SENTRON 3VA1096-4ED32-0DA0 — 16 A MCCB with undervoltage release
The Siemens SENTRON 3VA1096-4ED32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated 16 A at 40 °C, designed for line protection in distribution panels. Its TM210 thermal-magnetic overcurrent release handles overload and short-circuit protection without a separate trip indicator. The built-in undervoltage release (UVR) drops the breaker when supply voltage falls below the dropout threshold — a common requirement for motor feeder circuits where automatic disconnection on voltage loss is needed.
Breaking capacity and selectivity
Breaking capacity reaches 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that put this MCCB well into the high-fault category for North American 240/277 V and European 400 V systems. At 690 V it still interrupts 11.9 kA, so it can serve as a main or branch breaker in 480Y/277 V panels where available fault current exceeds 65 kA. The rated insulation voltage of 800 V gives headroom for 690 V applications without derating the dielectric.
Thermal derating and panel fit
Current rating holds at 16 A from 40 °C through 55 °C, then steps to 15 A at 60 °C and 65 °C, and stays at 15 A up to the 70 °C maximum operating temperature. That flat derating curve means the breaker can be stacked in a warm enclosure without losing a full amp step until the ambient passes 55 °C. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard SENTRON 3VA frame that fits Siemens panelboards and DIN-rail adapters. Maximum power loss is 13.1 W, which factors into enclosure thermal calculations when grouping several breakers.