Siemens 3RV2021-4DA10 is a SIRIUS 3RV2 series 3-pole motor protection circuit breaker (MSP) with S0 size, adjustable overload protection current of 20-25A, Class 10 tripping, rated voltage of 690VAC, short-circuit breaking capacity of 100kA (400/500VAC)/100kA (690VAC), IP20 protection, screw terminal, DIN rail mounting. The following provides detailed parameter descriptions.
Basic attribute: Product type: SIRIUS 3RV2 series 3-pole motor protection circuit breaker, thermal-magnetic trip, S0 size, dimensions (W×H×D) 45×97×91mm, no auxiliary contacts, rotary handle with locking and trip indication.
Installation and wiring: 35mm standard DIN rail clip-in installation, with any position; top/bottom screw terminals, compatible with solid/stranded wires 2.5-6mm², multi-strand thin wires 2.5-4mm², capable of accepting 2×(14-8) AWG conductors, with tightening torque of 2-2.5N·m.
Protection and Environment: IP20 protection; Operating temperature -20°C to +60°C, storage/transportation -50°C to +80°C, relative humidity 10%-95%, insulation voltage 690VAC, impact voltage resistance 6kV, installation altitude up to 2000m.
Electrical performance rated parameters: 690VAC, 50/60Hz; overload protection current adjustable from 20-25A, instantaneous short-circuit tripping response current 325A (approximately 13 times the maximum overload setting current), with phase loss protection and temperature compensation.
Breaking capacity and category: Short-circuit breaking capacity (Icu) 100kA at 400/500VAC, 100kA at 690VAC; utilization category AC-3, tripping class Class 10 (IEC 60947-4-1).
Certified Rating: Under UL/CSA standards, the full-load current rating of a three-phase AC motor is 25A at both 480V and 600V; corresponding power references are: 7.5kW at 230V, 11kW at 400V, and 15kW at 600V.
Safety and mechanical lifespan (B10 value, high demand rate, SN 31920) 5000 cycles; dangerous failure rate (low/high demand rate, SN 31920) 50%.
Insulation and immunity: Insulation voltage is 690VAC, impact voltage resistance capability is 6kV, and insulation distance meets the safety requirements of the 690V system.
Certifications: CE, UL, CSA, CCC, ATEX, EAC, compliant with RoHS standards.