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Cooper Bussmann Electronics Short-Circuit Current Rating User Manual

Page 3

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Use this table to initiate the process of identifying the short-circuit current rating of your
components and devices in power circuits. For further information contact your local
Cooper Bussmann sales engineer, Cooper Bussmann Application Engineering,
or visit www.cooperbussmann.com.

Supply Disconnect and OCPD

Feeder Circuit OCPD and Components

Branch Circuit OCPD and Components

*Class CC, J, T, R, and L UL248 Branch Circuit Type Fuses.
**When used in conjunction with Class CC, J, T, R, and L UL248 Branch Circuit Type Fuses.
***50HP or less 480V

+Combination Rating is used for Sweep 1.
For Sweep 2 IR=5kA (Default Value)

UL98 Non-Fusible

Disconnect

Switches

UL1429 Pullout

Molded Case Switch

UL98 Fusible

Disconnect

Switches

UL489 Circuit

Breakers

Branch Circuit

Fuses

UL98 Non-Fusible

Disconnect

Switches

Po

wer Distrib

ution

Blocks

Fuse Holder

UL98 Fusible

Disconnect

Switches

UL489 Circuit

Breakers

UL98 Fusible

Disconnect

Switches

Branch Circuit

Fuses

Branch Circuit

Fuses

UL98 Non-Fusible

Disconnect

Switches

200kA*

UL489 Circuit

Breakers

5kA

200kA*

10kA**

Magnetic Motor

Star

ter

5kA***

Type E

Self

Pr

otected

Star

ter

5kA***

5kA

Instantaneous T

rip

Circuit

Breakers

+

Molded Case

Switch

200kA*

5kA

200kA*

10kA**

10kA

200kA*

200kA*

5kA

200kA*

10kA**

10kA

5kA