Thomas & Betts 54478 - Under Voltage Release 200-220V (Masterpact)
Thomas & Betts 54478 - Under Voltage Release 200-220V (Masterpact)

Thomas & Betts 54478 - Under Voltage Release 200-220V (Masterpact)

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Thomas & Betts 54478 is an Under Voltage Release accessory designed for the Masterpact family of circuit breakers, providing automatic trip protection when control voltage drops below a specified threshold. It operates within a control voltage range of 200 to 220 V and is compatible with M and MP frame sizes. This component weighs 5 lb and is constructed for integration into industrial power distribution systems. It meets industry standards for reliable undervoltage protection in commercial and industrial environments. Typical applications include motor control centers, switchgear, and main breaker panels requiring voltage monitoring.

Key Features & Specifications
  • Type: Under Voltage Release
  • Family: Masterpact
  • Control Voltage Minimum: 200 V
  • Control Voltage Maximum: 220 V
  • Compatible Frames: M, MP
  • Weight: 5 lb


Product Identification
  • UPC: 60198654478
  • GTIN: 00601986544788