Siemens 3RV2011-0CA10 SIRIUS Motor Protection Circuit Breaker 3P 0.18-0.25A

The Siemens 3RV2011-0CA10 is a SIRIUS 3-pole motor protection circuit breaker in size S00 frame with adjustable thermal overload set to 0.18-0.25 A and instantaneous magnetic short-circuit release at 3.3 A (CLASS 10 trip class). Designed for motor branch protection with screw-terminal connections, standard switching capacity, and integrated disconnector functionality.

Technical specifications:

• Order number (MLFB): 3RV2011-0CA10
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type: Circuit breaker for motor protection (3RV2)
• Frame size: S00 (combinable with S00 / S0 contactors)
• Poles: 3
• Adjustable overload current range (Ir): 0.18-0.25 A
• Continuous current rating: 0.25 A
• Trip class: CLASS 10
• Instantaneous short-circuit release (N-release): 3.3 A
• Disconnector functionality: Yes
• Auxiliary switch ready: Yes (separately)
• Connection: Screw terminals
• Insulation voltage at pollution degree 3: 690 V AC
• Surge voltage resistance: 6 kV
• IP protection: IP20 (front + terminals)
• Mechanical / electrical service life: 100,000 cycles
• Shock resistance: 25 g / 11 ms (IEC 60068-2-27)
• Ambient temperature during operation: -20 to +60 °C
• Installation altitude: max. 2000 m
• Power loss at AC hot state: 5.5 W total / 1.8 W per pole
• Net weight: 279 g

Features and benefits:

• Combined motor protection: thermal overload + instantaneous magnetic short-circuit in a single device
• Disconnector function with secure isolation per IEC 60947-1/2
• S00 frame - combinable with S00 and S0 3RT2 contactors for compact motor-starter assemblies
• Screw-terminal connections accept rigid and flexible conductors
• SIRIUS modular system - mount auxiliary switches, signaling contacts and motor drives (sold separately)

Applications:

• Direct-on-line protection of small 3-phase motors (down to ~40 W) requiring CLASS 10 thermal trip
• Combined motor starters with 3RT2 contactor (S00 frame) and accessories
• General-purpose branch circuit protection per IEC 60947-4-1

Also known as: Siemens 3RV2011-0CA10, SIRIUS 3RV2 S00 motor circuit breaker 0.18-0.25A, Siemens motor protector small frame.