The Schneider Electric EZC100B3040 is a 3-pole molded case circuit breaker from the EasyPact EZC100B series, fitted with a thermal-magnetic TM-D trip unit rated 40 A at 50 °C. That 40 A rating governs the continuous load it can carry in a distribution panel — sized for a 40 A feeder or branch circuit, not a motor-starting duty. At 440 V AC the breaking capacity drops to 5 kA Icu; at 550 V AC it is 2.5 kA Icu, so verify the available fault current at your service voltage before specifying.
Backplate-mounted, fixed (non-pluggable). The toggle actuator gives positive contact indication (ON/OFF status visible on the breaker face).
Certified to IEC 60947-2 (the main MCCB standard for industrial applications), IEC 60947-1 (general rules), JIS C8201-2-2 (Japanese industrial standard), and GB/T 14048.2 (Chinese national standard). Rated insulation voltage 690 V AC; operational voltage up to 550 V AC. Mechanical durability 13,000 cycles — a standard duty-cycle life for fixed-installation distribution breakers.