The Siemens SIRIUS 3RV1011-1JA10-ZW98 is a motor protection circuit breaker designed for a 20 to 690 V range, with a Class 10 trip characteristic that matches standard motor starting curves — it holds through the inrush and trips before the winding sees sustained overload. Phase failure detection is built in, so a lost leg on a three-phase motor gets caught at the breaker rather than cooking the stator.
What the ratings mean for your panel
The breaking capacity tells you where this breaker can sit in the fault-current chain: 100 kA at 240 V, 13 kA at 400 V, 3 kA at 500 V, 2 kA at 690 V. At 400 V that 13 kA SCCR covers most industrial distribution panels downstream of a 1000 kVA transformer; at 690 V the 2 kA rating means it belongs on a branch where the prospective fault current is known to be low, or behind a current-limiting upstream device. The gL/gG fuse coordination values (80 A at 240 V, 63 A at 400 V, 50 A at both 500 V and 690 V) are the maximum backup fuse sizes that still let the breaker clear a fault — oversize the fuse and the breaker may not interrupt. Mounting is screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with 45 mm width and 75 mm depth, so it takes one standard 45 mm slot. Clearances: 20 mm above and below, 9 mm at the side, 0 mm forwards and backwards — it can sit flush against the backplane and the door.