• Manufacturer: Siemens
• Series: SIRIUS 3RV29
• Product Type: Auxiliary and signaling switch module
• Model Number: 3RV2921-5M

Function & Application

• Used for status indication (ON/OFF, trip, overload)
• Designed for use with 3RV2 motor protection circuit breakers
• Provides remote signaling of breaker status

Electrical Characteristics

• Control voltage: 24 V DC
• Contact type: 1 Form C (SPDT – NO/NC)
• Contact rating: 20 mA
• Rated insulation voltage: 30 V
• Impulse withstand voltage: 0.8 kV
• LED indicator: Yes (status indication included)

Mechanical Data

• Mounting type: Plug-in / DIN rail compatible
• Terminal type: Spring clamp terminals
• Protection class: IP20
• Net weight: ~0.07 kg
• Dimensions (H × W × D): 90 × 18 × 71 mm

Operating Conditions

• Ambient temperature: -20°C to +60°C
• Storage temperature: -40°C to +85°C

Standards

• IEC compliant
• CE certified
• cULus approved

1. Datasheet