Siemens SENTRON 3VA1110-5EE32-0AE0 — 100 A MCCB with TM220 Release
The Siemens SENTRON 3VA1110-5EE32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated 100 A at 40 °C, designed for line protection in industrial distribution panels. Its TM220 thermal-magnetic release provides fixed overload and short-circuit protection, with a breaking capacity of 187 kA at 240 V AC — sufficient for high-fault-current installations like main feeders or large motor control centers.
Rated Current and Thermal Derating
The breaker is rated 100 A continuous at 40 °C ambient, and holds that rating through 50 °C. Above that, it derates linearly: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. For a panel running near 60 °C, the effective capacity drops to 96 A — factor that into your load schedule.
Breaking Capacity Across Voltages
Breaking capacity varies with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. At 415 V, the 121 kA rating covers most industrial secondary-distribution fault levels; at 690 V the 17 kA limit may require upstream current-limiting fuses for high-fault installations.
Physical Fit and Panel Integration
Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard 3-pole MCCB footprint for DIN-rail or panel-mount enclosures. The 76.2 mm width (3 inches) matches typical 3-pole breaker spacing, so it drops into existing SENTRON or comparable distribution panels without busbar rework.