Bussmann FRS-R-150 Class RK5 Dual Fuse, 150 A, 600 Vac, 300 Vdc, Non-indicating, 5 Inch Length

Description

Features

• Engineered with a robust 150-Amp rating and dual voltage capability (600 Vac / 300 Vdc), this heavy-duty cartridge fuse safely handles dense power distribution networks. By maintaining steady operational capacity under high-voltage thresholds, it eliminates costly downtime caused by premature or nuisance blowing in your main service switches and feeder circuits.
• Featuring an advanced dual-element design, this fuse provides a minimum 10-second time-delay at 500% of the rated current to absorb temporary inductive surges from large motors and transformers. This allows you to size the fuse closer to the equipment's actual full-load amperes, maximizing overcurrent protection while completely avoiding unnecessary trip-outs during machine startup.
• Designed as a standard Class RK5 fuse measuring 9.63 inches in length with a knife-blade termination style, it features the mandatory rejection slot built directly into the blade. This safety mechanism ensures a perfect, secure fit into any dedicated Class R fuse holder, physically preventing the accidental installation of lower-rated, non-rejection fuses that could compromise system safety.
• Boasting an exceptional interrupting rating of 200 kAIC Symmetrical at 600 Vac and 20 kAIC at 300 Vdc, this current-limiting fuse provides a critical barrier against massive electrical faults. It rapidly clears high short-circuit currents before they can travel downstream, safeguarding your expensive control panels, switchgear, and personnel from catastrophic arc-flash damage.
• Optimized for comprehensive branch-circuit protection, this Fusetron series fuse guards three-phase motors against devastating burnouts caused by overloads or single-phasing conditions. By deploying this cost-effective, non-indicating dual-element solution, you establish a reliable backup safety layer that eliminates the need for expensive auxiliary protective relays.

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Specifications