Siemens 3RV2927-7AA00 Contactor Mounting Adapter for SIRIUS 3RV2 Circuit Breakers S2/S3

Contactor mounting adapter enabling direct mounting of SIRIUS 3RV2 circuit breakers (frame sizes S2 and S3) onto contactors and other devices. The adapter provides a secure mechanical interface for combining motor protection and switching functions in a compact assembly.

Advantages

Direct mounting eliminates the need for additional wiring between the circuit breaker and contactor, reducing installation time and space requirements. The adapter ensures a reliable mechanical connection, maintaining alignment and stability in industrial control panels.

Suitable for

• SIRIUS 3RV2 circuit breakers, frame sizes S2 and S3
• Direct mounting onto compatible contactors and devices
• Industrial control panel applications requiring compact motor starter combinations

Key specifications

• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Pollution degree: 3
• Operating temperature range: -20 to +60 °C
• Storage temperature range: -50 to +80 °C
• Relative humidity: 10-95% (non-condensing)
• Max. installation altitude: 2000 m
• Degree of protection: IP20
• Shock resistance: 15g / 11ms
• Vibration resistance: 10-500 Hz, 2g
• Electrical connection: Main current circuit
• Standards compliance: IEC 60947

Recommendations

For use with SIRIUS 3RV2 circuit breakers and compatible contactors to create space-saving motor starter combinations.