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 overcurrent protection. These fuses will override normal equipment current surges to reduce unnecessary fuse openings. Have moderate current limitation.

Bussmann Time Delay Fuse, Series: ECNR, 250 VAC, 70 A, Class: RK5, 200 kA Interrupt, 10 sec Minimum at 500% Rated Current Response, Dual Element, Blade End Connection, 5.88 in L, 1.06 in Dia

• True dual-element construction allows sizing of 125% A full load for motor backup protection
• Superior overload and cycling capabilities
• Provides motor overload, ground fault and short circuit protection
• Helps to protect motors against burnout from overloads and also from one-phasing on three-phase systems
• Current limiting provides component short circuit protection
• Simplifies and improves blackout prevention
• 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 an overload which is five-times greater than the ampere rating of the fuse for a minimum of 10 sec