Square D NBD630L3500 MCCB Unit

Feature & Principle

This molded case circuit breaker adopts thermal-magnetic trip mechanism. Bimetallic strip provides overload protection, magnetic coil realizes instantaneous short-circuit trip. It can manually switch on/off the circuit and cut off fault current automatically to protect downstream cables and electrical loads.

Specifications

Model: NBD630L3500 Brand: Square D (Schneider) Series: NBD Frame size: 630A Poles: 3P Rated current: 500A Trip type: Thermal magnetic Voltage rating: 600VAC Mounting: Fixed Certification: UL, CE

Components & Diagnostics

Bimetallic thermal element, magnetic trip coil, main contact set, arc extinguishing chamber, operating handle. Common faults: contact overheating, trip failure, arc chamber carbon accumulation, handle stuck.

Product Brief

NBD630L3500 molded case circuit breaker, Square D low voltage spare widely used for industrial power distribution cabinet branch protection.