Premium 63A/40A Air Switch MCB for Electric Vehicles - Ultimate Circuit Protection

High-precision thermal-magnetic trip mechanism ensures instant overload/short-circuit protection for e-scooters and motorbikes. Industrial-grade polycarbonate housing with flame-retardant properties (UL94 V-0 rated) withstands 15kA breaking capacity.

Oversized pure silver contacts reduce resistance by 30% vs copper alloys, preventing voltage drop during high-current operations. DIN rail-compatible design allows tool-free installation in EV battery compartments or charging stations.

Optimized for 48V-72V lithium/Pb-acid systems with humidity-resistant terminals (IP20). Features visible trip indicator and manual reset button. CNC-milled copper conductors ensure 20,000+ mechanical cycles.

Ideal for:

- Upgrading factory-installed breakers in NIU/Xiaomi e-scooters

- Custom electric motorcycle builds

- Solar-powered vehicle charging arrays

- Warehouse/logistics fleet maintenance

Globally certified (CE/RoHS) with laser-etched calibration markings for precision amperage settings. Bulk pricing available for OEMs and repair shops. Ships with mounting accessories.