Tronic MCCB 160A 3 Pole Adjustable Trip

Our review

This is a molded case circuit breaker from Tronic, rated at 160 amps with three poles and an adjustable trip setting. MCCBs like this sit between a fuse and a full air circuit breaker: they handle heavier currents than miniature breakers and can be reset after tripping. The adjustable trip is the part worth thinking about, because it lets you tune the breaker to the load rather than accepting a fixed threshold. It suits someone protecting a distribution board, a motor circuit or a feeder where the current draw is known and steady. Before buying, confirm your system voltage and frequency match what the breaker is designed for, since the listing gives no figures here. Check the trip range you actually need, the interrupting capacity your installation demands, and whether your panel accepts the physical frame size. Compare against fixed-trip MCCBs if your load never changes, and against fuses if you want the cheapest possible protection. If your current varies or you expect to adjust settings later, the adjustable version earns its place.