nVent A303012GSC - Screw-Cover Gasketed Type 3, 30.00x30.00x12.00, Galvanized, Steel
nVent

A303012GSC

UPC: 783510505202


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Installation Instructions

Contact for Pricing

Overview

The nVent Screw-Cover Gasketed Type 3 Enclosure (SKU: A303012GSC) is a premium-grade, galvanized steel junction box engineered for reliable performance in demanding industrial environments. Designed to meet Type 3 enclosure standards, this robust enclosure provides superior protection against windblown dust, rain, and incidental contact, making it an ideal choice for outdoor and indoor applications where environmental resilience is critical. Manufactured by nVent, a global leader in electrical and thermal management solutions, this enclosure combines durability, compliance, and ease of installation to deliver long-term value in commercial, industrial, and utility settings. This enclosure measures 30.00" x 30.00" x 12.00" (L x W x D), offering ample interior space for housing electrical components, wiring, or terminal blocks. The galvanized steel construction ensures resistance to corrosion and mechanical stress, while the screw-cover design with integrated gasket provides a secure, tamper-resistant seal. The gasketed cover is designed to maintain protection even under exposure to harsh weather conditions, including heavy rain, dust storms, and high winds, ensuring uninterrupted operation of critical systems. Typical applications for the nVent Type 3 Enclosure include: - **Wiring and Junction Boxes:** Ideal for protecting electrical connections in commercial buildings, manufacturing plants, and data centers. - **Pull Boxes:** Used in conduit systems to facilitate wire pulling and reduce tension during installation. - **Terminal Boxes:** Suitable for housing terminal blocks, relays, and other control components in automation and process control systems. - **Outdoor Lighting Systems:** Provides a secure housing for electrical components in street lighting, parking lot lighting, and landscape lighting applications. - **HVAC and Refrigeration:** Used in heating, ventilation, and air conditioning systems to protect sensitive electrical components from environmental contaminants. Installation is straightforward, with pre-drilled knockouts for conduit entry and mounting holes for secure attachment to walls, poles, or other structures. The enclosure’s design allows for easy access to internal components for maintenance or upgrades, while the gasketed cover ensures a tight seal to prevent moisture ingress. For professionals seeking a reliable, code-compliant solution, the nVent Type 3 Enclosure is a trusted choice that meets NEC (National Electrical Code) and UL (Underwriters Laboratories) standards for Type 3 enclosures. nVent’s reputation for innovation and quality is reflected in this enclosure, which is part of their extensive line of electrical enclosures designed to meet the rigorous demands of modern industrial applications. Whether used in a manufacturing facility, a utility substation, or a commercial building, the nVent Screw-Cover Gasketed Type 3 Enclosure delivers the performance and durability required to protect valuable electrical assets and ensure system reliability. Choose nVent for solutions that combine engineering excellence with real-world reliability.
  • 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
  • Manufactured by nVent, a trusted leader in electrical solutions

Specifications

Application
Power Distribution
Body Thickness
16 ga
Body Thickness
12 ga
Color
Unpainted
Cover Screw Quantity
12
Depth
13 IN
Depth
12 in
Depth, Maximum
12
Depth, Minimum
12
Door Thickness
10 ga
Door Thickness
14 ga
Finish
Galvanized
Height
30 IN
Height
44 IN
IP Rating
IP66
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
Nema Rating
Type 3
NEMA Rating
3
Protection Rating
NEMA Type 3
Size
30.00x30.00x12.00
Size
30.00x30.00x12.00 in
Type
Pull and Junction Boxes
Type
Screw-Cover Pull Boxes Type 1/Type3
Type Number
Type 4
Weight
106 lb
Width
30 IN
Width
762 mm
Package Dimensions (L x W x H)
36.5 IN x 36.5 IN x 12.75 IN
Package Dimensions (L x W x H)
92.71 cm x 92.71 cm x 32.385 cm
Package Weight (Imperial)
106.000 L
Package Weight (Metric)
48.082 kg
Screw-Cover Gasketed Type 3, 36.00x36.00x12.00, Galvanized, Steel

A363612GSC

Screw-Cover Gasketed Type 3, 36.00x36.00x12.00, 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 A303012GSC Controller

This guide provides step-by-step instructions for mounting and wiring the A303012GSC Controller securely.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Sealing washers, Mounting foot studs, Nuts

  1. Prepare mounting location

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

  2. Install mounting feet

    Insert sealing washers into the holes from the outside, ensuring the tapered cone is facing toward the hole. Then, insert the mounting foot studs through the sealing washers.

  3. Secure the controller

    Turn the enclosure upright and thread nuts onto the mounting foot studs. Tighten the nuts to 200 in-lbs to secure the controller firmly in place.

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.