product overview AB-3S permanent magnetic circuit breaker is a new generation of outdoor post-mounted vacuum circuit breakers. The product can function as either 10KV and 35KV substation main transformer 10KV outgoing line switch, can also be used as distribution of pole-mounted switch; and the company's combination of controllers for control, protection, measurement, newsletters, the realization of distribution automation and miniaturization of choice for substation equipment.

Magnetic brake mechanism, fewer parts, closing power is significantly reduced, stable and reliable, no maintenance on a regular basis. Outdoor epoxy resin insulation, light weight, long life up to 15 years, oil-free, non-SF₆, comply with environmental requirements. A built-in integrated sensor technology, at nominal fault current of unsaturated. Operation power management module, auxiliary power is available for 2-way line (AC110V or AC220V) automatic switch, you can monitor the battery voltage and controls battery charging and discharging current.