The Siemens SENTRON 3VA1196-5EF36-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a TM240 thermal-magnetic release and an undervoltage release (UVR). Its 16 A rating holds flat from 40 °C up to 55 °C, then derates to 15 A at 60 °C and above — so no head-scratching about summer ambient in a non-climate-controlled panel.
Breaking capacity — what it means on the line
The interrupting ratings are given at several voltages: 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. That 187 kA at 240 V tells you this breaker can handle a very high available fault current in a low-voltage distribution panel — typical for a main or large feeder in a heavy industrial plant. At 690 V the 17 kA figure is still respectable for motor branch circuits.
Dimensions and panel fit
It measures 130 mm high, 76.2 mm wide, and 70 mm deep. That 3-inch width is the standard 3-pole MCCB footprint — it drops into the same DIN-rail or screw-mount slot as other SENTRON 3VA frames. The rated insulation voltage is 800 V, so it's comfortable in 480 V or 600 V panels with margin.