nVent STB303012 - Terminal Box, STB, 300x300x120mm, Light Gray, Mild Steel
nVent

STB303012

UPC: 783510529574

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Installation Instructions

Contact for Pricing

Overview

The nVent STB 300x300x120mm terminal box (SKU: STB303012) offers robust protection for electrical components in demanding industrial environments. Constructed from durable mild steel and finished in a light gray hue, this enclosure is engineered to meet stringent IP66 ingress protection standards. This means it is completely dust-tight and protected against powerful water jets, making it an ideal solution for applications where environmental contaminants are a significant concern. The STB series is specifically designed for reliability and longevity, ensuring your critical electrical connections and sensitive equipment remain safe from water and dust ingress. This protection directly translates to reduced risk of component failure and, consequently, minimizes costly unplanned downtime. By preventing the intrusion of moisture and particulate matter, the STB terminal box safeguards the integrity of your electrical systems, contributing to operational efficiency and safety. Available off-the-shelf in a wide array of sizes, the STB range provides flexibility for diverse project requirements. This particular model, with dimensions of 300x300x120mm, offers ample internal space for terminal blocks, wiring, and smaller control devices. Its straightforward design facilitates easy installation and maintenance, a crucial factor in fast-paced industrial settings. Key features and benefits of the nVent STB terminal box include: * **Superior Ingress Protection:** IP66 rating ensures complete protection against dust and high-pressure water jets, safeguarding internal components. * **Durable Construction:** Made from robust mild steel for exceptional mechanical strength and longevity in harsh industrial conditions. * **Corrosion Resistance:** The light gray finish provides an additional layer of protection against environmental degradation. * **Versatile Sizing:** Part of a comprehensive range of sizes, allowing for optimal selection based on application needs. * **Reduced Downtime:** By preventing component failure due to environmental factors, it enhances operational continuity. * **Ease of Installation:** Designed for straightforward mounting and wiring, simplifying project timelines. This terminal box is well-suited for a variety of applications across numerous industries, including manufacturing plants, processing facilities, power generation, and water treatment. Whether housing control relays, power distribution terminals, or signal conditioning equipment, the STB 300x300x120mm enclosure provides a secure and reliable housing. nVent's reputation for quality and innovation in electrical enclosure solutions makes the STB series a trusted choice for professionals seeking dependable protection for their electrical infrastructure. The UNSPSC code 39121327 further categorizes this product within electrical equipment and supplies, specifically for junction and terminal boxes.
  • Material: 1.2 mm mild steel.
  • Body: Folded and seam welded. Four 8.5 mm diameter holes for wall fixing. Four M6 × 13 studs for bottom profiles / mounting plate fixation.
  • Gasket: Sealing is ensured by an injected one piece polyurethane gasket.
  • Earthing: M8x18 mm earthing studs in body and cover, M8 nuts, earthing washers and earthing labels.
  • Protection: IP 66, TYPE 4, 12, IK 08.
  • Finish: RAL 7035, structured powder coating.
  • Delivery: Body, cover, cover screws, fixing screws, cover plugs, and earthing facilities.

Specifications

Application
Controls and Drives;Factory Automation and Process Control
Application
Factory Automation and Process Control; Controls and Drives
Body Thickness
1.2 mm
Body Thickness
16 ga
Body Thickness
18 ga
Cable Entry
No
Color
Light Gray;RAL 7035 Light Gray
Color
Light Gray
Color Code
RAL 7035
Construction
Body: 18 gauge Door: 18 gauge
Cubic Capacity
659 in3
Depth
13 IN
Depth
4.72
Depth
120
Door Thickness
1.2 mm
Door Thickness
14 ga
Door Thickness
18 ga
Finish
Powder Coated
Height
44 IN
Height
11.81
Height
300
Insulation
No
IP Rating
IP66
Material
Mild Steel
Mounting
Wall Mounted
NEMA Rating
NEMA Type 4 NEMA Type 12 NEMA Type 13
NEMA Rating
4
Number Of Outlet
1
Protection Rating
NEMA Type 4
Series
STB
Size
11.81 x 11.81 x 4.72 inch
Size
300x300x120mm
Type
Mild Steel Terminal and Junction Boxes
Type
Mild Steel Industrial Terminal and Junction Boxes
Weight
8.18 lb
Weight
32 lbs./100ft
Width
23 IN
Width
11.81
Width
300
Package Dimensions (L x W x H)
12.19 IN x 12.19 IN x 5.35 IN
Package Dimensions (L x W x H)
30.9626 cm x 30.9626 cm x 13.589 cm
Package Weight (Imperial)
8.180 L
Package Weight (Metric)
3.710 kg
Terminal Box, STB, 300x300x80mm, Light Gray, Mild Steel

STB303008

Terminal Box, STB, 300x300x80mm, Light Gray, Mild Steel

How to Install the STB303012 Controller

This guide provides step-by-step instructions for the installation and initial setup of the STB303012 Controller.

Estimated time: 1h

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Wire connectors, Floor plate (if applicable)

  1. Prepare the installation area

    Ensure the installation surface is clean and free of debris. If mounting on a combustible surface, install a floor plate of at least 1.43 mm galvanized or 1.6 mm uncoated steel, extending at least 150 mm beyond the equipment on all sides.

  2. Mount the controller

    Secure the STB303012 Controller to the DIN rail using the integrated clips. Ensure the controller is level and firmly attached.

  3. Connect the wiring

    Use wire connectors to connect the power supply and input/output wires to the designated terminals on the controller. Verify all connections are secure and correctly oriented.

  4. Configure the controller

    Power on the controller and use the configuration software to set the desired parameters. Follow the on-screen instructions to complete the setup.

  5. Calibrate the system

    Perform a calibration check using a multimeter to ensure the output signals are within the specified range. Adjust settings as necessary.

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.