Overview
The C16B6TM125 is a Schneider ComPacT NSX molded case circuit breaker rated 125 A with a TM-D thermal-magnetic trip unit, switching 4 poles at up to 690 V AC and interrupting 40 kA under IEC 60947-2. It is a fixed-mount, front-connect device with a toggle actuator, Class II insulation on the front face, and a 35 mm terminal pitch for panel wiring.
How it compares
Compared to the 3-pole C10F3TM025 (25 A, 85 kA IC), the C16B6TM125 carries a higher continuous rating at 125 A but a lower interrupting capacity at 40 kA — select the C10F3TM025 when the fault current exceeds 40 kA or the load is under 25 A on a 3-pole circuit.