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nVent A24H20BLP3PT - Continuous Hinge Enclosure with 3-Point Latch Type 4, 24x20x8, Gray, Mild Steel

nVent A24H20BLP3PT Continuous Hinge Enclosure with 3-Point Latch Type 4, 24x20x8, Gray, Mild Steel

UPC: 783510279066

Documents & Media
Installation Instructions

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent HOFFMAN Continuous Hinge Enclosure (SKU: A24H20BLP3PT) is a rugged, Type 4-rated solution designed for demanding industrial environments where durability, security, and accessibility converge. Engineered by nVent, a global leader in thermal management and electrical protection solutions, this enclosure combines robust construction with innovative features to safeguard critical electrical and electronic components in both indoor and outdoor applications. With a 24x20x8 inch footprint and gray mild steel construction, it delivers exceptional strength-to-weight ratio while resisting corrosion and environmental stressors common in industrial settings. At the heart of this enclosure’s functionality is its exclusive PowerGlide Handle with 3-point latching, a patented HOFFMAN innovation that ensures a secure seal while enabling effortless access. The continuous hinge design eliminates weak points associated with traditional hinges, providing a seamless, tamper-resistant seal that meets NEMA Type 4 standards for protection against windblown dust, rain, splashing water, and hose-directed water. This makes it an ideal choice for applications in manufacturing plants, water treatment facilities, food processing plants, and outdoor substations where ingress protection and operational reliability are non-negotiable. Professionals in industries such as oil & gas, chemical processing, utilities, and telecommunications rely on Type 4 enclosures to house PLCs, motor controllers, variable frequency drives (VFDs), and other sensitive equipment. The 3-point latch system distributes locking force evenly across the door, preventing warping and ensuring a consistent seal over time—critical for maintaining NEMA Type 4 compliance in fluctuating temperatures and high-humidity conditions. The gray powder-coated finish provides additional corrosion resistance, extending service life in harsh environments. Installation is streamlined thanks to the enclosure’s wall-mount design, which includes pre-drilled mounting holes for secure attachment to concrete, steel, or other structural surfaces. The single-door configuration simplifies access for maintenance personnel while minimizing installation time and cost. For added security, the PowerGlide Handle supports padlocking, allowing operators to restrict unauthorized access without compromising operational efficiency. nVent’s reputation for engineering excellence is underscored by decades of innovation in electrical protection solutions. The HOFFMAN brand, now part of the nVent portfolio, has been a trusted name in industrial enclosures since 1947, known for products that balance performance, durability, and ease of use. Whether deployed in a climate-controlled control room or an exposed outdoor location, the A24H20BLP3PT enclosure delivers the reliability and protection that engineers and facility managers demand. Pair it with compatible accessories like gland plates, louvers, or heaters to tailor the solution to your specific application requirements.
  • Internal 3-point latch and padlocking PowerGlide Handle for quick, secure access
  • Seamless foam-in-place gasket ensures a continuous seal
  • 90-degree body flange opening channels away liquids
  • External, welded-on mounting feet for easy installation
  • Continuous hinge provides strength and ruggedness
  • Removable heavy gauge stainless steel continuous hinge pin
  • Seems continuously welded and ground smooth
  • 14 or 16 gauge steel

Specifications

Application
Controls and Drives
Color
Gray
Color
Grey
Color Code
ANSI 61
Conductive Panel
A24P20G
Data Pocket
Small
Depth
203 mm
Depth
8 in
Depth
8 mm
Finish
Powder Coated
Height
610 mm
Height
24 in
IP Rating
IP66
Material
Steel
Material
Mild Steel
Modification Services
No
Mounting Type
Wall Mount
NEMA Rating
12
Nema Rating
Type 4
NEMA Rating
12 Indoor, dust-resistant
Panel
A24P20
Panel Size
533 x 432 mm
Panel Size
21.00 x 17.00 in
Product Type
Disconnect
Protection Rating
NEMA Type 12
Series
Hoffman
Size
24.00 x20.00 x8.00 in
Size
24X20X8
Thickness
51.40mm (2.024")
Thickness
1.9 mm
Thickness
14 ga
Type
Mild Steel Wall Mounted Industrial Enclosures
Type Number
Type 4
Weight
41.1 lb
Width
20 IN
Width
508 mm
Package Dimensions (L x W x H)
28.9 IN x 21.5 IN x 12.9 IN
Package Dimensions (L x W x H)
73.406 cm x 54.61 cm x 32.766 cm
Package Weight (Imperial)
41.100 L
Package Weight (Metric)
18.643 kg
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How to Install the A24H20BLP3PT Enclosure

Instructions for mounting and adjusting the A24H20BLP3PT enclosure, including door and panel installation.

Estimated time: 1h

Tools needed:

Screwdriver, Punch, Vibrating hammer (electric or air powered)

Supplies needed:

Fasteners, Metal shims, Hinge pin

  1. Prepare for Mounting

    Identify whether the enclosure is wall-mounted or floor-mounted. Wall-mounted enclosures have internal mounting means or external feet. Floor-mounted enclosures have floor stands with mounting plates. Ensure you have the proper fasteners for your chosen mounting method.

  2. Mount the Enclosure

    Secure the enclosure to the wall or floor using the appropriate fasteners in all mounting holes. For floor-mounted enclosures, ensure the floor is level or use shims under the enclosure corners as needed. For wall-mounted enclosures, ensure the mounting surface is flat to prevent door issues.

  3. Adjust Door Closing (if necessary)

    If the door does not open and close properly, or if it sags due to heavy equipment, adjust as follows: For single-door enclosures, place metal shims behind the bottom mounting foot closest to the hinge if the top of the door strikes the body opening lip. For two-door enclosures, place metal shims under the corners if the floor is not level, ensuring the doors meet evenly. Bolt the enclosure in place with doors closed before installing shims.

  4. Install the Interior Panel

    When installing the interior panel, you may need to slightly bend mounting studs to align the panel. Position the panel on the studs that line up, then use a screwdriver inserted through the panel holes to pry the remaining studs into place.

  5. Remove or Invert Print Pocket

    The print pocket on the door can be inverted or removed entirely as needed.

  6. Install Hubs and Devices

    Use agency Type rated hubs or devices of equal rating to the enclosure. Ensure hole openings and installation follow manufacturer instructions. Verify adequate hole-to-hole spacing for tightening and that installation does not interfere with the enclosure's gasket or edges. Conduit connections should be on the top, bottom, and sides.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.