The Siemens 3RV1011-1JA10-ZW95 is a SIRIUS motor-protection circuit breaker designed for three-phase induction motors. The rated voltage range spans 20 to 690 V, covering 400 V and 480 V industrial supplies as well as 240 V control circuits. Breaking capacity is the headline number for a motor-protection breaker: at 240 V it interrupts 100 kA, at 400 V it handles 13 kA, at 500 V it's rated 3 kA, and at 690 V it manages 2 kA. For a 400 V panel with a typical 10 kA SCCR requirement, this breaker provides headroom. The gL/gG fuse coordination values are also given — at 240 V the maximum backup fuse is 80 A, at 400 V it's 63 A, at 500 V and 690 V it's 50 A — so the integrator can size the upstream fuse for selectivity without exceeding the breaker's withstand.
Depth is 75 mm, height 90 mm. Clearances: 20 mm upwards, 20 mm downwards, 9 mm at the sides, zero forwards or backwards. Terminals accept 2×(0.5 to 1.5 mm²) or 2×(0.75 to 2.5 mm²) solid or stranded, with M3 screws for the main contacts.
