nVent A12126GSC - Screw-Cover Gasketed Type 3, 12.00x12.00x6.00, Galvanized, Steel
nVent

A12126GSC

UPC: 783510561505


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Installation Instructions

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Overview

The nVent Screw-Cover Gasketed Type 3 Enclosure (SKU: A12126GSC) is a rugged, galvanized steel junction box engineered to protect critical electrical connections in demanding industrial and commercial environments. Designed for applications subject to windblown dust, rain, and other environmental contaminants, this 12.00" x 12.00" x 6.00" enclosure provides a secure, NEMA Type 3-rated housing for wiring, junction, pull, or terminal connections. Built by nVent—a leader in thermal management and electrical protection solutions—this enclosure combines durability with ease of installation, making it an ideal choice for professionals who require reliable performance without compromise. **Key Features and Construction** The A12126GSC is constructed from high-quality galvanized steel, offering superior corrosion resistance and structural integrity in outdoor and indoor environments where exposure to moisture and particulates is a concern. The screw-cover design ensures a tight seal, while the integrated gasket provides an additional barrier against dust and water ingress, meeting NEMA Type 3 standards for protection against falling dirt and rain. The enclosure’s 12" x 12" footprint offers ample interior space for routing and terminating cables, accommodating multiple conductors and connection points with ease. **Typical Applications and Industry Use Cases** This enclosure is widely used in industrial facilities, manufacturing plants, and commercial buildings where electrical systems require robust protection from environmental hazards. Common applications include: - **Junction Boxes:** Housing splices and connections in power distribution systems. - **Pull Boxes:** Facilitating cable pulls in conduit runs to reduce tension and simplify installation. - **Terminal Boxes:** Managing connections for sensors, actuators, and control devices in automation systems. - **Outdoor Electrical Enclosures:** Protecting outdoor lighting, HVAC controls, and communication equipment. Industries that benefit from this enclosure include oil and gas, chemical processing, water treatment, food and beverage, and renewable energy, where harsh conditions demand reliable electrical infrastructure. **Installation and Compatibility Considerations** Professionals select the A12126GSC for its compatibility with standard mounting hardware and conduit systems, ensuring seamless integration into existing electrical setups. The enclosure’s depth of 6.00" provides sufficient room for wire bending and termination, while its square design optimizes space utilization in tight installations. For added convenience, nVent offers compatible accessories such as mounting brackets, gland plates, and cable entry fittings to streamline the installation process. **Why Choose nVent?** As a trusted manufacturer of electrical protection and thermal management solutions, nVent delivers products that meet the highest standards of performance and reliability. The A12126GSC reflects the company’s commitment to innovation, durability, and safety, ensuring that electrical systems remain protected and operational even in the most challenging conditions. With a global reputation for quality and a focus on engineering solutions that address real-world challenges, nVent stands as a preferred partner for professionals who demand excellence in their electrical infrastructure. **Technical Specifications Summary** - **Dimensions:** 12.00" x 12.00" x 6.00" (304.8mm x 304.8mm x 152.4mm) - **Material:** Galvanized steel for corrosion resistance - **Protection Rating:** NEMA Type 3 (suitable for windblown dust and rain) - **Cover Type:** Screw-cover with integrated gasket - **Mounting:** Compatible with standard hardware and conduit systems For professionals seeking a dependable, high-performance enclosure for junction, pull, or terminal box applications, the nVent Screw-Cover Gasketed Type 3 Enclosure (A12126GSC) delivers the durability, protection, and ease of installation required to safeguard critical electrical connections in any environment.
  • Captivated stainless steel cover screws thread into sealed wells
  • Oil-resistant gasket and adhesive
  • Seams continuously welded and ground smooth
  • No holes or knockouts
  • Grounding stud on inside back of box
  • 14 or 12 gauge G-90 grade galvanized steel bodies
  • 12 or 10 gauge G-90 grade galvanized steel covers

Specifications

Application
Power Distribution
Body Thickness
16 ga
Body Thickness
14 ga
Color
Unpainted
Cover Screw Quantity
8
Depth
13 IN
Depth
6 in
Depth, Maximum
6
Depth, Minimum
6
Door Thickness
14 ga
Door Thickness
12 ga
Finish
Galvanized
Height
12 IN
Height
44 IN
IP Rating
IP66
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
NEMA Rating
3
Protection Rating
NEMA Type 3
Size
12.00x12.00x6.00 in
Type
Pull and Junction Boxes
Type
Screw-Cover Pull Boxes Type 1/Type3
Type Number
Type 4
Weight
13.3 lb
Width
305 mm
Width
12 IN
Package Dimensions (L x W x H)
12.5 IN x 12.4 IN x 6.2 IN
Package Dimensions (L x W x H)
31.75 cm x 31.496 cm x 15.748 cm
Package Weight (Imperial)
13.300 L
Package Weight (Metric)
6.033 kg
Screw-Cover Gasketed Type 3, 12.00x10.00x6.00, Galvanized, Steel

A12106GSC

Screw-Cover Gasketed Type 3, 12.00x10.00x6.00, Galvanized, 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)

AB434

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 A12126GSC Controller

This guide provides step-by-step instructions for mounting and wiring the A12126GSC Controller securely.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Sealing washers, Mounting foot studs, Nuts

  1. Prepare mounting holes

    Locate the mounting foot stud locations using the provided dimensions. Use a center punch to mark the hole centers, and drill four 0.5 inch (13 mm) diameter holes.

  2. Insert sealing washers

    Insert sealing washers into the drilled holes from the outside, ensuring the tapered cone is facing toward the hole.

  3. Attach mounting foot studs

    Insert the mounting foot studs through the sealing washers and turn the enclosure upright. Thread nuts onto the mounting foot studs and tighten to 200 in-lbs.

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.