Siemens 3RV2031-4UA10 Motor Protection Circuit Breaker 32-40A 3-Pole 690V Class 10

Siemens 3RV2031-4UA10 SIRIUS 3RV2 Motor Protection Circuit Breaker

The Siemens 3RV2031-4UA10 is a SIRIUS 3RV2 size S2 circuit breaker designed for motor protection applications. It provides adjustable thermal overload protection from 32 to 40 A and incorporates a magnetic short-circuit release within a compact DIN rail-mountable form factor.

Motor Protection Functions

• Adjustable overload release: 32 … 40 A
• Trip class: Class 10
• Thermal overload release design
• Magnetic short-circuit trip
• Instantaneous short-circuit response: 585 A

Electrical Ratings and Performance

Rated operational voltage up to 690 V with a rated operational current of 40 A. Maximum short-circuit breaking capacity (Icu) reaches 65 kA at 400 V and 4 kA at 690 V. Operational short-circuit breaking capacity (Ics) is 30 kA at 400 V.

Installation and Mounting

• 3-pole main current circuit
• Screw-type terminals (top and bottom)
• Mounting: screw or snap-on 35 mm DIN rail
• Dimensions (H x W x D): 140 x 55 x 149 mm