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Percentage of Rated Current vs Trip Time in Seconds at +25°C (Vertical Mount)

Frequency

Delay

100%

125%

150%

200%

400%

600%

800%

1000%

400 Hz

40

No Trip

May Trip

May Trip

090 Max

.060 Max

.050 Max

.040 Max

.035 Max

41

No Trip

May Trip

.2 to 9

.09 to 3

02 to .6

.006 to .3

.003 to .2

.003 to .15

42

No Trip

May Trip

3 to 80

1 to 25

.06 to 4

.01 to 1.5

.004 to .6

.003 to .3

400

No Trip

May Trip

20 to 900

6 to 250

.2 to 45

.01 to 6

.003 to .9

.003 to .5

DC

51*

No Trip

.500 to 16

.3 to 5

.13 to 1.5

.03 to .2

.005 to .1

.003 to .05

.003 to .025

52*

No Trip

7 to 100

3 to 40

.620 to 15

.12 to 2.5

.003 to .5

.003 to .05

.003 to .025

59*

No Trip

.120 Max

.073 Max

.038 Max

.021 Max

.017 Max

.017 Max

.017 Max

500

No Trip

70 to 800

25 to 300

10 to 100

1.2 to 20

.007 to 5

.004 to .65

.003 to .1

50/60 Hz

61

No Trip

.700 to 15

.3 to 4

.1 to 1.3

.02 to .25

.006 to .13

.003 to .07

.003 to .04

62

No Trip

12 to 180

6 to 70

2 to 25

.15 to 3.5

.005 to .3

.004 to .13

.004 to .04

69

No Trip

.120 Max

.073 Max

.038 Max .

.021 Max

.017 Max

.017 Max

.017 Max

600

No Trip

50 to 800

20 to 300

5.5 to 110

.3 to 17

.004 to .5

.004 to .5

.004 to .1

Notes: All trip times and trip currents are specified with the protector mounted in the normal vertical position at ambient temperature of 25 C.

Breakers do not carry current prior to application of overload.

*CPA type units are available only with 51, 52 and 59 delays.

DELAY CURVES & SPECIFICATIONS

A choice of delays is offered for DC, 50/60Hz and 400Hz applications.

Delays 40, 59 and 69 provide fast acting, instantaneous trip and are often used to protect sensitive electronic equipment (not recommended where a known

inrush exists).

Delays 41, 51 and 61 have a short delay for general purpose applications.

Delays 42, 52 and 62 are long enough to start certain types of motors and most transformer and capacitor loads.

Delays 400, 500 and 600 are long delays for special motor applications.

1

9001 000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

.1

10

0

125

150200

3004

00

5006

00

7008

00

DELAY 51

100

1

9001 000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

.1

10

01

00

125

1502 00

3004

00

5006

00

7008

00

DELAY 52

DELAY 59

900

1000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

.1

1

10

01

00

125

1502 00

3004

00

5006

00

7008

00

1

9001

000

PERCENT OF RATED CURRENT

.001

10000

.01

100

1000

.1

10

0

125

1503

00

4005

00

6007

00

800

DELAY 500

100

200

DC Delay Curves (typ)