What this MCCB delivers for the panel
The Siemens SENTRON 3VA1196-5EF36-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a TM240 thermal-magnetic release and an undervoltage release (UVR) for coordinated trip on loss of control voltage. Rated 16 A continuously up to 55 °C ambient, it derates to 15 A at 60–70 °C — a detail that matters when the breaker shares a crowded enclosure with other heat sources. Breaking capacity reaches 187 kA at 240 VAC, 121 kA at 415 V, and 75.6 kA at 440 V — figures that let it interrupt high-fault currents without cascading upstream, so it can serve as the main breaker in a sub-distribution board fed by a large transformer. At 690 V the interrupting rating drops to 17 kA, which still covers most motor-drive branch circuits at that voltage level.
Footprint and panel fit
The breaker occupies 76.2 mm width, 130 mm height, and 70 mm depth — a 3-inch-wide slot on the DIN rail or mounting plate, leaving room alongside other SENTRON devices in a standardized switchboard layout. Rated insulation voltage is 800 V, so it can be wired into 690 V systems with full dielectric margin per IEC 60947-2.
Lifecycle and sourcing posture
For a BOM freeze or a startup spares package, this part is quoted to order against an RFQ — availability and current pricing confirmed at quote time, no lead-time surprises for the commissioning window.