These cartridge fuses are 23% more energy-efficient and offer the ideal time delay performance. Their dual-element feature allows closer sizing to load for excellent protection of motors and transformers. These class RK5 fuses with a 200 kA interrupting rating can be used in a broad range of applications. When sized correctly, they help protect motors from burnout caused by overloads or single phasing. The time delay feature allows the initial startup current surge for typical motors to pass, but opens prior to motor burnout when longer, dangerous overloads are present. In addition, the dual-element design opens in as little as 0.004 secs if the fuse experiences short circuit conditions. All fuses are UL listed Class R (IR: 200 kA).
Dual-element feature provides the ideal time delay performance, allowing closer sizing and excellent protection of motors and transformers
Dual-element feature provides the ideal time delay performance, allowing closer sizing and excellent protection of motors and transformers
Closer sizing allows for smaller fuses and less costly switches
Provides motor overload, ground fault and short circuit protection
Helps protect motors against burnout from overloads and 1-phase when sized properly
Offers a 10 secs time delay at 5 times the rated current
The time delay feature makes it possible to use fuse amp ratings that are much smaller than those of non-time delay fuses
Provides current limitation to help protect downstream components from high fault currents
Gives motor running backup protection to motors without extra costs
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
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