nVent A18R184NK - Screw-Cover Drip-Shield Type 3R no Knockouts, 18x18x4, Gray, Steel
nVent

A18R184NK

UPC: 783510134921


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Overview

The nVent Screw-Cover Drip-Shield Type 3R (SKU: A18R184NK) is a robust, gray steel junction box designed to provide superior protection for electrical wiring and control systems in demanding outdoor environments. Engineered with Type 3R compliance, this enclosure safeguards against rain, sleet, snow, and dripping water, making it an ideal solution for industrial, commercial, and utility applications where exposure to the elements is a constant challenge. Manufactured by nVent, a global leader in electrical and thermal management solutions, this junction box combines durability, reliability, and ease of installation to meet the rigorous demands of modern infrastructure. This 18x18x4-inch enclosure features a screw-cover design with no knockouts, offering a clean, secure installation without the need for additional modifications. The absence of knockouts ensures a watertight seal when paired with compatible gaskets and fittings, preventing moisture ingress that could compromise sensitive electrical components. The gray powder-coated steel construction delivers exceptional corrosion resistance, ensuring long-term performance even in harsh outdoor conditions. Professionals across industries such as manufacturing, telecommunications, renewable energy, and transportation rely on Type 3R enclosures like this to protect critical control panels, junction points, and wiring systems from environmental hazards. Selecting the right junction box for outdoor applications requires careful consideration of environmental conditions, enclosure material, and compliance standards. The nVent Type 3R enclosure meets NEMA 3R and IP54 (when properly installed) ratings, providing protection against falling dirt, windblown dust, and light splashing water. Its screw-cover design allows for quick access to internal components for maintenance or reconfiguration, while the sturdy steel construction resists impact and deformation over time. Unlike plastic alternatives, steel enclosures like this offer superior fire resistance and structural integrity, making them a preferred choice for high-risk or high-value installations. Installation of the nVent Screw-Cover Drip-Shield Type 3R is straightforward, with mounting provisions designed for compatibility with standard electrical panels and control cabinets. The enclosure’s depth accommodates a wide range of wiring configurations, terminal blocks, and protective devices, ensuring flexibility for future upgrades or reconfigurations. When paired with nVent’s complementary sealing solutions, such as grommets and conduit fittings, this junction box achieves a near-hermetic seal, minimizing the risk of water intrusion in even the most challenging environments. nVent’s reputation for innovation and quality in electrical protection solutions is well-established, with a portfolio that includes thermal management, electrical enclosures, and connectivity products trusted by engineers and contractors worldwide. The Type 3R Screw-Cover Drip-Shield is no exception, offering a cost-effective, high-performance solution for protecting outdoor electrical systems without compromising on durability or compliance. Whether deployed in industrial facilities, utility substations, or renewable energy installations, this enclosure delivers the reliability and protection that professionals demand. For facilities managers, electrical contractors, and system integrators, choosing an enclosure like the nVent A18R184NK means investing in a product that reduces downtime, lowers maintenance costs, and ensures compliance with safety and regulatory standards. Its combination of Type 3R protection, steel construction, and screw-cover accessibility makes it a versatile choice for a broad spectrum of applications, from control panels in chemical plants to junction points in telecommunications networks. With nVent’s backing, this enclosure stands as a testament to the company’s commitment to delivering solutions that enhance the safety and efficiency of electrical systems in any environment.
  • 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
B
Body Thickness
16 ga
Color
Gray
Color Code
ANSI 61
Depth
13 IN
Depth
4 in
Depth, Maximum
4
Depth, Minimum
4
Door Thickness
14 ga
Door Thickness
16 ga
Finish
Galvanized
Height
44 IN
Height
18 IN
IP Rating
IP32
Knockouts
False
Knockouts Included
No
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
Mounting
28;330 mm;mm
Mounting
1.12;13 in;in
Mounting
Wall Mounting Brackets Available
NEMA Rating
Type 3R
NEMA Rating
NEMA 6
NEMA Rating
3r
Protection Rating
NEMA Type 3R
Series
A
Size
18.00x18.00x4.00 in
Size
18x18x4
Type
Pull and Junction Boxes
Type
Screw-Cover Junction Boxes Type 3R
Type Number
Type 3R
Weight
20.2 lb
Width
18 IN
Width
457 mm
Package Dimensions (L x W x H)
19 IN x 18.75 IN x 5 IN
Package Dimensions (L x W x H)
48.26 cm x 47.625 cm x 12.7 cm
Package Weight (Imperial)
20.200 L
Package Weight (Metric)
9.163 kg
Screw-Cover Drip-Shield Type 3R no Knockouts, 18x18x6, Gray, Steel

A18R186NK

Screw-Cover Drip-Shield Type 3R no Knockouts, 18x18x6, 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)

How to Install the A18R184NK Controller

This guide provides step-by-step instructions for installing and configuring the A18R184NK Controller, ensuring proper wiring and setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Wire connectors, Padlock staple

  1. Mount the controller

    Secure the A18R184NK controller to the designated mounting surface using the provided mounting screws. Ensure it is level and firmly attached.

  2. Connect the wiring

    Use wire strippers to prepare the wires, then connect them to the appropriate terminals on the controller. Refer to the wiring diagram for correct connections.

  3. Secure the enclosure

    Insert the padlock staple through the slot in the bottom of the enclosure from the inside until it snaps in place to secure the enclosure.

  4. Verify connections

    Use a multimeter to check the voltage and ensure all connections are secure and functioning correctly before powering on the controller.

  5. Power on the controller

    Turn on the power supply to the controller and observe the startup sequence. Ensure all indicators are functioning as expected.

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.