Square D MH Series NQ/NF Panel...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$44.93
Square D MH Series NQ/NF Panelboard Enclosure, Type 1 Blank End Wall, Steel

Square D MH Series NQ/NF Panelboard Enclosure, Type 1 Blank End Wall, Steel

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Model: MH26BE

In Stock (leaves warehouse same day if ordered before 3pm ET)

$44.93
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Square D MH Series NQ/NF Panelboard Enclosure, Type 1 Blank End Wall, Steel

The Square D MH Series NQ/NF Panelboard Enclosure is a steel enclosure box built with blank end walls for Square D's NQ and NF panelboard line, rated NEMA Type 1 for general-purpose indoor protection. This enclosure family is available in multiple heights — 26" H, 44" H, 62" H, and 68" H — each configured at 20" W x 5.75" D, letting contractors and facility teams select the enclosure height that matches their panelboard load. Every height option in this family shares the same steel construction, blank end wall design, and NEMA Type 1 rating, and the enclosure is cULus Listed for use in commercial buildings, industrial buildings, data centers, stadiums, and offices. NQ and NF panelboards feature a wide selection of circuit breakers and accessories that are ready to install, and this enclosure is part of that modular, code-compliant system.

Key Features

  • Height Range: Available in 26" H, 44" H, 62" H, and 68" H configurations to match a range of NQ/NF panelboard installations.
  • Consistent Footprint: Every height option is built at 20" W x 5.75" D, simplifying wall-space planning across the family.
  • Durable Construction: Steel enclosure material provides a rugged, long-lasting panelboard housing.
  • Blank End Wall Design: Blank end wall enclosure type supports Square D's modular construction, allowing easy assembly or modification.
  • NEMA Type 1 Rating: NEMA 1 degree of protection is suited to indoor, general-purpose locations.
  • Broad Panelboard Compatibility: NQ and NF panelboards offer a wide selection of circuit breakers and accessories that are ready to install.
  • Distributor-Ready Options: Type 1, 2, 3R/5/12 enclosures are available ready to install from distributor inventory, with Type 1, 2, 3R, 4, 4X, 5, and 12 enclosures offered across the broader Square D line.

Certifications & Compliance

  • cULus Listed
  • RoHS Compliant (EU)
  • Mercury Free
  • Toxic Heavy Metal Free

Technical Specifications

  • Warranty Period: 18 months
  • Enclosure Type: Blank end wall
  • Enclosure Material: Steel
  • NEMA Degree of Protection: NEMA 1
  • Product Certifications: cULus
  • Mercury Free: Yes
  • Toxic Heavy Metal Free: Yes
  • Available Heights: 26", 44", 62", 68" (each 20" W x 5.75" D)

Typical Applications

  • Commercial Building Electrical Distribution
  • Industrial Building Electrical Distribution
  • Data Center Power Distribution
  • Stadium and Large-Facility Electrical Systems
  • Office Building Panelboard Installations
  • Panelboard and Load Center Wiring

Why Square D?

Square D builds the MH Series NQ/NF panelboard enclosure with steel construction and a blank end wall for modular assembly, backed by cULus Listing and an 18-month warranty. Available across four heights — 26", 44", 62", and 68" — while holding a consistent 20" W x 5.75" D footprint, this enclosure gives contractors and facility teams reliable, code-compliant panelboard housing that is ready to install alongside Square D's wide range of NQ/NF circuit breakers and accessories.

Manufacturer Resources

Product Specs

Product Type:
Panelboard Enclosure
Configuration:
NEMA 1 Enclosure
Listing:
cULus
Series:
MH Series
Product Material:
Steel
Department:
Electrical
Product Group:
Power Distribution
Standards:
RoHS
Product Subgroup:
Panelboards & Load Centers
Product Depth:
5.75 in
Product Width:
20 in
Country of Origin:
United States

Square D MH26BE – Frequently Asked Questions

1) What heights does the Square D MH enclosure come in, and does the footprint change?
Four heights: 26, 44, 62, and 68 inches, ordered as MH26BE, MH44BE, MH62BE and MH68BE. The footprint stays the same across all four at 20 inches wide by 5.75 inches deep, so wall width and wall cavity depth planning does not change when you step up a height to take a larger interior.
2) Can a Square D MH26BE enclosure be mounted outdoors or in a wash-down area?
No. The MH blank end wall box is NEMA Type 1, which is general-purpose indoor protection only, with no rating against rain, hose-down, or dust. For outdoor or damp locations you need a Type 3R enclosure instead; Square D offers Type 2, 3R, 4, 4X, 5 and 12 enclosures across the broader line.
3) How deep a wall cavity do I need to recess a Square D MH panelboard box?
The box is 5.75 inches deep, so a standard 2x6 stud wall takes it with room for trim; a 2x4 wall will not, and the box has to be surface mounted or the wall furred out. Width to plan for is 20 inches.
4) Does the MH enclosure include the panelboard interior, trim, or breakers?
No. It is the steel box alone. The NQ or NF interior, the front trim, and the circuit breakers are all separate line items. Order the height that matches the interior you are installing, from 26 up to 68 inches.
5) What is the difference between the Square D MH Series NQ/NF enclosure box and the ABB A-Series RLP panelboard box?
Both are panelboard enclosure boxes sold as the housing rather than the complete panelboard, but they belong to different manufacturers' systems. The Square D MH Series box is built with blank end walls for Square D NQ and NF panelboard interiors, in steel, rated NEMA Type 1 and cULus Listed, at 20 inches wide by 5.75 inches deep in 26, 44, 62, and 68 inch heights. The ABB unit is an A-Series RLP box shipped unassembled as a Pro-Stock enclosure, intended for ABB A-Series panelboard interiors. Because the interior mounting and bussing are brand-specific, an NQ or NF interior is matched to the MH box, not to the ABB A-Series box.
6) I need an enclosure for a wet or washdown area - is the MH Series or the ABB A-Series box the right choice?
Neither of those two is the answer by itself. The Square D MH Series NQ/NF box is rated NEMA Type 1, which is general-purpose indoor protection only, and it is cULus Listed in steel. For damp, outdoor, or washdown locations you want a higher-rated enclosure from the broader Square D line, which spans Type 2, 3R, 4, 4X, 5, and 12 enclosures; Type 1, 2, and 3R/5/12 versions are commonly stocked ready to install. Specify the environment first, then pick the enclosure type.
7) What does "blank end wall" mean on a Square D MH panelboard box?
Blank end wall means the top and bottom end walls ship solid, with no factory knockouts. The installer makes the conduit entries where the job needs them. It also supports Square D's modular assembly, so the box can be cut or modified on site rather than forcing you to feed conduit into pre-punched locations.
8) What is an alternative to the Square D MH box if I am not on NQ/NF gear?
The MH box is specific to Square D NQ and NF panelboards. If your interior is a different line, the ABB AB A-Series RLP panelboard box is the unassembled Pro-Stock enclosure for ABB A-Series RLP gear. Match the box to the interior brand and series; panelboard boxes are not cross-brand interchangeable.
9) If I am standardizing on ABB A-Series panelboards, can I still use a Square D MH26BE box?
No. The MH26BE is a Square D MH Series blank end wall box sized at 20 inches wide by 5.75 inches deep for Square D NQ and NF panelboard interiors. For ABB A-Series work, the matching housing is the ABB A-Series RLP panelboard box, which ships unassembled as a Pro-Stock enclosure. Keep the box and the interior within the same manufacturer's panelboard system.
10) Does the Square D MH enclosure arrive assembled, or do I have to build it like the ABB A-Series box?
The Square D MH Series NQ/NF box is a steel blank end wall enclosure described as ready to install alongside Square D NQ/NF breakers and accessories, with the blank end wall design supporting modular assembly or later modification. The ABB comparable is an A-Series RLP panelboard box supplied unassembled as a Pro-Stock enclosure, so field assembly is part of that workflow. If crew time at the opening of the job matters, that assembly difference is the thing to weigh.
11) Is the Square D MH enclosure made in the USA?
Country of origin is the United States. Material is steel throughout, and the enclosure is mercury free and free of toxic heavy metals, which matters on government and institutional specs that carry sustainable-purchasing language.
How fast can I get the Square D MH26BE delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D MH26BE come with a warranty?
Absolutely. The Square D MH26BE is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D MH26BE?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Square D MH26BE from ZenSupply?
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