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Gray carbon-steel wall-mount enclosure 20.0 in H x 20.0 in W x 12.0 in D with hinged solid cover and keyed handle

Wiegmann

Wiegmann N4122020121PTC electrical box 20.0 in H x 20.0 in W x 12.0 in D

SKU CH-M9H9-76FK1

Carbon-steel wall-mount enclosure rated NEMA 3R, 4, 12 and IP66 with hinged solid cover, keyed handle and poured gasket

  • TypeElectrical Boxes & Enclosures
  • NEMA 3R, 4, 12 and IP66 ratings protect against dust, water and oil ingress
  • 14-gauge carbon steel with ANSI 61 polyester powder finish resists corrosion in harsh environments
  • Keyed padlockable handle secures the enclosure while allowing authorised access
  • Seamless poured-in-place polyurethane gasket maintains a continuous seal around the door
  • Wall-mount design with 20.0 in height, 20.0 in width and 12.0 in depth fits standard panel layouts

Wiegmann N412 wall-mount enclosure

This NEMA 3R, 4 and 12 rated enclosure is built from 14 gauge carbon steel with an ANSI 61 polyester powder finish in gray. The solid hinged cover uses a keyed handle and a seamless polyurethane poured-in-place gasket to achieve an IP66 seal. It measures 20.0 in H x 20.0 in W x 12.0 in D with a usable opening depth of 11.88 in. Wall mounting holes are integrated for direct installation.

Bundled interior panel and padlockable handle

The included interior panel 2NJ34 provides a ready mounting surface for DIN rail, terminal blocks or other components without separate sourcing. A single-point key padlockable handle secures the cover and allows authorised access while maintaining the environmental rating. These factory-fitted items reduce assembly time compared to ordering panels and locks separately.

Check mounting space and cable entry needs

Verify the 20.0 by 20.0 inch footprint fits your allocated wall area and that the 12.0 inch depth clears any obstructions. The enclosure ships without pre-drilled conduit openings so plan cable entry locations and required fittings before mounting. Ensure the cULus listing satisfies local code requirements for the intended indoor or outdoor application.

Highlights

  • NEMA 3R, 4, 12 and IP66 ratings protect against dust, water and oil ingress
  • 14-gauge carbon steel with ANSI 61 polyester powder finish resists corrosion in harsh environments
  • Keyed padlockable handle secures the enclosure while allowing authorised access
  • Seamless poured-in-place polyurethane gasket maintains a continuous seal around the door
  • Wall-mount design with 20.0 in height, 20.0 in width and 12.0 in depth fits standard panel layouts

Specifications

BrandWIEGMANN
TypeElectrical Boxes & Enclosures

Questions about this item

How often should the seamless polyurethane poured-in-place gasket be inspected and replaced?

Inspect the gasket annually for compression set or chemical damage; replace it if cracks appear or the IP66 seal is compromised.

What limits continuous operation inside the 14-gauge carbon-steel enclosure first — heat buildup or the keyed-handle latch?

Heat buildup is the primary limit; the 12-inch depth and ANSI 61 polyester powder finish restrict passive dissipation, so internal temperatures rise before the 1-point key padlockable handle becomes an issue.

How much heat does the N412-PTC series dissipate when mounted on a wall and running all day?

The carbon-steel body with seamless polyurethane gasket relies on natural convection through the 11.88-inch usable opening depth; no active cooling is fitted, so steady-state temperature depends on the installed components.

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