Authorized nVent Distributor
nVent A4418RT - Wiring Trough NEMA Type 3R, 4.00x4.00x18.00, Gray, Steel

nVent A4418RT Wiring Trough NEMA Type 3R, 4.00x4.00x18.00, Gray, Steel

UPC: 783510166588


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 Type 3R Wiring Trough (SKU: A4418RT) is a rain-tight, outdoor-rated wiring solution designed for environments exposed to moisture, dust, and incidental water ingress. This 4.00 x 4.00 x 18.00 inch (102 x 102 x 457 mm) trough provides reliable protection for wire and cable management in harsh conditions. Constructed from 16-gauge galvanized steel with an unpainted gray finish, it resists corrosion and UV degradation for long-term outdoor use. The seamless, drip-shield top and seam-free sides prevent water infiltration, while the removable screw-cover design enables easy access for installation, maintenance, or reconfiguration. The A4418RT is ideal for outdoor lighting systems, telecommunications infrastructure, utility networks, industrial machinery, and HVAC installations where environmental resilience is critical. Optional Padlock Hasp Kit (sold separately) enhances security for sensitive applications.
  • Drip shield top and seam-free sides, front, and back
  • Slip-on removable cover
  • Embossed mounting holes on back of enclosure
  • Provision for padlocking
  • No gasketing or knockouts
  • 16 or 14 gauge plated steel

Specifications

Application
Power Distribution
Color
Gray
Color
Grey
Color Code
ANSI 61
Depth
457
Depth
18 in
Depth
457.2 mm
Depth
13 IN
Finish
Galvanized
Height
102 mm
Height
4 IN
IP Rating
IP32
Material
Mild Steel;Steel
Material
Mild Steel
Material
Steel
Modification Services
Yes
NEMA Rating
Type 3R
NEMA Rating
3R Weather-resistant, except dust
Protection Rating
NEMA Type 3R
Size
4.00x4.00x18.00
Size
4.00x4.00x12.00 in
Thickness
1.52 mm
Thickness
16 ga
Thickness
51.40mm (2.024")
Type
Trough
Type
Commercial Wiring Troughs;Trough
Weight
7.4 lb
Width
102
Width
4 IN
Width
23 IN
Wireway
Wiring Troughs
Package Dimensions (L x W x H)
20 IN x 5.9 IN x 4.8 IN
Package Dimensions (L x W x H)
50.8 cm x 14.986 cm x 12.192 cm
Package Weight (Imperial)
7.400 L
Package Weight (Metric)
3.357 kg
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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.