nVent SSTB304012-316 - Terminal Box, SSTB, 300x400x120mm, Brushed, Stainless 316
nVent

SSTB304012-316

UPC: 783510529253


Documents & Media
Installation Instructions

Contact for Pricing

Overview

The nVent SSTB304012-316 stainless steel terminal box is a robust, corrosion-resistant enclosure designed to protect electrical connections in demanding indoor and outdoor environments. Engineered with 316-grade stainless steel and a brushed finish, this terminal box ensures long-term durability against harsh conditions, including exposure to moisture, dust, and corrosive substances. With an IP66 ingress protection rating, it effectively prevents the ingress of water and particulate matter, safeguarding critical electrical components from failure and minimizing unplanned downtime in industrial operations. This terminal box, measuring 300x400x120mm, is part of nVent’s SSTB series, a trusted range of stainless steel enclosures known for their reliability and versatility. The brushed finish not only enhances corrosion resistance but also provides a professional appearance suitable for visible installations in commercial and industrial facilities. Professionals across industries such as oil and gas, chemical processing, water treatment, and food and beverage rely on the SSTB series for its ability to withstand extreme environments while maintaining operational integrity. Key applications for the nVent SSTB304012-316 include: - **Outdoor electrical installations**: Ideal for protecting junction boxes, control panels, and wiring connections in exposed outdoor locations, such as substations, solar farms, or telecommunications towers. - **Corrosive environments**: Perfect for chemical plants, refineries, and coastal installations where salt spray, chemicals, or humidity pose significant risks to standard enclosures. - **Hygienic and washdown areas**: Suitable for food processing, pharmaceutical, and cleanroom environments where frequent cleaning and sanitation are required. - **Marine and offshore applications**: Resistant to saltwater corrosion, making it a reliable choice for marine vessels, offshore platforms, and coastal infrastructure. - **Industrial automation and control systems**: Provides secure housing for PLCs, sensors, and other control components in manufacturing plants and automation environments. The SSTB304012-316 is designed for easy installation and maintenance, featuring a modular design that accommodates various terminal configurations and cable entry points. Its stainless steel construction ensures compatibility with a wide range of industry standards, including ATEX and IECEx for hazardous locations, where explosion-proof and flame-retardant properties are critical. nVent’s reputation for engineering high-performance electrical solutions is underscored by the SSTB series, which is trusted by engineers and facility managers worldwide for its durability, compliance, and ease of integration. When selecting a terminal box for your application, consider the environmental challenges your installation will face. The nVent SSTB304012-316 is an excellent choice for professionals who prioritize longevity, safety, and compliance in their electrical infrastructure. Its IP66 rating ensures protection against heavy seas or powerful jets of water, while its stainless steel construction provides unmatched resistance to rust and corrosion. Whether you’re upgrading an existing system or designing a new one, this terminal box delivers the reliability and performance required to keep operations running smoothly, even in the most demanding conditions.
  • Material: AISI 304L pre-grained stainless steel / AISI 316L (on request). Body: 1 mm. Cover: 1.5 mm.
  • Body: Folded and seam welded. Four M6x13 studs for bottom profile / mounting plate fixation. For ease of installation, each back corner of the enclosure is laser-marked to precisely indicate where to drill holes and affix AWS wall mounting brackets.
  • Gasket: Sealing is ensured by an injected polyurethane gasket. For AISI 316L, sealing is ensured by an injected silicone gasket.
  • Earthing: M8x18 mm earthing studs in body and cover, M8 nuts, earthing washers and earthing labels.
  • Finish: 400 pre-grained stainless steel.
  • Delivery: Body, cover, cover screws, fixing screws, cover plugs and earthing facilities.
  • Delivery: Body, cover, cover screws, fixing screws, cover plugs and earthing facilities.

Specifications

Application
Factory Automation and Process Control; Corrosive Environments; Hazardous Environments
Body Thickness
18 ga
Body Thickness
1 mm
Cable Entry
No
Color
Unpainted
Construction
Body: 18 gauge Door: 16 gauge
Cubic Capacity
879 Cu-in
Depth
120 mm
Depth
4.72 in
Door Thickness
16 ga
Door Thickness
1.5 mm
Finish
Brushed
Height
11.81 in
Height
300 mm
Insulation
No
Knockouts
No
Material
Stainless Steel 316
Mounting
Wall Mounted
Number of Outlet
1
Protection Rating
NEMA Type 12
Size
11.81 x 15.75 x 4.72 inch
Type
Stainless Steel Terminal and Junction Boxes
Weight
9.48 lb
Weight
4.3 kg
Width
15.75 in
Width
400 mm
Package Dimensions (L x W x H)
16.12 IN x 12.19 IN x 16.37 IN
Package Dimensions (L x W x H)
40.9448 cm x 30.9626 cm x 41.5798 cm
Package Weight (Imperial)
10.900 L
Package Weight (Metric)
4.944 kg
Terminal Box, SSTB, 300x500x120mm, Brushed, Stainless 316

SSTB305012-316

Terminal Box, SSTB, 300x500x120mm, Brushed, Stainless 316

How to Prepare for SSTB304012-316 Installation

This guide details essential safety precautions and preparatory steps for installing the SSTB304012-316, focusing on mounting surface requirements and maintaining enclosure environmental integrity.

Estimated time: 20m

Tools needed:

Measuring tape, Metal shears (if cutting plate), Drill (if securing plate)

Supplies needed:

Galvanized steel plate (if needed), Uncoated steel plate (if needed), Enclosure closing devices (with matching environmental ratings, if customizing)

  1. Assess Mounting Surface for Combustibility

    Before mounting the SSTB304012-316, carefully assess the surface where the equipment will be installed. Determine if the surface is combustible to ensure proper safety measures are taken.

  2. Install Protective Floor Plate (if required)

    If mounting the SSTB304012-316 on or over a combustible surface, install a protective floor plate. This plate must be at least 1.43 mm galvanized steel or 1.6 mm uncoated steel, and extend at least 150 mm beyond the equipment on all sides to prevent fire hazards.

  3. Ensure Enclosure Environmental Integrity

    When customizing the enclosure for the SSTB304012-316, ensure that any openings created are closed using devices with environmental ratings identical to the enclosure itself. This is crucial for maintaining the enclosure's environmental integrity and protecting the equipment from environmental factors.

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.