SMARTSPOT INDICATOR AMP-TRAP 2000®
AJT
Time Delay/Class J
SMARTSPOT® WITH Maximum circuit PROTECTION
Amp-trap 2000® SmartSpot® AJT fuses now
provide a visual open fuse indicator. With advanced
material technology added to the existing product
line the AJT fuse provides IEC Type “2” (No Damage)
protection to main, feeder, and branch circuits, for
all types of loads — yet, they require only half the
mounting space needed for 600VAC Class RK fuses.
AJT’s time delay characteristics for handling typical
in-rush currents, its current limiting ability.
Features/Benefits
HIGHLIGHTS:
APPLICATIONS:
➤ Smart Spot Indicator
➤ Time Delay
➤ Highly Current Limiting
➤ Arc Flash Mitigating
➤ DC Ratings
➤ Optional Mechanical Indicator (70 to 600A
fuses)
➤ Motor Circuits
➤ Mains
➤ Feeders
➤ Branch Circuits
➤ Lighting, Heating &
General Loads
➤ Transformers
➤ Control Panels
➤ Circuit Breaker Back-up
➤ Bus Duct
➤ Load Centers
➤ Note: See Motor Fuse
Applications Tables on
page L9
A
➤ Solid State SmartSpot Indicator
➤ Time delay for motor starting and transformer inrush ➤ 300kA interrupting rating - self-certified,
UL witnessed tests
➤ Extremely current limiting for low peak let-thru current
➤ Most current limiting UL class fuse
➤ Recommended for Arc Flash energy reduction
➤ Small footprint requires less mounting space and
allows smaller, more economical fuse blocks
➤ Easy 2-to-1 selectivity for prevention of nuisance
shutdowns
➤ Unique Class J dimensions prevent replacement errors
➤ High-visibility orange label gives instant recognition
➤ Metal-embossed date and catalog number for
traceability and lasting identification
➤ Fiberglass body provides dimensional stability in harsh
industrial settings
➤ High-grade silica filler ensures fast arc quenching ➤ Optional EI Indicator/Switch mount for AJT70 to
600 open fuse indication
Ratings
➤ AC: 1 to 600A
600VAC, 200kA I.R.
(self certified for 600VAC, 300kA I.R.,
UL witnessed)
DC: 1 to 600A
500VDC, 100kA I.R.
Approvals
AJT (1-600):
➤ UL Listed to
Standard 248-8 File E2137
➤ DC Listed to UL
Standard 248
➤ CSA Certified to
Standard C22.2
No. 248.8
➤ IEC 269-2-1
AJT (70-600) EI:
➤UL Listed to File E60314
➤DC Tested to UL
Standard 248
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class J Fuses Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AJT1
AJT1-1/4
AJT1-1/2
AJT1-6/10
AJT1-8/10
AJT2
AJT2-1/4
AJT2-1/2
AJT2-8/10
AJT3
AJT3-2/10
AJT3-1/2
AJT4
4-1/2
5
5-6/10
6
6-1/4
7
8
9
10
12
15
17-1/2
20
AJT4-1/2
AJT5
AJT5-6/10
AJT6
AJT6-1/4
AJT7
AJT8
AJT9
AJT10
AJT12
AJT15
AJT17-1/2
AJT20
25
30
35
40
45
50
60
70
80
90
100
110
AJT25
AJT30
AJT35
AJT40
AJT45
AJT50
AJT60
AJT70
AJT80
AJT90
AJT100
AJT110
125
150
175
200
225
250
300
350
400
450
500
600
AJT125
AJT150
AJT175
AJT200
AJT225
AJT250
AJT300
AJT350
AJT400
AJT450
AJT500
AJT600
1
1-1/4
1-1/2
1-6/10
1-8/10
2
2-1/4
2-1/2
2-8/10
3
3-2/10
3-1/2
4
AJT
Recommended Fuse Blocks
With Box Connectors for
Amp-trap® Class J Fuses
Fuse Catalog Number
Ampere 600V OR LESS
Rating
1 Pole 3 pole
US3J1I US3J3I
0-30
31-60
US6J1I US6J3I
61-100 61036J 61038J
101-200 62001J 62003J
201-400 64031J 64033J
401-600 6631J
6633J
A variety of pole configurations and termination
provisions is available.
Note: Indicator Not Available (1-7A)
1-60A
70-600A
Dimensions
AMPERE A B C D E F G H
RATING
In.
mm
In.
mm
In.
mm
In.
mm
In.
mm
In.
mm
In.
mm
In.
mm
1-30
2-1/4
57
13/16
21
-
-
-
-
-
-
-
-
-
-
-
31-60
2-3/8
60 1-1/16 27
-
-
-
-
-
-
-
-
-
-
-
61-100
4-5/8 117 1-1/16 27
1/8
3.2
3/4
19
1
25
3-5/8 92
3/8
10
9/32
7
101-200
5-3/4 146 1-5/8
41
3/16
4.8
1-1/8
29
1-3/8
35
4-3/8 111
3/8
10
9/32
7
201-400
7-1/8 181 2-1/8
54
1/4
6.3
1-5/8
41
1-7/8
48
5-1/4 133
17/32
14
13/32
10
401-600
8
203 2-1/2
64
3/8
9.5
2
51
2-1/8
54
6
152
11/16
18
17/32
13
Optional Indicator/Microswitch Mount (EI) dimensions:
Note: Fuses with the EI option are designed
to work with the AOS-S or AOS-Q add-on
Switch, which is ordered separately.
See page J7 for details.
A
CATALOG NUMBER
A
AJT(70-100)-EI
2.80
(71.0)
AJT(110-200)-EI
3.22
(81.8)
AJT(225-400)-EI
3.24
(82.2)
AJT(450-600)-EI
3.61
(91.8)
A
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class J Fuses AJT
Time in Seconds
Melting Time – Current Data, 600V Fuses – AJT1 to 600
Current in Amperes
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data – AJT30 to 600, 600 Volts AC
Note: See Motor Fuse Application Tables
on page L9.
Available Current in RMS Symmetrical Amperes
A
AMP-TRAP 2000®
A4BQ Time Delay/Class L Put the highest current-limitation...
at your service.
Amp-trap 2000® A4BQ fuses are 20% more current
limiting than any other Class L fuse on the market.
When correctly coordinated, they bring a superior
level of protection to service entrance equipment.
Downstream circuit components have maximum
protection against short circuit let-thru current.
A4BQ’s built-in, 4-second time delay characteristic
(at 500% of rated current) accommodates harmless
inrush currents with no nuisance opening.
Features/Benefits
HIGHLIGHTS:
APPLICATIONS:
➤ Time Delay
➤ Industry’s Most
Current-Limiting
Class L Fuse
➤ Arc Flash mitigating
➤ Pure Silver Elements
➤ AC & DC Rated
➤ Mains, Feeders
➤ Large Motors
➤ Lighting, Heating &
General Loads
➤ Circuit Breaker Back-up
➤ DC Rated: UPS DC
➤ Links, Battery Disconnects, Other DC Applications
*Please contact factory for special trigger actuator
A
➤ Fastest operation under short circuit conditions: Let-thru currents are typically 20% lower, with a corresponding let-thru energy (clearing I2t) up to 40% lower than the next fastest Class L fuse
➤ Time delay for high inrush loads such as motors and
transformers, without nuisance opening
➤ 300kA interrupting rating - self-certified, UL witnessed tests
➤ Most current limiting for lowest peak let-thru current;
even at fault currents up to 300kA
➤ Recommended for Arc Flash energy reduction
➤ Pure silver links ensure lowest let-thru current and
longer fuse life
➤ Easy 2-to-1 selectivity for prevention of nuisance
shutdowns and “blackouts”
➤ Rejection-style design prevents replacement errors ➤ High-visibility orange label gives instant recognition
➤ Reduced inventory because A4BQ can replace all older types of Class L fuses now in service
➤ Metal-embossed date and catalog number for traceability
and lasting identification
➤ Fiberglass body provides dimensional stability in harsh industrial settings
➤ High-grade silica filler ensures fast arc quenching
Ratings
Approvals
➤ AC: 100 to 6000A
600VAC, 200kA I.R.
(self certified for
600VAC, 300kA I.R.,
UL witnessed) 4second delay at 500%
rating
➤ UL Listed to Standard
248-10 (601-6000A)
File E2137
➤ DC: 601 to 3000A
500VDC, 100kA I.R.
➤ CSA Certified to
Standard C22.2 No. 248.10
(601-6000A)
➤ DC Listed to UL
Standard 248
(601-3000A)
A
AMP-TRAP 2000®
Time Delay/Class L Fuses A4BQ
Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
A4BQ100
A4BQ150
A4BQ200
A4BQ250
A4BQ300
A4BQ350
A4BQ400
A4BQ450
500
600
601
650
700
750
800
900
A4BQ500
A4BQ600
A4BQ601
A4BQ650
A4BQ700
A4BQ750
A4BQ800
A4BQ900
1000
1200
1350
1400
1500
1600
1800
1900
A4BQ1000
A4BQ1200
A4BQ1350
A4BQ1400
A4BQ1500
A4BQ1600
A4BQ1800
A4BQ1900
2000
2500
2501
3000
3500
3800
4000
5000
6000
A4BQ2000
A4BQ2500
A4BQ2501
A4BQ3000
A4BQ3500
A4BQ3800
A4BQ4000
A4BQ5000
A4BQ6000
100
150
200
250
300
350
400
450
Dimensions
AMPERE
RATING
3001-4000A
100-800A
A In. mm
2001-3000A
801-2000A
B In. mm
C In. mm
D In. mm
In.
E
mm
100-600
8-5/8
219
2
51
5/16
8
1-5/8
41
2-13/32
61
601-800
801-1200
1201-1600
1601-2000
2001-2500
2501-3000
3001-4000
4001-5000
5001-6000
8-5/8
10-3/4
10-3/4
10-3/4
10-3/4
10-3/4
10-3/4
10-3/4
10-3/4
219
273
273
273
273
273
273
273
273
2-1/2
2-1/2
3
3-1/2
4-1/2
5
5-3/4
6-1/4
7-1/8
63
63
76
89
114
127
146
159
181
3/8
3/8
7/16
1/2
3/4
3/4
3/4
1
1
9
9
11
12
19
19
19
25
25
2
2
2-3/8
2-3/4
3-1/2
4
4-3/4
5-1/4
5-3/4
51
51
60
70
89
102
121
133
146
2-13/32
3-15/32
3-15/32
3-15/32
3-15/32
3-15/32
3-15/32
3-15/32
3-15/32
61
88
88
88
88
88
88
88
88
4001-6000A
Safety Note: Class L fuses are dimensioned for
one-way interchangeability. A Class L fuse of any
lower ampere rating can be substituted for a given
Class L fuse.
A4BQ (601 to 6000) Let-Thru Current in kilo-Amperes
Available Fault 601 800
1000 1200 1600 2000 2500 3000 4000 5000 6000 RMS AMPS RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip RMS Ip
10,000
15,000
7.4
8.3
17
19
8.7
10
20
23
10
12
23
27
10
13
23
30
10
15
23
35
10
15
23
35
20,000
25,000
30,000
35,000
40,000
50,000
60,000
80,000
100,000
150,000
200,000
9.1
9.8
10
11
12
13
13
14
16
18
20
21
23
24
25
27
29
30
33
36
41
45
11
12
13
13
14
15
16
17
19
21
24
25
27
29
30
32
34
36
40
43
49
54
13
13
14
15
16
17
18
20
22
25
27
29
31
33
35
37
40
42
46
50
57
63
14
15
16
17
18
19
20
23
24
28
31
33
35
37
39
41
44
47
52
56
64
71
17
18
20
20
21
23
25
27
29
33
37
39
42
45
47
49
53
57
62
67
77
84
20
22
23
24
25
27
29
32
34
39
43
46
50
53
56
58
63
67
73
79
90
100
10
15
23
35
10
15
23
35
10
15
20 46
25 58
29 66
30 69
31 72
34 78
36 83
40 91
43 98
49 112
53 123
20
25
30
35
36
39
41
45
49
56
61
46
58
69
81
83
89
94
104
112
128
141
20
25
30
35
40
48
51
57
61
70
77
23 10
35 15
46
58
69
81
92
111
118
130
140
160
176
20
25
30
35
40
50
60
67
72
82
90
23
35
10
15
23
35
46
58
69
81
92
115
138
153
165
189
208
20
25
30
35
40
50
60
77
83
94
104
46
58
69
81
92
115
138
176
190
217
239
The current limiting effect of A4BQ Class L fuses is presented in the table above. This table correlates actual fuse peak let-thru currents with equal value peak currents
reached in the first half cycle (worst case) of short circuits in unfused circuits. The let-thru current is expressed as “Apparent RMS Symmetrical Amperes” in order to be
more useful for practical applications. The currents are based on an assumed 15% power factor. Example: An A4BQ1200, when applied in a circuit with 40,000 RMS symmetrical amperes available, will limit that current during a short circuit, to an apparent 18,000 RMS symmetrical amperes. Under this condition, any equipment being protected would be subjected to only 18,000 RMS amperes.
A
AMP-TRAP 2000®
Time Delay/Class L Fuses A4BQ
A4BQ601 to 6000
Current in Amperes
Melting Time – Current Data, 600V Fuses
A
Time in Seconds
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data ­– A4BQ601 to 6000, 600 Volts AC
Available Current in RMS Symmetrical Amperes
A
SMARTSPOT INDICATOR AMP-TRAP 2000®
A2D & A6D Time Delay/Class RK1 Upgrade yesterday’s circuits to today’s
Type 2 protection.
Amp-trap 2000® SmartSpot® A2D, A6D fuses now
provide a visual open fuse indicator. With advanced
material technology added to the existing product line
the A2D, A6D fuses provide IEC Type “2” (No Damage) protection to main, feeder, and branch circuits,
for all types of loads — A2D, A6D’s time delay characteristics for handling harmless in-rush currents, its
current limiting ability and wide range of ratings (from
1 to 600 Amperes) — give excellent protection for all
your applications.
Features/Benefits
HIGHLIGHTS:
Applications:
➤ SmartSpot Indicator
➤ Time Delay
➤ Current Limiting
➤ Arc Flash mitigating
➤ Plated Terminals
➤ Motors
➤ Safety Switches
➤ Transformers
➤ Branch Circuit
Protection
➤ Disconnects
➤ Control Panels
➤ All General-purpose
Circuits
➤ Solid State SmartSpot Indicator
➤ Time delay for motor starting and transformer inrush
currents without nuisance opening
➤ 600VAC & 600VDC
➤ 300kA interrupting rating - self-certified,
UL witnessed tests
➤ Extremely Current Limiting for low peak let-thru current
➤ Recommended for Arc Flash energy reduction
➤ Easy 2-to-1 selectivity for prevention of nuisance shut
downs and “black outs”
➤ Rejection-style design prevents replacement errors
(when used with recommended fuse blocks)
➤ High-visibility orange label gives instant recognition
➤ Reduced inventory by taking the place of RK5, K,
and H fuses
➤ Metal-embossed date and catalog number for easier
traceability and lasting identification
➤ Fiberglass body provides dimensional stability in harsh
industrial settings
Ratings
➤ A2D AC: 1/10 to 600A
250VAC, 200kA I.R.
(self certified for
250VAC, 300kA I.R.,
UL witnessed) DC: 1/10 to 600A
250VDC, 100kA I.R.
➤ A6D AC: 1/10 to 600A
600VAC, 200kA I.R.
(self certified for
600VAC, 300kA I.R.)
DC: 1/10 to 600A
600VDC, 100kA I.R.
A
Approvals
➤ UL Listed to Standard
248-12 File E2137
➤ DC Listed to UL Standard 248
➤ CSA Certified to
Standard C22.2 No. 248.12
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class RK1 Fuses
A2D & A6D Standard Fuse Ampere Ratings, Catalog Numbers
Ampere Catalog Number Rating
250V
600V
Ampere Catalog Number Rating
250V
600V
1/10
15/100
2/10
3/10
4/10
1/2
6/10
8/10
1
1-1/8
1-1/4
1-4/10
1-6/10
1-8/10
A2D1/10R
A2D15/100R
A2D2/10R
A2D3/10R
A2D4/10R
A2D1/2R
A2D6/10R
A2D8/10R
A2D1R
A2D1-1/8R
A2D1-1/4R
A2D1-4/10R
A2D1-6/10R
A2D1-8/10R
A6D1/10R
A6D15/100R
A6D2/10R
A6D3/10R
A6D4/10R
A6D1/2R
A6D6/10R
A6D8/10R
A6D1R
A6D1-1/8R
A6D1-1/4R
A6D1-4/10R
A6D1-6/10R
A6D1-8/10R
3-1/2
4
4-1/2
5
5-6/10
6
6-1/4
7
8
9
10
12
15
17-1/2
2
2-1/4
2-1/2
2-8/10
3
3-2/10
A2D2R
A2D2-1/4R
A2D2-1/2R
A2D2-8/10R
A2D3R
A2D3-2/10R
A6D2R
A6D2-1/4R
A6D2-1/2R
A6D2-8/10R
A6D3R
A6D3-2/10R
20
25
30
35
40
45
Ampere Catalog Number
Rating
250V
600V
A2D3-1/2R A6D3-1/2R
A2D4R
A6D4R
A2D4-1/2R A6D4-1/2R
A2D5R
A6D5R
A2D5-6/10R A6D5-6/10R
A2D6R
A6D6R
A2D6-1/4R A6D6-1/4R
A2D7R
A6D7R
A2D8R
A6D8R
A2D9R
A6D9R
A2D10R
A6D10R
A2D12R
A6D12R
A2D15R
A6D15R
A2D17-1/2R A6D17-1/2R
A2D20R
A2D25R
A2D30R
A2D35R
A2D40R
A2D45R
A6D20R
A6D25R
A6D30R
A6D35R
A6D40R
A6D45R
50
60
70
75
80
90
100
110
125
150
175
200
225
250
A2D50R
A2D60R
A2D70R
A2D75R
A2D80R
A2D90R
A2D100R
A2D110R
A2D125R
A2D150R
A2D175R
A2D200R
A2D225R
A2D250R
A6D50R
A6D60R
A6D70R
A6D80R
A6D90R
A6D100R
A6D110R
A6D125R
A6D150R
A6D175R
A6D200R
A6D225R
A6D250R
300
350
400
450
500
600
A2D300R
A2D350R
A2D400R
A2D450R
A2D500R
A2D600R
A6D300R
A6D350R
A6D400R
A6D450R
A6D500R
A6D600R
A
Note: Indicator Not Available (1/10-7A)
0-60A
61-600A
Dimensions
A
AMPERE
RATING
In. 250V-A2D
0-30
2
31-60
3
61-100
5-7/8
101-200 7-1/8
201-400 8-5/8
401-600 10-3/8
600V-A6D
0-30
5
31-60
5-1/2
61-100
7-7/8
101-200 9-5/8
201-400 11-5/8
401-600 13-3/8
mm
B In. mm
C In. mm
D In. mm
E
In. mm
Recommended Fuse Blocks
With Box Connectors
for Amp-trap® Class RK1 Fuses
Fuse 51
76
149
181
219
264
9/16
13/16
1-1/16
1-9/16
2-1/16
2-9/16
14
21
27
40
53
66
-
-
1/8
3/16
1/4
1/4
-
-
3
5
6
6
-
-
3/4
1-1/8
1-5/8
2
-
-
19
28
41
51
-
-
1
1-3/8
1-7/8
2-1/4
25
35
48
57
127
139
200
244
295
340
13/16
1-1/16
1-5/16
1-13/16
2-9/16
3-1/8
21
27
34
46
66
80
-
-
1/8
3/16
1/4
1/4
-
-
3
5
6
6
-
-
3/4
1-1/8
1-5/8
2
-
-
19
28
41
51
-
-
1
1-3/8
1-7/8
2-1/4
25
35
48
57
A
Catalog Number
Ampere 250V 600V
Rating 1 Pole 3 pole
1 pole 3 pole
0-30
31-60
61-100
101-200
201-400
401-600
20306R
20606R
21036R
22001R
24001R
2631R
20308R
20608R
21038R
22003R
24003R
2633R
60306R
60606R
61036R
62001R
64001R
6631R
60308R
60608R
61038R
62003R
64003R
6633R
A variety of pole configurations and termination provisions
is available.
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class RK1 Fuses
A2D & A6D Current in Amperes
Melting Time – Current Data, 250V Fuses
A2D15 to 600
Time in Seconds
Current in Amperes
Melting Time – Current Data, 250V Fuses
A2D1/10 to 10
Time in Seconds
A 10
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class RK1 Fuses
A2D & A6D A6D15 to 600
Current in Amperes
Melting Time – Current Data,600V Fuses
A
Time in Seconds
Current in Amperes
Melting Time – Current Data, 600V Fuses
A6D1/10 to 8
Time in Seconds
A 11
SMARTSPOT INDICATOR AMP-TRAP 2000®
Time Delay/Class RK1 Fuses
A2D & A6D Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data ­– A2D30 to 600, 250 Volts AC
Note: See Motor Fuse
Application Tables page L9.
Available Current in RMS Symmetrical Amperes
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data ­– A6D30 to 600, 600 Volts AC
Available Current in RMS Symmetrical Amperes
A 12
AMP-TRAP 2000®
ATDR Time Delay/Class CC
THE BEST PROTECTION FOR TODAY’S SMALL MOTORS.
Amp-trap 2000® ATDR small-dimension fuses can
provide IEC Type 2 “no damage” protection to your
facility’s increasingly sensitive branch circuit components and small motors – minimizing the risk of
fault-related damage. ATDR Class CC fuses deliver
the best time delay characteristics in their class with
excellent cycling ability for small motor loads.
Features/Benefits
➤ Time delay for motor starting inrush currents without
nuisance opening
➤ Highly current limiting for low peak let-thru current
➤ Improved cycling ability for frequent motor starts/stops without nuisance fuse opening
➤ Rejection-style design prevents replacement errors (when used with recommended fuse blocks)
➤ High-visibility orange label ensures instant recognition, simplifies replacement
➤ Metal-embossed date and catalog number for
traceability and lasting identification
➤ Fiberglass body provides dimensional stability in harsh industrial settings
➤ High-grade silica filler ensures fast arc quenching and optimum current limitation
HIGHLIGHTS:
➤ Time Delay
➤ Best Choice for Small
Motor Protection
➤ Highly CurrentLimiting
➤ AC & DC Rated
Applications:
➤ Small Motors
➤ Contactors
➤ Lighting, Heating &
General Loads
➤ Branch Circuit Protector
Ratings
Approvals
➤ AC: 1/4 to 30A
600VAC, 200kA I.R. ➤ UL Listed to
Standard 248-4
File 2137
➤ DC: 1/4 to 30A
300VDC, 100kA I.R. ➤ CSA Certified to
Standard C22.2
No. 248.4
➤ DC Listed to
UL Standard 248
A 13
A
AMP-TRAP 2000®
Time Delay/Class CC Fuses
ATDR Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE CATALOG
RATING NUMBER
1/4
ATDR1/4
1/2
ATDR1/2
8/10
ATDR8/10
1
ATDR1
1-1/8
ATDR1-1/8 1-1/4
ATDR1-1/4
1-4/10 ATDR1-4/10 AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
1-1/2
1-6/10
1-8/10
2
2-1/4
2-1/2
2-8/10
ATDR1-1/2
ATDR1-6/10
ATDR1-8/10
ATDR2
ATDR2-1/4
ATDR2-1/2
ATDR2-8/10 3
3-2/10
3-1/2
4
4-1/2
5
5-6/10
ATDR3
ATDR3-2/10 ATDR3-1/2
ATDR4
ATDR4-1/2 ATDR5
ATDR5-6/10
6
6-1/4
7
7-1/2
8
9
10
ATDR6
ATDR6-1/4
ATDR7
ATDR7-1/2 ATDR8
ATDR9
ATDR10
12
15
17-1/2
20
25
30
ATDR12
ATDR15
ATDR17-1/2
ATDR20
ATDR25
ATDR30
Dimensions
Small Motor Fuse Protection,
600 Volts AC or Less
MOTOR ATDR RATING*
FULL LOAD
MINIMUM
NORMAL
AMPERES
DUTY
DUTY
.71 - .89
.90 - 1.19
1.20 - 1.34
1.35 - 1.79
1.80 - 2.25
2.26 - 2.69
2.70 - 2.90
1-1/4
1-6/10
2
2-1/2
3
4
4
1-6/10
2
2-1/2
3
4
5
6
2.91 - 3.20
3.21 - 3.75
3.76 - 4.50
4.51 - 5.34
5.35 - 5.69
5.70 - 6.70
6.71 - 7.79
7.80 - 8.88
8.89 - 11.1
11.2 - 13.3
13.4 - 15.2
5
5
6
8
10
12
12
15
17-1/2
20
25
6
7
8
10
12
12
15
17-1/2
20
25
30
Recommended Fuse Blocks for
Class CC Fuses
CATALOG NUMBER
Screw
ULTRASAFE™ Connector
Number Indicating w/ Double
of
Fuse
Quick
Poles
Holder
Connects
ADDER
1
USCC1I
2 USCC2I
3 USCC3I
* The National Electrical Code allows time-delay Class CC fuses to be
sized at up to 400% (maximum) of motor FLA, if needed.
A 14
30310R
30311R
30312R
30313R
Pressure
Plate
Connector
Copper
w/ Double
Box
Quick
Connector
Connects
30320R
30321R
30322R
30323R
30350R
30351R
30352R
30353R
AMP-TRAP 2000®
Time Delay/Class CC Fuses ATDR ATDR1/4 to 30
Current in Amperes
Melting Time – Current Data, 600V Fuses
A
Time in Seconds
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data ­– ATDR1/4 to 30, 600 Volts AC
Available Current in RMS Symmetrical Amperes
A 15
AMP-TRAP 2000®
ATQR Time Delay/Class CC
Take control of fault currents headed for your control transformer ATQR small-dimension fuses feature time delay
characteristics ideally suited for the high inrush
currents of control transformers, solenoids, and
similar inductive loads. The newest member of our
Amp-trap 2000® family of fuses - ATQR fuses
provide superior protection for the branch circuits
of electrical distribution systems.
Features/Benefits
➤ Time delay for control transformer inrush loads without
nuisance opening
➤ Highly current limiting for low peak let-thru current
➤ Rejection-style design prevents replacement errors (when used with recommended fuse blocks)
➤ High-visibility orange label ensures instant recognition, and simplifies replacement
➤ Metal-embossed date and catalog number for traceability and lasting identification
➤ Fiberglass body provides dimensional stability in harsh industrial settings
➤ High-grade silica filler ensures fast arc quenching and high current limitation
HIGHLIGHTS:
Applications:
➤ Time Delay
➤ Best Choice for Small
Transformer Protection
➤ Most Current-Limiting
➤ Control Transformers
➤ Solenoids
➤ Inductive Loads
➤ Lighting, Heating &
General-purpose Loads
Ratings
A 16
Approvals
➤ AC: 1/10 to 30A
600VAC, 200kA I.R.
➤ UL Listed to
Standard 248-4
➤ DC: 1/10 to
30A300VDC,
100kA I.R.
➤ DC Listed to UL Standard 248
➤ CSA Certified to
Standard C22.2
No. 248.4
AMP-TRAP 2000®
Time Delay/Class CC Fuses
ATQR Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE
RATING
CATALOG
NUMBER
1/10
ATQR1/10
1/8
ATQR1/8
3/16
ATQR3/16
2/10
ATQR2/10
1/4
ATQR1/4
3/10
ATQR3/10
4/10
ATQR4/10
1/2
ATQR1/2
6/10
ATQR6/10
3/4
ATQR3/4
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
AMPERE
RATING
CATALOG
NUMBER
8/10
1
1-1/8
1-1/4
1-4/10
1-1/2
1-6/10
1-8/10
2
2-1/4
2-1/2
ATQR8/10
ATQR1
ATQR1-1/8
ATQR1-1/4
ATQR1-4/10
ATQR1-1/2
ATQR1-6/10
ATQR1-8/10
ATQR2
ATQR2-1/4
ATQR2-1/2
2-8/10
3
3-2/10
3-1/2
4
4-1/2
5
5-6/10
6
6-1/4
7
ATQR2-8/10
ATQR3
ATQR3-2/10
ATQR3-1/2
ATQR4
ATQR4-1/2
ATQR5
ATQR5-6/10
ATQR6
ATQR6-1/4
ATQR7
7-1/2
8
9
10
12
15
17-1/2
20
25
30
ATQR7-1/2
ATQR8
ATQR9
ATQR10
ATQR12
ATQR15
ATQR17-1/2
ATQR20
ATQR25
ATQR30
Recommended ATQR Class CC Primary Fuses For
Single Phase Control Transformers
TRANS
VA
25
50
75
100
150
200
250
PRIMARY
VOLTS
FLA
600
0.04
480
0.05
240
0.10
208
0.12
120
0.21
600
0.08
480
0.10
240
0.21
208
0.24
120
0.42
600
0.13
480
0.16
240
0.31
208
0.36
120
0.63
600
0.17
480
0.21
240
0.42
208
0.48
120
0.83
600
0.25
480
0.31
240
0.63
208
0.72
120
1.25
600
0.33
480
0.42
240
0.83
208
0.96
120
1.67
600
0.42
480
0.52
240
1.04
208
1.2
120
2.08
ATQR
AMPS
1/10
1/10
2/10
1/4
4/10
1/4
1/4
4/10
1/2
6/10
1/4
3/10
1/2
3/4
1
3/10
4/10
6/10
1
1-1/2
1/2
1/2
1
1-1/2
2-1/2
1/2
6/10
1-1/2
2
3
6/10
1-1/8
2
3
4*
TRANS
VA
300
500
750
1000
1500
2000
3000
5000
PRIMARY
VOLTS
FLA
600
0.50
480
0.63
240
1.25
208
1.44
120
2.5
600
0.83
480
1.04
240
2.08
208
2.40
120
4.17
600
1.25
480
1.56
240
3.13
208
3.61
120
6.25
600
1.67
480
2.08
240
4.16
208
4.81
120
8.33
600
2.50
480
3.13
240
6.25
208
7.21
120
12.5
600
3.33
480
4.17
240
8.33
208
9.62
600
5.00
480
6.25
240
12.5
600
8.33
480
10.4
ATQR
AMPS
1-1/8
1-1/2
2-1/2
3
5*
1-1/2
2
4*
6*
10*
2-1/2
3
7*
8*
15*
3
4*
10*
12*
20*
5*
7*
10
20*
25*
8*
10*
20++*
20++*
12+*
15+*
30++*
20++*
25+*
A
Dimensions
Recommended Fuse Blocks for Class CC Fuses
Number
of
Poles
Screw
ULTRASAFE™
Indicating with Double
Quick
Fuse
Connects
Holder
ADDER
1 USCC1I
2 USCC2I
3 USCC3I
Pressure Plate
with Double
Quick
Connects
Copper
Box
Connector
30320R
30321R
30322R
30323R
30350R
30351R
30352R
30353R
30310R
30311R
30312R
30313R
Primary fuses - If primary FLA is less than 2 amps, fuse may be 300%
max. (500% for motor control). If primary FLA exceeds 2 amps but is
less than 9 amps, fuse may not exceed 167% of primary FLA unless
secondary protection is used, when it may be increased to 250%. Fuse
sizes shown are based on approx. 40 x FLA for .01 sec.
* Secondary protection is required for these ratings.
+ Fuse will withstand 30 x FLA for .01 second
++ Fuse will withstand 25 x FLA for .01 second
A 17
AMP-TRAP 2000®
Time Delay/Class CC Fuses
Melting Time-Current Data ATQR 3/16 to 1-8/10, 600 Volts
Time in Seconds
Maximum Instantaneous Peak Let-Thru Amperes
Peak Let-Thru Current Data–ATQR1/4 to 30, 600 Volts AC
Available Current in RMS Symmetrical Amperes
Current in Amperes
Time in Seconds
Melting Time-Current Data ATQR 2 to 30, 600 Volts AC
Current in Amperes
A 18
ATQR