The Schneider Electric EZC100H2040 is a 2-pole EasyPact EZC100H moulded-case circuit breaker rated 40 A at 40 °C, with a TM-D thermal-magnetic trip unit. The 40 A trip rating at 50 °C means the breaker holds full load without nuisance tripping in a warm panel — the TM-D curve handles motor inrush and distribution loads. Breaking capacity varies by voltage: 100 kA Icu at 110–130 V AC, 50 kA at 220–240 V AC, 30 kA at 380–415 V AC, 20 kA at 440 V AC, and 10 kA at 550 V AC 50/60 Hz, all per IEC 60947-2. On DC, it delivers 10 kA Icu at 125 V DC (1-pole) and 250 V DC (2-pole). The H breaking-capacity code means this is the high-interrupting version of the EZC100 frame — sized for distribution panels where fault currents can hit 100 kA on low-voltage AC. IP20 finger-safe terminals and IK07 impact resistance cover handling during installation.
Deployment context
Fixed backplate mounting with front-facing connections — upside and downside both front-connect, so it panels into a distribution board or enclosure with a 25 mm connection pitch. The 2-pole format (2t protected poles, no neutral protection) suits single-phase or DC branch circuits where only the line and switched neutral need protection. Mechanical durability of 13,000 cycles fits distribution duty (not frequent switching like a contactor).