Authorized nVent Distributor
nVent A18R124 - Screw-Cover Drip-Shield Type 3R With Knockouts, 18x12x4, Gray, Steel

nVent A18R124 Screw-Cover Drip-Shield Type 3R With Knockouts, 18x12x4, Gray, Steel

UPC: 783510133931


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 A18R124 is a Type 3R-rated, screw-cover steel enclosure designed for outdoor electrical control and junction applications. Constructed from 16-gauge steel with a gray painted finish, the A18R124 features a secure screw-cover design for weather-tight sealing and 4 cover screws for reliable access control. Pre-punched knockouts along the A and B sides (patterns C-D-E-F-G on B sides, A-B-C-D-E-F-G-H-I on A sides) enable flexible conduit entry and wiring installation. The enclosure’s drip-shield design prevents water ingress, safeguarding sensitive electrical components from corrosion, short circuits, and premature failure. Common applications include motor controls, HVAC systems, irrigation controllers, outdoor lighting, and communication equipment. The A18R124’s durable construction and Type 3R rating ensure long-term reliability in outdoor installations where environmental protection is critical.
  • Drip shield top and seam-free sides, front, and back protect from rain, snow, or sleet
  • Slip-on removable cover fastened with plated steel screws along bottom edge
  • Handles on larger sizes (see table)
  • Embossed mounting holes on back of enclosure
  • Knockouts in bottom of 16 and 14 gauge enclosures
  • Provision for padlocking
  • No gasketing
  • Enclosures are finished with paint over plated surfaces
  • Top and bottom thickness gauge is the same as the body thickness gauge unless otherwise noted in table

Specifications

Application
Power Distribution
Body Style
A
Body Thickness
16 ga
Color
Gray
Color Code
ANSI 61
Depth
13 IN
Depth
4 in
Depth, Maximum
4
Depth, Minimum
4
Door Thickness
16 ga
Door Thickness
14 ga
Finish
Galvanized
Height
44 IN
Height
18 IN
IP Rating
IP32
Knockout Pattern
C-D-E-F-G
Knockouts
True
Knockouts Included
Yes
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
Mounting
Wall Mounting Brackets Available
Mounting
27;57 mm;mm
Mounting
1.06;2.25 in;in
NEMA Rating
NEMA 6
NEMA Rating
3r
Protection Rating
NEMA Type 3R
Size
18.00x12.00x4.00 in
Type
Pull and Junction Boxes
Type
Screw-Cover Junction Boxes Type 3R
Type Number
Type 3R
Weight
13.2 lb
Width
305
Width
12 IN
Width
305 mm
Package Dimensions (L x W x H)
17.9 IN x 12.5 IN x 4.1 IN
Package Dimensions (L x W x H)
45.466 cm x 31.75 cm x 10.414 cm
Package Weight (Imperial)
13.200 L
Package Weight (Metric)
5.988 kg
Screw-Cover Drip-Shield Type 3R With Knockouts, 12x10x4, Gray, Steel

A12R104

Screw-Cover Drip-Shield Type 3R With Knockouts, 12x10x4, Gray, Steel
The NEMA 4/4X/12 features a standard padlock-able feature with a single or (2) single point latches depending on the enclosure size. They are galvanealed steel coated. (Padlocks not included)

AB314

The NEMA 4/4X/12 features a standard padlock-able feature with a single or (2) single point latches depending on the enclosure size. They are galvanealed steel coated. (Padlocks not included)
Screw-Cover Drip-Shield Type 3R no Knockouts, 24x24x12, Gray, Steel

A24R2412NK

Screw-Cover Drip-Shield Type 3R no Knockouts, 24x24x12, Gray, Steel
Screw-Cover Drip-Shield Type 3R With Knockouts, 18x18x10, Gray, Steel

A18R1810

Screw-Cover Drip-Shield Type 3R With Knockouts, 18x18x10, Gray, Steel
Screw-Cover Drip-Shield Type 3R no Knockouts, 12x12x8, Gray, Steel

A12R128NK

Screw-Cover Drip-Shield Type 3R no Knockouts, 12x12x8, Gray, Steel
Screw-Cover Drip-Shield Type 3R no Knockouts, 18x18x6, Gray, Steel

A18R186NK

Screw-Cover Drip-Shield Type 3R no Knockouts, 18x18x6, Gray, Steel
Screw-Cover Drip-Shield Type 3R With Knockouts, 12x8x6, Gray, Steel

A12R86

Screw-Cover Drip-Shield Type 3R With Knockouts, 12x8x6, Gray, Steel
Screw-Cover Drip-Shield Type 3R no Knockouts, 12x10x4, Gray, Steel

A12R104NK

Screw-Cover Drip-Shield Type 3R no Knockouts, 12x10x4, Gray, Steel

Frequently Asked Questions

How many cover screws does the A18R124 have?

The A18R124 enclosure includes 4 cover screws for secure closure.

What knockout patterns are available on the A18R124?

The A sides feature knockouts A-B-C-D-E-F-G-H-I, while the B sides feature knockouts C-D-E-F-G.

What is the Type 3R rating for the A18R124?

Type 3R rating protects against falling rain, sleet, snow, and dripping water.

How to Repaint a Hoffman Enclosure

Guide on preparing and repainting Hoffman enclosures with TGIC polyester powder coating.

Estimated time: 1h

Tools needed:

180 grit sandpaper, 220 or 240 grit sandpaper (optional), Solvent, Paint manufacturer's recommended tools

Supplies needed:

TGIC polyester powder coated Hoffman enclosure, Paint compatible with TGIC polyester powder coating, Primer (if recommended by paint manufacturer)

  1. Prepare the Surface

    Thoroughly sand all enclosure surfaces with 180 grit sandpaper. If sanding marks are objectionable, finish sanding with 220 or 240 grit sandpaper. Wet wipe all surfaces with a solvent to remove any possible contaminants. Consult with your paint manufacturer for proper cure time and hardness prior to testing the paint for adhesion.

  2. Select Appropriate Paint

    Choose a paint that exhibits good adhesion properties over polyester powder. Recommended types include two-component epoxies, some two-component polyurethanes, and alkyd baking enamels. If using alkyd finishes, do not bake at temperatures exceeding 150°F to avoid discoloration.

  3. Apply Paint

    Apply two or three medium to light coats of paint. Allow two to three minutes flash off between coats. Allow paint to cure adequately according to the paint manufacturer's instructions.

  4. Test Adhesion

    After the paint has cured adequately, test the paint for adhesion. Consult with your paint manufacturer for proper cure time and hardness prior to testing.

  5. Test Repainting Process

    NOTICE: Always test the repainting process on an inconspicuous area prior to full application.

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.