Grieve Corporation ATQR User Manual

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:

Time Delay

➤

Best Choice for Small

➤

Transformer Protection
Most Current-Limiting

➤

APPLICATIONS:

Control Transformers

➤

Solenoids

➤

Inductive Loads

➤

Lighting, Heating &

➤

General-purpose Loads

A 16

A 16

Ratings

AC: 1/10 to 30A

➤

600VAC, 200kA I.R.

DC: 1/10 to

➤

30A300VDC,
100kA I.R.

Approvals

UL Listed to

➤

Standard 248-4

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 CATALOG AMPERE CATALOG AMPERE CATALOG AMPERE CATALOG
RATING NUMBER RATING NUMBER RATING NUMBER RATING NUMBER

1/10 ATQR1/10 8/10 ATQR8/10 2-8/10 ATQR2-8/10 7-1/2 ATQR7-1/2
1/8 ATQR1/8 1 ATQR1 3 ATQR3 8 ATQR8
3/16 ATQR3/16 1-1/8 ATQR1-1/8 3-2/10 ATQR3-2/10 9 ATQR9
2/10 ATQR2/10 1-1/4 ATQR1-1/4 3-1/2 ATQR3-1/2 10 ATQR10
1/4 ATQR1/4 1-4/10 ATQR1-4/10 4 ATQR4 12 ATQR12
3/10 ATQR3/10 1-1/2 ATQR1-1/2 4-1/2 ATQR4-1/2 15 ATQR15
4/10 ATQR4/10 1-6/10 ATQR1-6/10 5 ATQR5 17-1/2 ATQR17-1/2
1/2 ATQR1/2 1-8/10 ATQR1-8/10 5-6/10 ATQR5-6/10 20 ATQR20
6/10 ATQR6/10 2 ATQR2 6 ATQR6 25 ATQR25
3/4 ATQR3/4 2-1/4 ATQR2-1/4 6-1/4 ATQR6-1/4 30 ATQR30
2-1/2 ATQR2-1/2 7 ATQR7

A

A

Recommended ATQR Class CC Primary Fuses For
Single Phase Control Transformers

TRANS

VA

25

50

75

100

150

200

250

PRIMARY

VOLTS

600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120

FLA

0.04

0.05

0.10

0.12

0.21

0.08

0.10

0.21

0.24

0.42

0.13

0.16

0.31

0.36

0.63

0.17

0.21

0.42

0.48

0.83

0.25

0.31

0.63

0.72

1.25

0.33

0.42

0.83

0.96

1.67

0.42

0.52

1.04

1.2

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

600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208
120
600
480
240
208

600
480
240
600
480

FLA

0.50

0.63

1.25

1.44

2.5

0.83

1.04

2.08

2.40

4.17

1.25

1.56

3.13

3.61

6.25

1.67

2.08

4.16

4.81

8.33

2.50

3.13

6.25

7.21

12.5

3.33

4.17

8.33

9.62

5.00

6.25

12.5

8.33

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+*

Dimensions

Recommended Fuse Blocks for Class CC Fuses

Screw

with Double

Quick

Connects

Number

of

Poles

ULTRASAFE™

Indicating

Fuse

Holder

ADDER 30310R 30320R 30350R
1 USCC1I 30311R 30321R 30351R
2 USCC2I 30312R 30322R 30352R
3 USCC3I 30313R 30323R 30353R

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

Pressure Plate

with Double

Quick

Connects

Copper

Box

Connector

A 17

A 17