Warning!

This information should only be used as a selection guide. The use of a Miniature Circuit

Breaker in an application with a certain Trip-Characteristic always requires prototype

testing! It is the responsibility of the circuit design engineer to select the appropriate

Miniature Circuit Breaker for his specific application.

*The value of each characteristic is shown vertically beneath its corresponding heading.

Characteristic Trip Boundaries

Trip-Characteristics*

Type

Applications

C-Characteristics

D-Characteristics

Thermal Trip

Lighting

Control

Circuits

Wiring

Protection

Business

Equipment

Appliances

Transformers

Power

Supplies

Heaters

Must not

Trip>100ms

Must Trip

<1hr

Must not

Trip>100ms

Must Trip

at 100ms

Magnetic Trip

Low

Inrush

High

Inrush

Motors

Reactive

Load

1.05xRC

1.3xRC

5xRC

10xRC

1.05xRC

1.3xRC

10xRC

16xRC

1.05xRC

1.3xRC

5xRC

10xRC

1.05xRC

1.3xRC

10xRC

16xRC

AC

AC

DC

DC

14.5mm (0.57 in.)

17.5mm (0.69 in.)

6.5mm

(0.26 in.)

44mm (1.73 in.)

60mm (2.36 in.)

35mm (1.38 in.)

52.5mm (2.07 in.)

14.5mm (0.57 in.)

17.5mm (0.69 in.)

35mm (1.38 in.)

14.5mm (0.57 in.)

17.5mm (0.69 in.)

2

0.4

1

4

10

1

4

10

40

60

34

6 8 10 16 20

Multiple of Rated Current

C

C

D

D

CD

TimeversusCurrentTripCurve

For the exact trip curve,

please refer to page 56.

1 pole

2 pole

3 pole

Dimensionsinmm

sideview

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