Bussmann FRS-R-25 Class RK5 Fuse, 25 A, Non-indicating, Ferrule x Ferrule, 20 kAIC at 300 Vdc

MPN: FRS-R-25
UPC: 051712508339
PPN: BUS-FRS-R-25

$15.28

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Description

Class RK5 Fuse, 25 A, Non-indicating, Ferrule x Ferrule, 20 kAIC at 300 Vdc

Features

Provides superior overcurrent protection for inductive 3-phase motor branches, power panelboards, and industrial control circuits, combining high-voltage short-circuit clearing and thermal overload defense in a single cartridge.
Featuring an advanced dual-element, slow-blow design, this fuse provides 10 second time-delay threshold at 500% of its rated current load. This specialized temporal buffer allows heavy industrial motor startups and high-inrush control transformers to engage smoothly without blowing the fuse, preventing disruptive operational downtime while maintaining strict safety protection against sustained overloads.
Built to handle severe grid anomalies safely, the fuse delivers an exceptional ultimate interrupting capacity (IR) rated at 200 kA RMS Symmetrical at 600 V AC, and up to 20 kA at 300 V DC. This massive fault tolerance ensures immediate containment of high-energy short circuits, protecting upstream distribution equipment and sensitive downstream instrumentation from catastrophic arc damage.