What the ratings mean for fit
The Siemens SENTRON 3VM1196-5EE32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection — meaning it sits at the feeder or branch-circuit head to protect cable and bus against overload and short circuit, not a motor or generator. The TM220 overcurrent release is a thermal-magnetic type: the thermal element handles sustained overloads, the magnetic element clears short-circuit faults. Rated current holds at 16 A from 40 °C through 55 °C ambient, then derates to 15 A at 60 °C through 70 °C — a thermal plateau that matters when the breaker is packed into a warm enclosure with other heat sources. Interrupting capacity is 187 kA at 240 V AC, 121 kA at 415 V AC, 76 kA at 440 V AC, and 17 kA at 500 V AC; the 415 V and 440 V numbers are the ones that govern for most European and Asian industrial distribution panels. Rated insulation voltage is 800 V, so the breaker is rated for 690 V line-to-line systems without a de-rate on dielectric withstand. The front face carries IP40 protection — fine for a panel interior, not for washdown or outdoor exposure.
Panel integration and thermal budget
The 3VM1196-5EE32-0AA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact 3-pole footprint that fits standard DIN-rail or panel-mount arrangements. Maximum power loss is 11 W at rated load; that loss dissipates into the enclosure air, so factor it into the panel's thermal calculation when grouping multiple breakers. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The 70 mm depth leaves clearance for rear-connected busbars or cable duct behind the mounting plate.