The Siemens SENTRON 3VA1196-4EF32-0JA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 16 A continuous current (Iu) and a TM240 thermal-magnetic overcurrent release. Its interrupting capacity reaches 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — figures that govern selectivity coordination downstream. The 16 A rating holds steady from 40 °C through 50 °C ambient; above that it derates linearly to 14.4 A at 70 °C. A panel builder sizing for a warm enclosure should check the thermal curve before committing the BOM line.
Breaking capacity and selectivity
The 121 kA at 240 V and 75.6 kA at 415 V place this MCCB well above typical service-entrance fault levels in North American and European distribution. The 690 V rating of 11.9 kA is the limiting case for industrial 600 V class systems — coordination studies should use that figure for the worst-case phase-to-phase fault.
Dimensions and panel fit
At 70 mm deep, 76.2 mm wide, and 130 mm tall, the 3VA1196-4EF32-0JA0 occupies a standard 3-pole MCCB footprint. The 76.2 mm width (3 inches) matches the typical DIN-rail or panel-mount cutout for SENTRON 3VA frames, so it drops into an existing 3VA panel layout without re-drilling gland plates or re-routing bus bars.
Auxiliary and release options
This variant ships without auxiliary contacts or undervoltage release, but includes a shunt trip (STL) release — order code 3VA9688-0BL32 for the integrated auxiliary trip module. No communication function, phase failure detection, or ground fault monitoring is built in; those are separate 3VA variants.