ICP-S Technical Manual

Overcurrent Protection Elements

Rev.A

4/13

4. Selection Flowchart

Type of steady-state current?

DC

No

Yes

No

No

Yes

Yes

Pulse

Surge current

included

Inrush current

included

Check with the I

Change the ICP model

to satisfy the condition.

Lower the

open-circuit voltage.

Change the ICP model to

satisfy the condition.

Does the steady-state

current not exceed the rated

current of the ICP?

Is the rated voltage (i.e., the

open-circuit voltage when the ICP

breaks the current) 50 V or below?

Is the breaking current (the maximum

abnormal current) within a range

of 2x to 10x of the ICP's rated current?

The selection is OK.

ICP-S0.5

ICP-S0.7

ICP-S1.0

ICP-S1.2

0.5

0.7

1.0

1.2

1.0 to 5.0

1.4 to 7.0

2.0 to 10.0

2.4 to 12.0

TYPE

Rated current (A)

Breaking current (A)

List of ICP-S Models

how the life of the ICP-S is influenced by heat cycling or mechanical fatigue caused by repetitive

current pulses.