The Siemens 3RV1364-7EN10 is a SIRIUS molded-case circuit breaker (MCCB) designed specifically for starter combinations — the kind of duty that takes the radiant heat and drive EMI of a mill floor or heavy panel. Rated 250 A continuous with a 200 kA interrupting capacity at 400 V AC, it handles motor loads up to 132 kW at 400 V without breaking a sweat. The electronic short-circuit trip gives you precision coordination downstream, and the IP20 finger-safe front keeps the wireman safe during commissioning.
SCCR and selectivity — what the ratings mean for your panel
The 200 kA SCCR at 400 V AC is the headline number for anyone coordinating a distribution board or motor control center. That rating means this MCCB safely interrupts faults up to 200 kA without cascading upstream — critical when you're feeding a line with transformer capacity behind it. At 690 V AC the interrupting capacity is still 80 kA, so it holds up on 690 V systems common in mining and heavy industrial sites. The 132 kW motor rating at 400 V gives you a direct sizing anchor: if your motor plate says 132 kW at 400 V, this breaker is the right match for AC-3 starting duty.
Mounting and integration
Screw fixing to the mounting plate — no DIN rail on this frame size at 105 mm wide by 205 mm tall by 103.5 mm deep. The 0 mm clearance required at the back and sides means you can pack it tight against the gland plate or adjacent breakers without derating. Any mounting position works, so vertical bus bars or horizontal layouts are both fine. Screw-type terminals on both main and auxiliary circuits; the auxiliary switch option is available if you need remote status feedback. Operating temperature range of -25 to +60 °C covers most indoor industrial environments, and the -40 to +70 °C storage range handles warehouse extremes.
Substance prohibitance date of 01/08/2008 aligns with RoHS compliance — the part meets the EU RoHS directive effective from that date. No ground fault or phase failure detection built in (those functions live in the upstream protection or the motor management system), so plan your protection scheme accordingly.