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BRAH Electric B3RH1921-1HA31 - Auxiliary Contact Block 3NO/1NC

BRAH Electric
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BRAH Electric B3RH1921-1HA31 is a Sirius family 3RH type contactor and motor starter auxiliary block designed for extending control functionality in motor control systems. This auxiliary contact block operates with a 3NO/1NC configuration, supporting a maximum coil voltage of 600V AC/DC and a current rating of 10A, with a temperature rating of -25°C to +60°C. The unit weighs 5.19 lb and features a compact frame size suitable for panel mounting, constructed with durable metal and insulation materials rated for 600V. It complies with IEC and UL standards, ensuring reliable performance in industrial environments. Typical applications include auxiliary switching in motor starters, contactors, and control circuits for conveyors, pumps, and HVAC systems.

Key Features & Specifications
  • Type: Sirius 3RH auxiliary contact block for contactors and motor starters
  • Voltage Rating: 600V AC/DC
  • Current Rating: 10A
  • Configuration: 3NO/1NC
  • Weight: 5.19 lb
  • Standards: IEC, UL
  • Applications: Auxiliary switching in motor starters, contactors, conveyors, pumps, HVAC
  • Coil Voltage Maximum: 600V
  • Temp Rating: -25°C to +60°C
  • Phase: Single/Three-phase compatible
  • Poles: 4 poles (3NO/1NC)
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • Coil Material: Copper
  • Enclosure: Open type
  • Nema Rating: NEMA 1
  • Certification: UL, CE
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Screw terminals
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Compatible Frames: Sirius 3RT, 3RH series
  • Installation Type: Panel
  • Item QTY: 1
  • Nema Starter Size: NEMA 0-1
  • Breaker Frame: Not applicable
  • Current Rating: 10A
  • Reverse Standoff Voltage: Not applicable
  • Watts: 5W
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 60°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available