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Schneider Electric 33673 - MN Undervoltage Release 380-480V (Compact Family)

Schneider Electric
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Schneider Electric 33673 is an MN undervoltage release accessory from the Compact family, designed to protect circuit breakers by automatically opening the circuit when voltage drops below 35% of the rated voltage. It operates within a control voltage range of 380 to 480 V AC/DC, ensuring reliable disconnection under undervoltage conditions. This accessory weighs 5 lb and is compatible with NS, NT, and NW frame circuit breakers. It complies with UL and IEC standards for industrial safety. Typical applications include industrial and commercial power distribution systems requiring undervoltage protection.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Part Number: 33673
  • Item Subcategory: Under Voltage Release
  • Family: Compact
  • Type: MN
  • Weight: 5 lb
  • Control Voltage Minimum: 380 V
  • Control Voltage Maximum: 480 V
  • Compatible Frames: NS, NT, NW
  • Voltage Rating: 380-480V AC/DC
  • Function: Opens circuit when voltage drops below 35% of rated voltage
  • Mounting Type: Accessory for circuit breakers
  • Tightening Torque: 31.0 lbf.in (3.5 N.m)
  • Compliance: UL, IEC