Automatic transfer
switch DPX
Maintaining continuity of supply becomes crucial especially at places where
even a small delay in supply could result huge losses. The DPX range of MCCBs
can be efficiently used as an Automatic Transfer Switch at places that require
instant power switching. When connected with the microprocessor control
box (line changeover unit) it gives you the flexibility to manage that automatic
changeover between two supply lines effectively with remote controls.
a u to m at i c
When the changeover is made automatically
using motorised MCCB & Microprocessor
Control Box.
When an operator organises the changeover
from a remote location using motorised
MCCBs and push button.
N on - a u to m at i c
Manual
70 I GLOBAL SPECIALIST IN ELECTRICAL AND DIGITAL BUILDING INFRASTRUCTURES
- When an operator manually
performs the changeover
DPXTMexemple : xxxxxxx
pour
xxxxxxxx transfer switch
automatic
DPXTM
automatic transfer switch
■ Technical data
Handling continuity problems efficiently
Maintaining continuity of supply becomes crucial especially at places
where even a small delay in supply could result in huge losses. The
DPX range of MCCBs can be efficiently used as an Automatic Transfer
Switch at places that require instant power switching. When connected
with the microprocessor control box (line changeover unit) it gives you
the flexibility to manage the automatic changeover between two supply
lines effectively with remote controls.
■ Line changeover systems
6253 85
Pack
Cat. nos.
Ready-to-install ATS with FP MCCBs
1
6253 81 250A, T/M, 36kA
1
6253 82 250A, T/M, 70kA
1
6253 83 2
50A, Microprocessor
'S1', 70kA
1
6253 84 630A, T/M, 36kA
1
6253 85 630A, T/M, 70kA
1
6253 87 6
30A, Microprocessor
'S1', 36kA
1
6253 88 6
30A, Microprocessor
'S1', 70kA
1
6253 89 630A, Microprocessor
'S2', 36kA
1
6253 90 630A, Microprocessor
'S2', 70kA
1
6253 91 6
30A, Microprocessor
'Sg', 36kA
1
6253 92 6
30A, Microprocessor
'Sg', 70kA
Manual line changeover
The standard installation may be carried out by using manually
operated DPX circuit breakers in fixed version, combined with
mechanical interlocks. The mechanical interlock between DPX circuit
breakers consists of a support plate on which two circuit breakers are
arranged side-by-side. For particular versions
(plug-in or draw-out version between two or more circuit breakers),
special interlocks with factory pre-setting are available against order.
Motorised controlled line changeover
The electrically controlled line
changeover may be carried out by
using interlocked DPX circuit breakers
equipped with remote controls.
Automatic line changeover
Automatic line changeover is the most advanced
and flexible solution. This system is carried out by combining the
components used for the electrically controlled line changeover
with the microprocessor control box. This device allows to manage
the automatic changeover between two supply sources with simple
programming while safety requirements are never compromised.
Bold catalogue numbers are products normally available with Legrand (India) stockists.
Cat. nos. that are not bold - delivery within 4 - 8 weeks from the date of order.
Bold packing quantity is our mandatory packing. Orders to be placed by Legrand (India) stockists in multiples of the same.
71
DPXTM
automatic transfer switch (continued)
■ Microprocessor control box
General characteristics
Microprocessor Control Box allows to manage the
automatic changeover between two supply lines with
maximum flexibility.
The microprocessor device with microprocessor is
very compact
(144 x 144 mm).
Yet, it is able to perform a large number of functions such as :
• Quick acquisition of voltage levels
• Effective value of line voltage check
• Selection of operating mode (auto/man/test/off)
• Selection of voltage thresholds
• Selection of changeover time
• Display of selected parameters (voltage and time)
• Alarm display
• Starting signal to DG, can be given, in case of primary source failure
• Manual changeover line 1/ line 2
• Lockout of simultaneous switching over between lines
• Diagnostic test
■ Technical characteristics
• Setting of voltage thresholds on main and secondary line to check
between 0.7 and 1Ue (280 - 400 V AC)
• Two models, depending on the supply voltages -230 V AC, 24 V DC
• Changeover time from main line to secondary line 0.5 to 30 s
• Main line resetting time 4 s
• 3-digit data display
• LED - signalling the operating state
• Outgoing relay changeover contacts rating (line circuit breakers
­­control) 16 A 230 V in AC
• Alarm contact rating - 5 A 230 V in AC
• External connections with flexible cable max. 2.5 mm2
• Operating temperature : 0 to 600 C
• Self-extinguishing polycarbonate casing with sealable transparent
shield
• Front degree of protection IP 41 without shield, IP 54 with shield
• Flush-mounting version (144 x 144 mm)
Standard manual changeover
switches
General characteristics
The manual changeover switches
consist of separate parts that have to be
assembled by the user or that may be
factory assembled.
The changeover set for DPX circuit
breakers consists of support plates
equipped with a rocking mechanical
interlock on which the circuit breakers in their different versions are
fixed.
Standard mechanical interlocks
All fixed version DPX circuit
breakers with front or rear
terminals, except DPX 125 circuit
breakers, may be equipped with
standard mechanical interlock.
They may be equipped with remote
controls or with rotary handles.
Selection
Cat. nos.
0261 93
0261 94 0264 01
0264 02
0264 08
0264 09
0264 10
72
Description Microprocessor Control Box - Standard
Microprocessor Control Box - Advanced
Mechanical interlock for two DPX 160 circuit breakers
Mechanical interlock for two DPX 250 ER circuit breakers
Mechanical interlock for two DPX 250 circuit breakers
Mechanical interlock for two DPX 630 circuit breakers
Mechanical interlock for two DPX 1250 or DPX 1600 circuit breakers (factory assembled only)
■ Ready to Install ATS
Cat. nos. Type
Breaking Primary Secondary cap
MCCB
MCCB
DPX 250 6253 81
ATS
Thermal - magnetic
250 Amps
36kA
0253 49
0253 49
6253 82
Thermal - magnetic
250 Amps
70kA
0253 73
0253 73
6253 83
Micropro- cessor
250 Amps
70kA
0254 23
0254 23
Cat. nos. Type
Breaking Primary Secondary cap
MCCB
MCCB
DPX 630 6253 84
ATS
Thermal - magnetic
630 Amps
36kA
0255 40
0255 40
6253 85
Thermal - magnetic
630 Amps
70kA
0255 60
0255 60
6253 87
Micropro- cessor S1
630 Amps
36kA
0256 07
0256 07
6253 88
Micropro- cessor S1
630 Amps
70kA
0256 15
0256 15
6253 89
Micropro- cessor S2
630 Amps
36kA
0256 32
0256 32
6253 90
Micropro- cessor S2
630 Amps
70kA
0256 40
0256 40
6253 91
Micropro- cessor Sg
630 Amps
36kA
0256 57
0256 57
6253 92
Micropro- cessor Sg
630 Amps
70kA
0256 65
0256 65
Note : Arrangement to supply the recommended voltage to the microprocessor control box
should be made in the panel.
DPXTM
automatic transfer switch (continued)
■ Dimensions
Microprocessor control box
2 DPX 250 circuit breakers
140
105
52.5
330
47
30
35 35
70
80
172
300
108.75
170
162
101.5
173.5
107
157
35 35
10
35
200
200
200
122
108.75
173.5
105
11.5
70
70
2 DPX 250 circuit breakers with remote control
DPX 250 ready to install ATS
225
50
554
6
DIA
NO 11
S
225
37
550
225
50
130
177
4
DIA
NO 21
S
75
504
40
183
150
225
58.5
30
278.5
319
24.5
50
550
127
320
45 40
B
57
222
Y
65
66
270
560
530
100
300
R
80
25
LEGRAND 24 PIN
CONNECTOR
530
140
270
N
80
9
IA OS
N
10
560
22
140
65
D
66
72
72
70
C1
157
92.5
MCB
330
N R Y B
N R Y B
1 inch = 25.4 mm
Note : For all details on installation, please refer to the detailed instruction catalogue.
50
73
DPXTM
automatic transfer switch (continued)
2 DPX 630 circuit breakers
2 DPX 630 circuit breakers with remote control
DPX 630 Ready to Install ATS
604
75
6
DIA
NO 11
S
225
225
Y
B
DIA
92
9
10
72
S
NO
80
80
80
80
C1
66
183
50
400
600
278.5
335
225
225
32
504
40
183
75
130
177
45 40
B
58.5
75
30
Y
102
400
24.5
100
LEGRAND 24 PIN
CONNECTOR
R
52
256
560
530
560
530
N
25
150
12
330
183
360
63
37
R
70
N
157
B
D
4 IA 2
NO 1
S
Y
35
R
MCB
N
2 DPX 1250 or 2 DPX 1600 circuit breakers with remote control (factory assembled)
74
1 inch = 25.4 mm
Note : For all details on installation, please refer to the detailed instruction catalogue.
50