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Black hard-wired GFCI enclosure, rectangular Valox housing, 240V 30A rating

Hubbell Incorporated

Hubbell Incorporated GFHW23005 GFCI 240V 30A Black

SKU CH-4MM8-WNGZ9

A hard-wired 240 V GFCI rated for 30 A with a Valox enclosure rated 4X for panel or surface mounting

  • TypeHard Wired
  • ColorBlack
  • Hard-wired GFCI protects 240 V circuits up to 30 A
  • Valox enclosure rated 4X resists dust, water and corrosion
  • Manual reset restores power only after fault is cleared
  • Operates from –30 °F to 150 °F for extreme environments
  • UL Listed for code-compliant installations

Hard-wired GFCI for 240 V circuits

This hard-wired ground-fault circuit interrupter is rated for 30 A at 240 V AC single phase. It is intended for panel or surface mounting in locations that require personnel protection on 240 V branch circuits. The enclosure carries a 4X rating and is moulded from Valox material. A 3/4 in NPT inlet accepts standard conduit entries.

Thermal range and quiet operation

The device operates from -30 °F to 150 °F without an audible alert, so it adds no noise in normal service. Power draw is limited to the sensing and trip circuitry inside the 4X enclosure. Manual reset ensures the circuit stays open until a deliberate restart after a fault.

Behaviour under sustained fault conditions

When a ground fault persists the breaker trips and remains open until the manual reset is actuated, preventing automatic re-energisation of a faulty circuit. The Valox housing and 4X rating maintain integrity during repeated fault events across the full temperature span. The two-foot lead length provides adequate reach for panel wiring.

Highlights

  • Hard-wired GFCI protects 240 V circuits up to 30 A
  • Valox enclosure rated 4X resists dust, water and corrosion
  • Manual reset restores power only after fault is cleared
  • Operates from –30 °F to 150 °F for extreme environments
  • UL Listed for code-compliant installations

Specifications

BrandHubbell Wiring Device-Kellems
ModelGFHW23005
TypeHard Wired
ColorBlack

Questions about this item

How is the GFHW23005 hard-wired GFCI installed, and what wiring step is often missed?

Mount the enclosure on a panel or surface, connect line and load conductors to the internal terminals, and secure the 3/4 in NPT inlet; the step often missed is torquing the terminal screws to the listed value so the 30 A rating is maintained.

What maintenance or replacement will the GFHW23005 need over time?

Test the manual reset button monthly; if the device trips and will not reset, or the Valox enclosure shows UV cracking after prolonged exposure, replace the entire unit — no internal parts are serviceable.

What limit appears first when the GFHW23005 runs continuously at full load?

The 150 °F maximum operating temperature is the first boundary reached; sustained 30 A operation in a sealed 4X enclosure can push internal temperatures to that limit before the GFCI trips.

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