Cooper Bussmann Electronics Short-Circuit Current Rating Скачать руководство пользователя страница 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

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

otected

Star

ter

5kA***

5kA

Instantaneous T

rip

Circuit

Breakers

Molded Case

Switch

200kA*

5kA

200kA*

10kA**

10kA

200kA*

5kA

200kA*

10kA**

10kA

5kA

Содержание Electronics Short-Circuit Current Rating

Страница 1: ...Simplified Guide To Understanding Short Circuit Current Rating F I N D I T F I X I T F O R G E T I T ...

Страница 2: ... How Is SCCR Determined For meter disconnect switches and motor controllers this withstand level or SCCR is often determined by product testing For assemblies the marking can be determined through product listing or by an approved method With the release of the UL508A Industrial Control Panel standard an industry method is now available Any method used whether UL508A or another approved method sho...

Страница 3: ...d e d C a s e S w i t c h U L 9 8 F u s i b l e D i s c o n n e c t S w i t c h e s U L 4 8 9 C i r c u i t B r e a k e r s B r a n c h C i r c u i t F u s e s U L 9 8 N o n F u s i b l e D i s c o n n e c t S w i t c h e s P o w e r D i s t r i b u t i o n B l o c k s F u s e H o l d e r U L 9 8 F u s i b l e D i s c o n n e c t S w i t c h e s U L 4 8 9 C i r c u i t B r e a k e r s U L 9 8 F u ...

Страница 4: ...h associated wiring terminal blocks pilot lights and similar components Interrupting Rating The highest current at rated voltage that a device is intended to interrupt under standard test conditions Short Circuit Current Rating The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected without sustaining damage exceeding the defined accep...

Страница 5: ...mbly short circuit current rating they can also provide enhancements to your design in the areas of flexibility of installation increased workplace safety and reliable protection through the life of your equipment These enhancements take care of the hassle associated with equipment with limited ratings so you can FORGET IT Benefits of Using Cooper Bussmann Current Limiting Fuses Straight Voltage R...

Страница 6: ... or will call Customers pay only standard price for the circuit protection device rush freight charges and a modest emergency fee for this service Emergency and after hours orders should be placed through the Customer Satisfaction Team Call 8 00 a m 4 30 p m Central Time 636 527 3877 After hours 314 995 1342 Application Engineering Application Engineering assistance is available to all customers T...

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