Cooper Bussmann Electronics Short-Circuit Current Rating manual Supply Disconnect and Ocpd

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

	Circuit		Circuit	UL98 Fusible	-Fusible	UL1429 Pullout	Molded Case	Switch
Branch		UL489			UL98 Non
Fuses		Breakers		DisconnectSwitches	DisconnectSwitches
200kA*		5kA		200kA*	10kA**	10kA	5kA

Feeder Circuit OCPD and Components

	Circuit		Circuit	UL98 Fusible	-Fusible		Distribution	Fuse Holder
Branch		UL489			UL98 Non	Power
Fuses		Breakers		DisconnectSwitches	DisconnectSwitches	Blocks
200kA*		5kA		200kA*	10kA**	10kA		200kA*

Branch Circuit OCPD and Components

Circuit			-Fusible	Motor			Trip
	Circuit	Fusible			ESelf	Case	InstantaneousCircuitBreakers
			Non
BranchFuses	UL489Breakers	UL98Disconnect	UL98DisconnectSwitches	MagneticStarter	TypeProtectedStarter	MoldedSwitch
		Switches
200kA*	5kA	200kA*	10kA**	5kA***	5kA***	5kA	+

*Class CC, J, T, R, and L UL248 Branch Circuit Type Fuses.	+Combination Rating is used for Sweep 1.
**When used in conjunction with Class CC, J, T, R, and L UL248 Branch Circuit Type Fuses.	For Sweep 2 IR=5kA (Default Value)
***50HP or less 480V