Edison's UL Class RK5 dual-element, time-delay fuses provide economical solutions to overcurrent protectioni. Available in both 250Vac and 600Vac, with 200kA RMS Sym interrupting ratings and sizes ranging from 0 to 600 amp.

Bussmann Time Delay Fuse, Current Limiting, Series: ECNR, Indicating/Non-Indicating: Non-Indicating, 600 A, 250 VAC/125 VDC, 200 kA Interrupt, Class: RK5, 10 s at 500% Response, Blade Terminal, Holder Mount, Cylindrical Body Type, Dual Element, 2.88 in Dia x 10.38 in L Body Size

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/PONC15_Catalog.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/PONC15_Catalog.pdf
• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/ECNR600_Specification_Sheet.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/ECNR600_Specification_Sheet.pdf
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• True dual element construction allows sizing of 125% FLA for motor backup protection
• Superior overload and cycling capabilities
• Current limiting provides component short circuit protection
• Provides motor overload, ground fault and short circuit protection
• Helps protect motors against burnout from overloads and single phasing when sized properly
• The time delay characteristics of these fuses typically allows them to be sized closer to the running ampacity of inductive loads to reduce cost and provide improved over current protection
• These fuses will override normal equipment current surges to reduce unnecessary fuse openings
• Dual element fuses can be applied in circuits subject to temporary motor overloads and surge currents to provide both high performance short circuit and overload protection
• The overload element provides protection against low level over current of overloads and will hold on inrush current which is five times greater than the ampere rating of the fuse for a minimum of 10 s
• 10 s minimum at 500% of ampere rating response time