400
400
400
5,000
4,000
N/A
2,500
2,500
1,600
1,600
1,600
800
800
800
800
800
800
Maximum
Circuit Breaker
Size, Amps
Any Molded Case
Breaker Rating
100,000
100,000
100,000
100,000
85,000
85,000
65,000
50,000
50,000
50,000
35,000
30,000
30,000
30,000
30,000
30,000
100,000
100,000
N/A
100,000
100,000
85,000
85,000
85,000
65,000
50,000
50,000
50,000
50,000
50,000
85,000
85,000
85,000
85,000
65,000
65,000
50,000
42,000
42,000
42,000
22,000
22,000
22,000
22,000
22,000
22,000
85,000
85,000
N/A
85,000
85,000
65,000
65,000
65,000
50,000
42,000
42,000
42,000
42,000
42,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
100,000
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
35,000
35,000
35,000
35,000
35,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
85,000
85,000
N/A
85,000
85,000
42,000
42,000
42,000
42,000
35,000
35,000
35,000
35,000
35,000
Maximum
Maximum
Maximum
Maximum
Circuit Amps at Circuit Amps at Circuit Amps at Circuit Amps at
600 VAC
480 VAC
600 VAC
480 VAC
(CSA)
(UL)
(CSA)
(UL)
Specific Coordinated Breaker Rating
Automatic Transfer Switch Coordinated Breaker &
Current Limiting Fuse Withstand & Closing Ratings (WCR)
80,000
60,000
40,000
32,000
24,000
20,000
16,000
12,000
10,000
10,000
10,000
10,000
5,000
5,000
5,000
80,000
60,000
52,000
40,000
32,000
24,000
20,000
16,000
12,000
10,000
10,000
10,000
10,000
5,000
Minimum
UL 1008
Ratings
(Table 34.1)
Page 9 • TB-1102
200
300
350
600
N/A
1,000
1,250
1,500
2,000
2,500
4,000
50
100
125
200
300
300
400
500
125
200
300
350
600
150
225
260
400
600
800
1,000
1,200
1,600
2,000
3,000
40
80
100
150
200
225
300
400
40
80
100
150
225
260
400
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTGD
ZTX
ZTX
ZTX
ZTX
ZTX
ZTX
ZTX
ZTX
ZTSCT & ZTECT
ZTSCT & ZTECT
ZTSCT
ZTSCT
ZTSCT
ZTSCT
ZTSCT
ZTGD
ZTGD
100
125
80
100
ZTGD
50
40
Maximum
Fuse
Size,
Amps
ZTGD
UL 1008
ZTS
Switch
Rating
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
N/A
200,000
200,000
200,000
200,000
200,000
200,000
200,000
Maximum
Circuit Amps at
480 VAC
(UL)
200,000
200,000
200,000
200,000
200,000
200,000
200,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
200,000
200,000
200,000
200,000
200,000
200,000
200,000
Maximum
Circuit Amps at
600 VAC
(CSA)
Current Limiting Fuse
800
800
800
800
800
800
800
400
400
400
400
400
400
50,000
50,000
30,000
30,000
30,000
30,000
30,000
30,000
100,000
100,000
100,000
85,000
85,000
65,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
50,000
Consult Factory
4,000
2,500
2,500
1,600
1,600
1,200
800
800
800
800
800
800
800
800
Maximum
Circuit Breaker
Size, Amps
Maximum
Circuit Amps at
480 VAC
(UL)
42,000
42,000
42,000
42,000
42,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
85,000
85,000
85,000
65,000
65,000
N/A
42,000
42,000
42,000
42,000
42,000
42,000
42,000
42,000
Maximum
Circuit Amps at
600 VAC
(CSA)
Specific Coordinated Breaker Rating
35,000
35,000
35,000
35,000
35,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Maximum
Circuit Amps at
480 VAC
(UL)
35,000
35,000
35,000
35,000
35,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Maximum
Circuit Amps at
600 VAC
(CSA)
Any Molded Case
Breaker Rating
Automatic Transfer Switch Coordinated Breaker &
Current Limiting Fuse Withstand & Closing Ratings (WCR)
10,000
10,000
10,000
10,000
5,000
10,000
10,000
10,000
10,000
10,000
5,000
5,000
5,000
60,000
40,000
32,000
24,000
20,000
16,000
12,000
10,000
10,000
10,000
10,000
5,000
5,000
5,000
Minimum
UL 1008
Ratings
(Table 34.1)
TB-1102 • Page 10
1,000
1,250
1,500
2,000
2,500
4,000
4,000
6,000
800
1,200
1,600
2,000
2,600
3,000
4,000
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
ZBTSD & ZBTED
1,000
750
600
ZBTSD & ZBTED
600
400
ZBTSD & ZBTED
ZBTSD & ZBTED
350
100
ZTSCT & ZTECT
260
125
4,000
ZTSCT & ZTECT
ZBTSD & ZBTED
6,000
3,000
ZTSCT & ZTECT
200
4,000
2,000
ZTSCT & ZTECT
300
2,500
1,600
ZTSCT & ZTECT
150
2,000
1,200
ZTSCT & ZTECT
225
1,500
1,000
ZTSCT & ZTECT
ZBTSD & ZBTED
1,250
800
ZBTSD & ZBTED
750
1,000
600
Maximum
Fuse
Size,
Amps
ZTSCT & ZTECT
UL 1008
ZTS
Switch
Rating
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
150,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
150,000
N/A
N/A
N/A
N/A
N/A
N/A
150,000
Maximum
Maximum
Circuit Amps at Circuit Amps at
480 VAC
600 VAC
(UL)
(CSA)
Current Limiting Fuse
5,000
4,000
N/A
2,500
2,500
1,600
1,600
1,600
800
800
800
800
800
800
5,000
4,000
2,500
2,500
1,600
1,600
1,200
800
Maximum
Circuit Breaker
Size, Amps
Any Molded Case
Breaker Rating
100,000
100,000
N/A
100,000
100,000
85,000
85,000
85,000
65,000
50,000
50,000
50,000
50,000
50,000
100,000
100,000
100,000
100,000
85,000
85,000
65,000
65,000
85,000
85,000
N/A
85,000
85,000
65,000
65,000
65,000
50,000
42,000
42,000
42,000
42,000
42,000
85,000
85,000
85,000
85,000
65,000
65,000
N/A
50,000
100,000
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
35,000
35,000
35,000
35,000
35,000
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
85,000
85,000
N/A
85,000
85,000
42,000
42,000
42,000
42,000
35,000
35,000
35,000
35,000
35,000
85,000
85,000
85,000
85,000
42,000
42,000
N/A
42,000
Maximum
Maximum
Maximum
Maximum
Circuit Amps at Circuit Amps at Circuit Amps at Circuit Amps at
480 VAC
600 VAC
480 VAC
600 VAC
(UL)
(CSA)
(UL)
(CSA)
Specific Coordinated Breaker Rating
Automatic Transfer Switch Coordinated Breaker &
Current Limiting Fuse Withstand & Closing Ratings (WCR)
80,000
60,000
52,000
40,000
32,000
24,000
20,000
16,000
12,000
10,000
10,000
10,000
10,000
5,000
80,000
60,000
40,000
32,000
24,000
20,000
16,000
16,000
Minimum
UL 1008
Ratings
(Table 34.1)
Page 11 • TB-1102
1,500
2,000
2,500
4,000
4,000
6,000
1,200
1,600
2,000
2,600
3,000
4,000
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
600
ZBTSCT & ZBTECT
1,250
400
ZBTSCT & ZBTECT
1,000
260
800
225
ZBTSCT & ZBTECT
1,000
150
ZBTSCT & ZBTECT
ZBTSCT & ZBTECT
750
100
Maximum
Fuse
Size,
Amps
ZBTSCT & ZBTECT
UL 1008
ZTS
Switch
Rating
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
200,000
150,000
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Maximum
Maximum
Circuit Amps at Circuit Amps at
480 VAC
600 VAC
(UL)
(CSA)
Current Limiting Fuse
5,000
4,000
N/A
2,500
2,500
1,600
1,600
1,600
800
Any Molded Case
Breaker Rating
100,000
100,000
N/A
100,000
100,000
85,000
85,000
85,000
65,000
85,000
85,000
N/A
85,000
85,000
65,000
65,000
65,000
50,000
100,000
100,000
100,000
100,000
100,000
50,000
50,000
50,000
50,000
85,000
85,000
N/A
85,000
85,000
42,000
42,000
42,000
42,000
Maximum
Maximum
Maximum
Maximum
Circuit Amps at Circuit Amps at Circuit Amps at Circuit Amps at
480 VAC
600 VAC
480 VAC
600 VAC
(UL)
(CSA)
(UL)
(CSA)
Consult Factory
Maximum
Circuit Breaker
Size, Amps
Specific Coordinated Breaker Rating
Automatic Transfer Switch Coordinated Breaker &
Current Limiting Fuse Withstand & Closing Ratings (WCR)
80,000
60,000
52,000
40,000
32,000
24,000
20,000
16,000
12,000
Minimum
UL 1008
Ratings
(Table 34.1)
TB-1102 • Page 12
40
80
100
150
40
80
100
150
V-1824
Drawing
reference
V-1824
Amp
10,000
10,000
Any
Breaker
Rating
Square D
Siemens
General Electric
22,000 Cutler-Hammer
Square D
Siemens
General Electric
30,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
FDC, HFD
HJD, JDC
HKD, KD, KDB, KDC, LA Tripac, LCL
TB1
SEL, SEP, TEL, THLC1
TFL, THLC2
SFL, SFP
SGL4, SGP4, TB4, THJK4, THLC4, TJJ, TJK4
CED6
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, JD6, JXD6, SCJD6,
SHJD6, SJD6
150A FI
250A KA, KH, KI
400A LA, LC, LE, LH, LI, LX, LXI
150A
250A
400A
100A
150A
225A
250A
400A
125A
250A
400A
ZTS & ZTE series, 40-150A, 600V
FDC, HFD
HJD, JDC
HKD, KD, KDB, KDC, LA Tripac, LCL
TB1
SEL, SEP, TEL, THLC1
TFL, THLC2
SFL, SFP
SGL4, SGP4, TB4, THJK4, THLC4, TJJ, TJK4, TLB4
CED6, HED4, HED6
CFD6, FD6, FXD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, JD6, JXD6, SCJD6
SHJD6, SJD6
150A FC, FI
250A KC, KH, KI
400A LA, LC, LE, LH, LI, LX, LXI
150A
250A
400A
100A
150A
225A
250A
400A
125A
250A
400A
ZTS & ZTE series, 40-150A, 480V
Coordinated Breaker Model Types
400
400
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
J
Fuse Class
400
400
Maximum
Fuse
Size
[A]
Page 13 • TB-1102
V-1870
Drawing
reference
225
250
400
Amp
35,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
KC, KI
--LC, LE, LI, LX, LXI
ME, MH, MX
ZTS & ZTE series, 225-400A, 480V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
RK5
RK1
Fuse Class
600
600
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 14
225
250
400
600
V-1287
Drawing
reference
V-1870
Amp
50,000
35,000
Any
Breaker
Rating
Square D
Siemens
General Electric
65,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
42,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
--KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
CF250L
CJ400L, CK400H
--CK800H
CFD6
CJD6, HHJD6, HHJXD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
KI
--LI, LXI
---
600A
800A
600A
800A
600A
800A
600A
800A
CHDC, CLDC, HLD, LDC
CHMDL, DSL206, HMDL, NB Tripac
TB6, TJL, SGL6, SGP6
TB8, TC, THC, THP, TP, SKL8, SKP8
CLD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, SCMD6, SHMD6
LC, LE, LI, LX, LXI
ME, MH, MX, NC, NE, NX
ZTS & ZTE series, 600A, 480V
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
ZTS & ZTE series, 225-400A, 600V
Coordinated Breaker Model Types
800
800
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
200,000
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
J
RK5
RK1
J
Fuse Class
750
750
750
750
600
Maximum
Fuse
Size
[A]
Page 15 • TB-1102
Amp
600
800
Drawing
reference
V-1287
V-1929
50,000
42,000
Any
Breaker
Rating
Consult factory
Square D
Merlin Gerin
Siemens
General Electric
65,000 Cutler-Hammer
Square D
Siemens
General Electric
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
CLDC, LDC
DSL206, NB Tripac
TB6, SGL6, SGP6
TB8, THC, THP, SKP8
CLD6, SCLD6
CMD6, HMD6, SCMD6, SHMD6
LI, LXI
NC, NE, NX
CHMDL, HMDL, NB Tripac
CHND, CNDC, HND, NDC
TB8, TC, THC, THP, TKL85, TP, SKL8, SKP8
TKL12S, SKL12, SKP12
CMD6, HMD6, SCMD6, SHMD6
CND6, HND6, SCND6, SHND6
--CK1000L
ME, MH, MX
NC, NE, NX
ZTS & ZTE series, 800A, 600V
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
ZTS & ZTE series, 800A, 480V
600A
800A
600A
800A
600A
800A
600A
800A
ZTS & ZTE series, 600A, 600V
Coordinated Breaker Model Types
1,200
800
Max
MCCB
Breaker
Ampere
Size
200,000
150,000
150,000
150,000
150,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
J
RK5
RK1
Fuse Class
1,200
750
750
750
750
Maximum
Fuse
Size
[A]
TB-1102 • Page 16
Amp
1,000
1,200
1,000
1,200
Drawing
reference
V-1288
V-1288A
V-1288
V-1288A
42,000
50,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
ZTS & ZTE series, 1000-1200A, 600V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
ZTS & ZTE series, 1000-1200A, 480V
Coordinated Breaker Model Types
1,600
1,600
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
Fuse Class
N/A
3,000
Maximum
Fuse
Size
[A]
Page 17 • TB-1102
1,600
2,000
1,600
2,000
2,600
3,000
2,600
3,000
4,000
4,000
V-1291
V-1291
V-1291
V-1825
V-1825
Amp
V-1291
Drawing
reference
85,000
100,000
85,000
100,000
85,000
100,000
Any
Breaker
Rating
85,000
100,000
85,000
100,000
85,000
100,000
Maximum
Coordinated
Breaker
Rating
Any
ZTS & ZTE series, 4000A, 600V
Any
ZTS & ZTE series, 4000A, 480V
Any
ZTS & ZTE series, 2600-3000A, 600V
Any
ZTS & ZTE series, 2600-3000A, 480V
Any
ZTS & ZTE series, 1600-2000A, 600V
Any
ZTS & ZTE series, 1600-2000A, 480V
Coordinated Breaker Model Types
5,000
5,000
4,000
4,000
4,000
4,000
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
N/A
200,000
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
N/A
L
N/A
L
Fuse Class
6,000
6,000
N/A
4,000
N/A
2,500
Maximum
Fuse
Size
[A]
TB-1102 • Page 18
Drawing
reference
V-2002
40
80
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
50,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
----JHB
----FDC, HFD
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
THLC1, SEL, SEP
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TJL, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
--CF250H, CF250L
CJ400L, CJ400H, CK400H, CK400N
CJ600H
CK800H, CK800N
--CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
--KC, KI
LC, LE, LI, LX, LXI
LC, LE, LI, LX, LXI
ME, MH, MX
ZTSD & ZTED series, 40-400A, 480V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
RK1
RK5
Fuse Class
600
600
600
Maximum
Fuse
Size
[A]
Page 19 • TB-1102
V-2002
Drawing
reference
40
80
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
42,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
----JHB, MHB
----FDC
JDC
HKD, KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC1
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
--CF250L
CJ400L, CK400H, CK400L, CK400N, CK400NN
--CK800H
--CFD6
CJD6, HHJD6, HHJXD6, HJD6, HLD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
--KI
LC, LE, LI, LX, LXI
LI, LXI
---
ZTSD & ZTED series, 40-400A, 600V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
Fuse Class
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 20
Any
Breaker
Rating
50,000
42,000
50,000
Amp
600
600
800
Drawing
reference
V-1287
V-1287
V-1929
Consult factory
Square D
Merlin Gerin
Siemens
General Electric
65,000 Cutler-Hammer
Square D
Siemens
General Electric
50,000 Cutler-Hammer
Square D
Siemens
General Electric
65,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
CHDC, CLDC, HLD, LDC
CHMDL, DSL206, HMDL, NB Tripac
TB6, TJL, SGL6, SGP6
TB8, TC, THC, THP, TP, SKL8, SKP8
CLD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, SCMD6, SHMD6
LC, LE, LI, LX, LXI
ME, MH, MX, NC, NE, NX
CLDC, LDC
DSL206, NB Tripac
TB6, SGL6, SGP6
TB8, THC, THP, SKP8
CLD6, SCLD6
CMD6, HMD6, SCMD6, SHMD6
LI, LXI
NC, NE, NX
CHMDL, HMDL, NB Tripac
CHND, CNDC, HND, NDC
TB8, TC, THC, THP, TKL85, TP, SKL8, SKP8
TKL12S, SKL12, SKP12
CMD6, HMD6, SCMD6, SHMD6
CND6, HND6, SCND6, SHND6
--CK1000L
ME, MH, MX
NC, NE, NX
ZTSD & ZTED series, 800A, 600V
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
ZTSD & ZTED series, 800A, 480V
600A
800A
600A
800A
600A
800A
600A
800A
ZTSD & ZTED series, 600A, 600V
600A
800A
600A
800A
600A
800A
600A
800A
ZTSD & ZTED series, 600A, 480V
Coordinated Breaker Model Types
1,200
800
800
Max
MCCB
Breaker
Ampere
Size
200,000
150,000
150,000
150,000
150,000
200,000
200,000
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
J
RK5
RK1
L
J
RK1
RK5
Fuse Class
1,200
750
750
750
750
750
750
750
750
Maximum
Fuse
Size
[A]
Page 21 • TB-1102
V-1288A
V-1288
V-1288A
V-1288
Drawing
reference
1,000
1,200
1,000
1,200
Amp
42,000
50,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
ZTSD & ZTED series, 1000-1200A, 600V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
ZTSD & ZTED series, 1000-1200A, 480V
Coordinated Breaker Model Types
1,600
1,600
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
Fuse Class
N/A
3,000
Maximum
Fuse
Size
[A]
TB-1102 • Page 22
100,000
85,000
100,000
85,000
100,000
85,000
1,600
2,000
1,600
2,000
2,600
3,000
2,600
3,000
4,000
4,000
V-1291
V-1291
V-1291
V-1825
V-1825
Drawing
reference
V-1291
Amp
Any
Breaker
Rating
85,000
100,000
85,000
100,000
85,000
100,000
Maximum
Coordinated
Breaker
Rating
Any
ZTSD & ZTED series, 4000A, 600V
Any
ZTSD & ZTED series, 4000A, 480V
Any
ZTSD & ZTED series, 2600-3000A, 600V
Any
ZTSD & ZTED series, 2600-3000A, 480V
Any
ZTSD & ZTED series, 1600-2000A, 600V
Any
ZTSD & ZTED series, 1600-2000A, 480V
Coordinated Breaker Model Types
5,000
5,000
4,000
4,000
4,000
4,000
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
N/A
200,000
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
N/A
L
N/A
L
Fuse Class
6,000
6,000
N/A
4,000
N/A
2,500
Maximum
Fuse
Size
[A]
Page 23 • TB-1102
260
N/A
40
80
100
150
200
225
V-1824
V-2061
N/A
40
80
100
150
200
225
Amp
Any
Breaker
Rating
V-1824
Drawing
reference
35,000
Square D
Siemens
General Electric
22,000 Cutler-Hammer
Square D
Siemens
General Electric
30,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
ZTG 260A at 480VAC
FDC, HFD
HJD, JDC
HKD, KD, KDB, KDC, LA Tripac, LCL
TB1
SEL, SEP, TEL, THLC1
TFL, THLC2
SFL, SFP
SGL4, SGP4, TB4, THJK4, THLC4, TJJ, TJK4
CED6
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, JD6, JXD6, SCJD6,
SHJD6, SJD6
150A FI
250A KA, KH, KI
400A LA, LC, LE, LH, LI, LX, LXI
150A
250A
400A
100A
150A
225A
250A
400A
125A
250A
400A
ZTG series, 40-225A, 600V
FDC, HFD
HJD, JDC
HKD, KD, KDB, KDC, LA Tripac, LCL
TB1
SEL, SEP, TEL, THLC1
TFL, THLC2
SFL, SFP
SGL4, SGP4, TB4, THJK4, THLC4, TJJ, TJK4, TLB4
CED6, HED4, HED6
CFD6, FD6, FXD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, JD6, JXD6, SCJD6
SHJD6, SJD6
150A FC, FI
250A KC, KH, KI
400A LA, LC, LE, LH, LI, LX, LXI
150A
250A
400A
100A
150A
225A
250A
400A
125A
250A
400A
ZTG series, 40-225A, 480V
Coordinated Breaker Model Types
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
J
Fuse Class
400
400
Maximum
Fuse
Size
[A]
TB-1102 • Page 24
N/A
N/A
260
400
260
400
V-1870
Drawing
reference
V-1870
Amp
Any
Breaker
Rating
Merlin Gerin
General Electric
42,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
KC, KI
--LC, LE, LI, LX, LXI
ME, MH, MX
Use ZTS 260A PP for ZTG 260A at 600V
--KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
CF250L
CJ400L, CK400H
--CK800H
ZTG series, 260-400A, 480V
Coordinated Breaker Model Types
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
J
RK5
RK1
Fuse Class
600
600
600
600
Maximum
Fuse
Size
[A]
Page 25 • TB-1102
Any
Breaker
Rating
N/A
Amp
600
Drawing
reference
V-2021
Square D
Siemens
Merlin Gerin
General Electric
50,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
----JHB
----FDC, HFD
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SEL, SEP, THLC1
SFP, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TJL, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKL8, SKH8, SKP8, TB8
--CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
ZTG series, 600A, 480V
CFD6
CJD6, HHJD6, HHJXD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
KI
--LI, LXI
---
ZTG series, 260-400A, 480V (cont).
Coordinated Breaker Model Types
N/A
Max
MCCB
Breaker
Ampere
Size
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
Fuse Class
N/A
Maximum
Fuse
Size
[A]
TB-1102 • Page 26
Any
Breaker
Rating
N/A
N/A
Amp
600
800
Drawing
reference
V-2021
V-1929
Square D
Siemens
Consult factory
Square D
Merlin Gerin
Siemens
General Electric
65,000 Cutler-Hammer
42,000 General Electric
Maximum
Coordinated
Breaker
Rating
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
ZTG series, 800A, 600V
CHMDL, HMDL, NB Tripac
CHND, CNDC, HND, NDC
TB8, TC, THC, THP, TKL85, TP, SKL8, SKP8
TKL12S, SKL12, SKP12
CMD6, HMD6, SCMD6, SHMD6
CND6, HND6, SCND6, SHND6
--CK1000L
ME, MH, MX
NC, NE, NX
ZTG series, 800A, 480V
Use ZTS 600A PP for ZTG 600A at 600V
ZTG series, 600A, 600V
--CFD6, HFD6
CJD6, HJD6, HHJD6, HHJXD6, SCJD6, SHJD6
CLD6, HLD6, HHLD6, HHLXD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
--KI, KC
LC, LE, LI, LX, LXI
LC, LE, LI, LX, LXI
ME, MH, MX
800A SKLA
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
ZTG series, 600A, 480V (cont).
Coordinated Breaker Model Types
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
N/A
Fuse Class
1,200
N/A
Maximum
Fuse
Size
[A]
Page 27 • TB-1102
V-1288A
V-1288
V-1288A
V-1288
Drawing
reference
1,000
1,200
1,000
1,200
Amp
N/A
N/A
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
ZTG series, 1000-1200A, 600V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
ZTG series, 1000-1200A, 480V
Coordinated Breaker Model Types
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
Fuse Class
N/A
3,000
Maximum
Fuse
Size
[A]
TB-1102 • Page 28
N/A
N/A
N/A
N/A
1,600
2,000
1,600
2,000
2,600
3,000
2,600
3,000
V-1291
V-1291
V-1291
Drawing
reference
V-1291
Amp
Any
Breaker
Rating
85,000
100,000
85,000
100,000
Maximum
Coordinated
Breaker
Rating
Any
ZTG series, 2600-3000A, 600V
Any
ZTS series, 2600-3000A, 480V
Any
ZTG series, 1600-2000A, 600V
Any
ZTG series, 1600-2000A, 480V
Coordinated Breaker Model Types
N/A
N/A
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
N/A
L
Fuse Class
N/A
4,000
N/A
2,500
Maximum
Fuse
Size
[A]
Page 29 • TB-1102
V-2002
Drawing
reference
40
80
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
50,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
----JHB
----FDC, HFD
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
THLC1, SEL, SEP
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TJL, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
--CF250H, CF250L
CJ400L, CJ400H, CK400H, CK400N
CJ600H
CK800H, CK800N
--CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
--KC, KI
LC, LE, LI, LX, LXI
LC, LE, LI, LX, LXI
ME, MH, MX
ZTGD series, 40-400A, 480V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
RK1
RK5
Fuse Class
600
600
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 30
Drawing
reference
V-2002
40
80
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
42,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
----JHB, MHB
----FDC
JDC
HKD, KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC1
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
--CF250L
CJ400L, CK400H, CK400L, CK400N, CK400NN
--CK800H
--CFD6
CJD6, HHJD6, HHJXD6, HJD6, HLD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
--KI
LC, LE, LI, LX, LXI
LI, LXI
---
ZTGD series, 40-400A, 600V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
Fuse Class
600
Maximum
Fuse
Size
[A]
Page 31 • TB-1102
Any
Breaker
Rating
N/A
Amp
600
Drawing
reference
V-2021
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
50,000 ABB
Maximum
Coordinated
Breaker
Rating
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
----JHB
----FDC, HFD
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SEL, SEP, THLC1
SFP, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TJL, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKL8, SKH8, SKP8, TB8
--CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
--CFD6, HFD6
CJD6, HJD6, HHJD6, HHJXD6, SCJD6, SHJD6
CLD6, HLD6, HHLD6, HHLXD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
--KC, KI
LC, LE, LI, LX, LXI
LC, LE, LI, LX, LXI
ME, MH, MX
ZTGD series, 600A, 480V
Coordinated Breaker Model Types
N/A
Max
MCCB
Breaker
Ampere
Size
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
Fuse Class
N/A
Maximum
Fuse
Size
[A]
TB-1102 • Page 32
N/A
N/A
N/A
Amp
600
800
1,000
1,200
V-2021
V-1929
V-1288
V-1288A
Any
Breaker
Rating
Drawing
reference
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
Consult factory
Square D
Merlin Gerin
Siemens
General Electric
65,000 Cutler-Hammer
42,000 General Electric
Maximum
Coordinated
Breaker
Rating
ZTGD series, 800A, 600V
CHMDL, HMDL, NB Tripac
CHND, CNDC, HND, NDC
TB8, TC, THC, THP, TKL85, TP, SKL8, SKP8
TKL12S, SKL12, SKP12
CMD6, HMD6, SCMD6, SHMD6
CND6, HND6, SCND6, SHND6
--CK1000L
ME, MH, MX
NC, NE, NX
ZTGD series, 800A, 480V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
ZTGD series, 1000-1200A, 480V
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A SKLA
ZTGD series, 600A, 600V
Coordinated Breaker Model Types
N/A
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
N/A
Fuse Class
3,000
1,200
N/A
Maximum
Fuse
Size
[A]
Page 33 • TB-1102
N/A
N/A
N/A
N/A
1,600
2,000
2,600
3,000
2,600
3,000
V-1291
V-1291
V-1291
N/A
1,600
2,000
1,000
1,200
Amp
Any
Breaker
Rating
V-1291
V-1288A
V-1288
Drawing
reference
85,000
100,000
85,000
100,000
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
Any
ZTGD series, 2600-3000A, 600V
Any
ZTGD series, 2600-3000A, 480V
Any
ZTGD series, 1600-2000A, 600V
Any
ZTGD series, 1600-2000A, 480V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
ZTGD series, 1000-1200A, 600V
Coordinated Breaker Model Types
N/A
N/A
N/A
N/A
N/A
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
N/A
200,000
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
N/A
L
N/A
Fuse Class
N/A
4,000
N/A
2,500
N/A
Maximum
Fuse
Size
[A]
TB-1102 • Page 34
Drawing
reference
V-1824
40
80
100
150
200
225
Amp
N/A
Any
Breaker
Rating
Square D
Siemens
General Electric
30,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
FDC, HFD
HJD, JDC
HKD, KD, KDB, KDC, LA Tripac, LCL
TB1
SEL, SEP, TEL, THLC1
TFL, THLC2
SFL, SFP
SGL4, SGP4, TB4, THJK4, THLC4, TJJ, TJK4, TLB4
CED6, HED4, HED6
CFD6, FD6, FXD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, JD6, JXD6, SCJD6
SHJD6, SJD6
150A FC, FI
250A KC, KH, KI
400A LA, LC, LE, LH, LI, LX, LXI
150A
250A
400A
100A
150A
225A
250A
400A
125A
250A
400A
ZTX series, 40-225A, 480V
Coordinated Breaker Model Types
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
Fuse Class
400
Maximum
Fuse
Size
[A]
Page 35 • TB-1102
V-1870
Drawing
reference
300
400
Amp
N/A
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
KC, KI
--LC, LE, LI, LX, LXI
ME, MH, MX
ZTX series, 300-400A, 480V
Coordinated Breaker Model Types
N/A
Max
MCCB
Breaker
Ampere
Size
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
RK5
RK1
Fuse Class
600
600
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 36
Drawing
reference
V-2002
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
50,000
Maximum
Coordinated
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
JHB
----FDC, HFD
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
THLC1, SEL, SEP
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TJL, TLB4
SGL6, SGP6, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
--CF250H, CF250L
CJ400L, CJ400H, CK400H, CK400N
CJ600H
CK800H, CK800N
--CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
--KC, KI
LC, LE, LI, LX, LXI
LC, LE, LI, LX, LXI
ME, MH, MX
ZTSCT & ZTECT series, 100-400A, 480V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
RK5
Fuse Class
600
Maximum
Fuse
Size
[A]
Page 37 • TB-1102
V-2002
Drawing
reference
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
42,000
Maximum
Coordinated
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
Cutler-Hammer
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
150A
250A
400A
600A
800A
JHB, MHB
----FDC
JDC
HKD, KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC1
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
--CF250L
CJ400L, CK400H, CK400L, CK400N, CK400NN
--CK800H
--CFD6
CJD6, HHJD6, HHJXD6, HJD6, HLD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
--KI
LC, LE, LI, LX, LXI
LI, LXI
---
ZTSCT & ZTECT series, 100-400A, 600V
Coordinated Breaker Model Types
800
Max
MCCB
Breaker
Ampere
Size
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
Fuse Class
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 38
Any
Breaker
Rating
50,000
42,000
50,000
Amp
600
600
800
Drawing
reference
V-1287
V-1287
V-1929
Consult factory
Square D
Merlin Gerin
Siemens
General Electric
65,000 Cutler-Hammer
Square D
Siemens
General Electric
50,000 Cutler-Hammer
Square D
Siemens
General Electric
65,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
CHDC, CLDC, HLD, LDC
CHMDL, HMDL, DSL206, NB Tripac
TB6, TJL, SGL6, SGP6
TB8, TC, THC, THP, TP, SKL8, SKP8
CLD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, SCMD6, SHMD6
LC, LE, LI, LX, LXI
ME, MH, MX, NC, NE, NX
CLDC, LDC
DSL206, NB Tripac
TB6, SGL6, SGP6
TB8, THC, THP, SKP8
CLD6, SCLD6
CMD6, HMD6, SCMD6, SHMD6
LI, LXI
NC, NE, NX
CHMDL, HMDL, NB Tripac
CHND, CNDC, HND, NDC
TB8, TC, THC, THP, TKL85, TP, SKL8, SKP8
TKL12S, SKL12, SKP12
CMD6, HMD6, SCMD6, SHMD6
CND6, HND6, SCND6, SHND6
--CK1000L
ME, MH, MX
NC, NE, NX
ZTSCT & ZTECT series, 800A, 600V
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
800A
1,200A
ZTSCT & ZTECT series, 800A, 480V
600A
800A
600A
800A
600A
800A
600A
800A
ZTSCT & ZTECT series, 600A, 600V
600A
800A
600A
800A
600A
800A
600A
800A
ZTSCT & ZTECT series, 600A, 480V
Coordinated Breaker Model Types
1,200
800
800
Max
MCCB
Breaker
Ampere
Size
200,000
150,000
150,000
150,000
150,000
200,000
200,000
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
J
RK5
RK1
L
J
RK5
RK1
Fuse Class
1,200
750
750
750
750
750
750
750
750
Maximum
Fuse
Size
[A]
Page 39 • TB-1102
V-1288A
V-1288
V-1288A
V-1288
Drawing
reference
1,000
1,200
1,000
1,200
Amp
42,000
50,000
Any
Breaker
Rating
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
ZTSCT & ZTECT series, 1000-1200A, 600V
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
ZTSCT & ZTECT series, 1000-1200A, 480V
Coordinated Breaker Model Types
1,600
1,600
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
Fuse Class
N/A
3,000
Maximum
Fuse
Size
[A]
TB-1102 • Page 40
100,000
85,000
100,000
85,000
100,000
85,000
1,600
2,000
1,600
2,000
2,600
3,000
2,600
3,000
4,000
4,000
V-1291
V-1291
V-1291
V-1825
V-1825
Drawing
reference
V-1291
Amp
Any
Breaker
Rating
85,000
100,000
85,000
100,000
85,000
100,000
Maximum
Coordinated
Breaker
Rating
Any
ZTSCT & ZTECT series, 4000A, 600V
Any
ZTSCT & ZTECT series, 4000A, 480V
Any
ZTSCT & ZTECT series, 2600-3000A, 600V
Any
ZTSCT & ZTECT series, 2600-3000A, 480V
Any
ZTSCT & ZTECT series, 1600-2000A, 600V
Any
ZTSCT & ZTECT series, 1600-2000A, 480V
Coordinated Breaker Model Types
5,000
5,000
4,000
4,000
4,000
4,000
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
N/A
200,000
N/A
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
N/A
L
N/A
L
Fuse Class
6,000
6,000
N/A
4,000
N/A
2,500
Maximum
Fuse
Size
[A]
Page 41 • TB-1102
V-2044
Drawing
reference
100
150
225
260
400
Amp
35,000
Any
Breaker
Rating
Merlin Gerin
General Electric
Square D
Siemens
Coordinated Breaker Model Types
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
For ZBTSCT series, consult factory
HJD, JDC
CHKD, HKD, KDC, LA Tripac, LCL
CHLD, CLDC, HLD, LDC
NB Tripac
SFL, SFP, TFL, THLC2
SGL4, SGP4, TB4, THLC4, TLB4
SGL6, SGP6, SGPA, TB6, TJL1S-6S, TJL4V, TKL4V
SKH8, SKL8, SKP8, TB8
CF250H, CF250L
CJ400H, CJ400L, CK400H, CK400N
CJ600H
CK800H, CK800N
CFD6, HFD6
CJD6, HHJD6, HHJXD6, HJD6, SCJD6, SHJD6
CLD6, HHLD6, HHLXD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, HMXD6, MD6, MXD6, SCMD6, SHMD6, SMD6
KC, KI
--LC, LE, LI, LX, LXI
ME, MH, MX
ZBTS & ZBTE, ZBTSD & ZBTED series, 100-400A, 480V
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
800
Max
MCCB
Breaker
Ampere
Size
200,000
100,000
100,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
J
RK1
RK5
Fuse Class
600
600
600
Maximum
Fuse
Size
[A]
TB-1102 • Page 42
30,000
50,000
100
150
225
260
400
600
V-1287
Drawing
reference
V-2044
Amp
Any
Breaker
Rating
Merlin Gerin
General Electric
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
250A
400A
600A
800A
For ZBTSCT series, consult factory
--KDC, LA Tripac, LCL
CLDC, LDC
NB Tripac
THLC2
SGL4, SGP4, TB4, THLC4
SGL6, SGP6, TB6
SKL8, SKP8, TB8
CF250L
CJ400L, CK400H
--CK800H
CFD6
CJD6, HHJD6, HHJXD6, SCJD6
CLD6, HHLD6, HHLXD6, SCLD6
CMD6, HMD6, HMXD6, SCMD6, SHMD6
KI
--LI, LXI
---
Square D
Siemens
General Electric
65,000 Cutler-Hammer
600A
800A
600A
800A
600A
800A
600A
800A
CHDC, CLDC, HLD, LDC
CHMDL, HMDL, DSL206, NB Tripac
TB6, TJL, SGL6, SGP6
TB8, TC, THC, THP, TP, SKL8, SKP8
CLD6, HLD6, SCLD6, SHLD6
CMD6, HMD6, SCMD6, SHMD6
LC, LE, LI, LX, LXI
ME, MH, MX, NC, NE, NX
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 600A, 480V
Square D
Siemens
Coordinated Breaker Model Types
ZBTS & ZBTE, ZBTSD & ZBTED series, 225-400A, 600V
42,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
N/A
Current
Limiting
Fuse
Rating
N/A
N/A
Maximum
Fuse
Size
[A]
800
200,000
200,000
200,000
200,000
L
J
RK5
RK1
750
750
750
750
ZBTS(D) & ZBTE(D) 600A and ZBTSCT & ZBTECT 100-600A
800
Max
MCCB
Breaker
Ampere
Size
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
Fuse Class
Page 43 • TB-1102
42,000
50,000
Amp
600
800
1,000
1,200
V-1287
V-1288
V-1288A
Any
Breaker
Rating
Drawing
reference
Coordinated Breaker Model Types
CLDC, LDC
DSL206, NB Tripac
TB6, SGL6, SGP6
TB8, THC, THP, SKP8
CLD6, SCLD6
CMD6, HMD6, SCMD6, SHMD6
LI, LXI
NC, NE, NX
Square D
Siemens
Merlin Gerin
General Electric
85,000 Cutler-Hammer
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
CNDC, NDC
CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
--CK1000L
CM1600
CMD6, SCMD6
CND6, SCND6
CPD6
--NC, NE, NX
PCF, PEF, PHF, PXF
Max
MCCB
Breaker
Ampere
Size
Current
Limiting
Fuse
Rating
Maximum
Fuse
Size
[A]
1,600
800
200,000
N/A
L
N/A
3,000
N/A
ZBTS(D) & ZBTE(D) 600A and ZBTSCT & ZBTECT 100-600A
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 800-1200A, 480V
Square D
Siemens
General Electric
600A
800A
600A
800A
600A
800A
600A
800A
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 600A, 600V
50,000 Cutler-Hammer
Maximum
Coordinated
Breaker
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
Fuse Class
TB-1102 • Page 44
Drawing
reference
100,000
85,000
100,000
85,000
1,600
2,000
2,600
3,000
2,600
3,000
V-1291
V-1291
V-1291
42,000
1,600
2,000
800
1,000
1,200
V-1291
V-1288A
V-1288
Amp
Any
Breaker
Rating
Coordinated Breaker Model Types
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
800A
1,200A
1,600A
NB Tripac
--CRDC, PB Tripac, PC, PCC, RDC
SKP8, TB8, THC, THP
SKP12
THC, THP, TRP
----MC16H1, MP16H1, MP16H2
CMD6, SCMD6
CND6, SCND6
CPD6, HPD6, HRD6
--NC, NE, NX
PCF, PEF, PHF, PXF
Any
Any
Any
85,000
Any
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 2600-3000A, 600V
100,000
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 2600-3000A, 480V
85,000
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 1600-2000A, 600V
100,000
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 1600-2000A, 480V
Square D
Siemens
Merlin Gerin
General Electric
65,000 Cutler-Hammer
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 800-1200A, 600V
Maximum
Coordinated
Breaker
Rating
4,000
4,000
4,000
4,000
1,600
Max
MCCB
Breaker
Ampere
Size
N/A
200,000
N/A
200,000
N/A
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
N/A
L
N/A
L
N/A
Fuse Class
N/A
4,000
N/A
2,500
N/A
Maximum
Fuse
Size
[A]
Page 45 • TB-1102
Any
Breaker
Rating
100,000
85,000
Amp
4,000
4,000
Drawing
reference
V-1825
V-1825
85,000
100,000
Coordinated Breaker Model Types
Any
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 4000A, 600V
Any
ZBTS & ZBTE, ZBTSD & ZBTED, ZBTSCT & ZBTECT series, 4000A, 480V
Maximum
Coordinated
Breaker
Rating
5,000
5,000
Max
MCCB
Breaker
Ampere
Size
200,000
200,000
Current
Limiting
Fuse
Rating
Automatic Transfer Switch Coordinated Breaker Withstand & Closing Ratings (WCR)
L
L
Fuse Class
6,000
6,000
Maximum
Fuse
Size
[A]
Extensive Customer Service and Support
Supported by a worldwide network of factory-trained Authorized Service
Centers, our Technical Service Representatives can provide you with field
service, equipment parts and preventive maintenance.
Because emergency power systems are required to operate under the
most adverse circumstances, site personnel may be called upon at any
time to make decisions regarding the operation of the system, therefore
training of these personnel is critical to the future of any installation.
GE offers a variety of training options including on-site classes for project
personnel, factory instruction on your equipment prior to shipment and
service schools covering transfer switches and switchgear systems.
Product Overview
When you purchase emergency power equipment, reliability and quality
are a necessity. GE is committed to providing the highest level of quality
demanded by the industry. Our complete product line will allow you to
specify a total power management system while maintaining overall
compatibility and the most comprehensive warranty in the industry.
Commitment to the Customer
All team members at GE are aware of the critical situations in which our
products are called upon to perform. With that understanding comes
an obligation beyond merely fulfilling an order or turning out a product.
Serving that obligation is our mission at GE.
GE’s team works with you from the first phone call through completed
start-up. Then, working hand in hand with the consulting engineer, the
contractor and the facility owner/operator, we’ll ensure that the system
fulfills both current and future needs.
“Commitment to our customer” has been GE’s driving force for more than
100 years in the power control industry. This same sense of purpose and
responsibility will continue as we address future power control challenges.
GE Energy – Digital Energy
830 W 40th Street, Chicago, IL 60609 USA
800 637 1738 www.gepowerquality.com
Information subject to change without notice. Please verify all details with GE.
© 2011 General Electric Company All Rights Reserved
TB-1102 (2/11)