5 X 20 mm cartridge fuses rated for class 1 Division 2 applications

[bhentges]

From NEC 501.115(B)(3):

"For the protection of motors, appliances, and lamps...fuses shall be permitted if they are within general purpose enclosures, and if they are of a type in which the operating element is immersed in oil ..... or the fuse is a nonindicating, filled, current-limiting type."​

From NEC 501.105(B)(5):

"...fuses for overcurrent protection of instrument circuits not subject to overloading in normal use shall be permitted to be mounted in general purpose enclosures if each such fuse is preceded by a switch complying with 501.105(B)(1)."

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I can find a few different fused term blocks rated to go in a class 1 div 2 area but no fuses. Has anybody figured out what 5 x 20 cartridge fuses are certified to go in a class 1 division 2 area? As Per NEC501.115. If not, Is there any way around it other than using a breaker?

 

[Dennis Alwon]

Check out this link from little fuses
http://www.littelfuse.com/~/media/f...littelfuse-fuses-nec-class-1-division-2-c.pdf

Dear Littelfuse customer,

In regards to fuse protection of motors, appliances and lamps in Class 1 Div 2 Locations (Groups A-D), Section501.115(B)(3) of the 2005 National Electrical Code states that fuses can be used within general-purpose enclosures ifthey are a nonindicating, filled, current limiting type. This letter is to inform you that the following fuses are anonindicating, filled and current limiting type, which meets the requirements of NEC section 501.115(B)(3).

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