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Mersen offers a line of reliable UL508 and UL98 fused and non-fused disconnect switches.

Tri-Onic RK5 current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits.

Fuse holders for Mersen's Class CC High Interrupting Rating Time Delay and Fast Acting compact fuses

Significantly more current-limiting than Class RK5, K and H fuses, Mersen’s Class RK1 fuses are ideal for upgrading your existing feeder and branch circuits to arc flash category “0”.

Fast-acting Class T fuses combine high current limitation with a super compact physical size. These small dimension fuses are the right fit…for a tight fit.

Mersen's Class CC High Interrupting Rating Time Delay and Fast Acting compact fuses, are ideal for protection of smaller motors, control circuits and control transformers up to 30A.

For heavier loads up to 6000A, Mersen's Class L fuses are industry's favorites for protection of inductive loads, service entrance equipment, feeder circuits, and circuit breakers

Fuse holders for Class J fuses, the most current-limiting UL-class fuse.