Switchgear & Protection

DIN-rail miniature circuit breakers installed in an industrial distribution panel

Mini Circuit Breaker: Guide

A mini circuit breaker , more formally a miniature circuit breaker (MCB), protects low-voltage final circuits against overload and short circuit. It can be reset after the fault is corrected, but it must be selected for…

Modern low-voltage switchgear lineup with main, tie and feeder sections

Complete Guide to Low-Voltage Switchgear

Low-voltage switchgear receives power from transformers, generators or utility services and distributes it through main, tie and feeder devices. Compared with a simple panelboard, LV switchgear is engineered for higher…

Compact gas-insulated switchgear beside larger air-insulated switchgear in a substation room

Complete Guide to Gas & Air Insulated Switchgear

Gas-insulated switchgear (GIS) and air-insulated switchgear (AIS) perform the same fundamental duties—switching, protection, isolation and distribution—but use different insulation approaches. GIS encloses primary parts…