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UVH1RT11K

Cutler Hammer
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Cutler Hammer UVH1RT11K is an under voltage release accessory designed for Series C molded case circuit breakers, providing automatic tripping when control voltage drops below a preset threshold to protect downstream equipment. It operates within a control voltage range of 208 to 240 volts AC and is compatible with FDB, FD, HFD, and FDC circuit breaker frames. The device weighs 5 lb and mounts as an internal accessory within the circuit breaker, integrating directly into the breaker mechanism for reliable undervoltage protection. This accessory meets UL listing standards implied by manufacturer specifications, ensuring compliance with industry safety requirements for electrical distribution systems. It is typically applied in industrial and commercial power systems where maintaining stable voltage is critical to prevent equipment damage or unsafe operating conditions.

Key Features & Specifications
  • Type: UVH
  • Family: Series C
  • Item Subcategory: Under Voltage Release
  • Control Voltage Minimum: 208 V AC
  • Control Voltage Maximum: 240 V AC
  • Compatible Frames: FDB, FD, HFD, FDC
  • Weight: 5 lb
  • Mounting Type: Accessory for molded case circuit breakers
  • Poles: Suitable for multi-pole breakers (frame dependent)
  • Interrupt Rating: Matches compatible breaker frame ratings
  • Certifications: UL Listed (implied by manufacturer standards)


Cutler Hammer UVH1RT11K - Under Voltage Release 208-240V AC