SIEMENS 3RA6250-1CB33 compact load feeder

  • Industrial motor control systems
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  • Compressor systems
  • Automation panels
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    SIEMENS 3RA6250-1CB33 is a compact load feeder – reversing starter designed for direct and reverse operation of three-phase motors. It integrates a motor protection circuit breaker, contactor, and electronic overload relay. Operates at up to 690 V main circuit voltage and 24 V AC/DC control voltage, with an adjustable current range of 1…4 A.
  • Model: 3RA6250-1CB33
  • Series: SIRIUS 3RA62
  • Type: Compact load feeder / reversing starter
  • Main Circuit Voltage: 690 V AC
  • Control Voltage: 24 V AC/DC (50–60 Hz)
  • Current Range: 1…4 A
  • Protection Class: IP20
  • Connection Type:
    • Main circuit: Plug-in, no terminals
    • Control circuit: Screw terminal
  • Motor Power:
    • 400 V: 1.5 kW
    • 500 V: 2.2 kW
    • 690 V: 3 kW
  • Mechanical Life: 10 million switching cycles
  • Electrical Life:
    • AC-15 (230 V, 6 A): 200,000 cycles
    • DC-13 (24 V, 6 A): 30,000 cycles
  • Short-Circuit Breaking Capacity:
    • 400 V: 53 kA
    • 500 V: 3 kA
    • 690 V: 3 kA
  • Trip Class: Adjustable CLASS 10 and CLASS 20
  • Dimensions: 170 x 90 x 165 mm
  • Weight: 2.482 kg
  • Operating Temperature: -20°C to +60°C
  • Storage Temperature: -55°C to +80°C
  • Humidity Resistance: 10% – 90%
  • Shock/Vibration Resistance: IEC 60947-6-2 compliant
  • EMC Compliance: IEC 61000-4-2/3/4/5/6, CISPR11 Class A
  • LED Indicators: 3
  • Auxiliary Contacts: 2 NO
  • Short-Circuit Protection: Electromagnetic, recommended fuse: gL/gG 10 A