Motor protection circuit breaker for panel integration
The Siemens SIRIUS 3RV1011-1DA10-ZW95 is a motor protection circuit breaker designed for the 20... 690 V range, with a Trip Class 10 thermal overload characteristic that matches standard IEC motor starting profiles — it lets a motor draw locked-rotor current for up to 10 seconds before tripping, which covers most pump, fan, and conveyor starts without nuisance tripping. Rated interrupting capacity hits 100 kA at both 240 V and 400 V, so it can be applied on high-fault panels without needing an upstream current-limiting fuse for most installations — the 100 kA SCCR covers the majority of industrial service-entrance fault levels. Phase failure detection is built in, which is critical for three-phase motor protection: if one phase drops, the breaker trips faster than a standard thermal-only device, preventing single-phasing damage to the motor winding. Mounts via screw fixing or snap-on onto 35 mm standard mounting rail per DIN EN 60715, and the 45 mm width means it occupies a single modular unit on the rail — panel layout planners can count one position per breaker.
Sourcing and lifecycle posture
For BOM-line sourcing, the 3RV1011-1DA10-ZW95 is quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time. This is not a surplus or broker-only part.
Mounting and clearance
Screw-type terminals on the main current circuit accept 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²) solid or stranded conductors, with M3 terminal screws — standard for panel wiring up to the rated current. Clearance requirements: 20 mm upwards and downwards, 9 mm at the side, zero forwards and backwards. The 75 mm depth fits standard 100 mm deep enclosures with room for wiring behind the rail. Mounting position is any, so the breaker can be oriented horizontally or vertically in the panel without derating — useful when laying out dense MCC sections.