nVent STB304012 - Terminal Box, STB, 300x400x120mm, Light Gray, Mild Steel
nVent

STB304012

UPC: 783510529581


Documents & Media
Installation Instructions

Contact for Pricing

Overview

The nVent STB Series mild steel terminal box (SKU STB304012) offers robust environmental protection for industrial electrical components. Constructed from 1.2 mm mild steel with a RAL 7035 structured powder coating, this enclosure meets stringent protection standards: IP66, Type 4, 12, and 13, and IK 08. These ratings ensure resistance to dust, high-pressure water jets, and significant physical impacts, making it ideal for demanding industrial settings. The box dimensions are 300mm (Height) x 400mm (Width) x 120mm (Depth). A one-piece injected polyurethane gasket provides a reliable seal against environmental ingress. For safety, integrated M8 earthing studs are present in both the body and cover. Installation is facilitated by four 8.5 mm holes for wall fixing and four M6 x 13 studs for mounting plates or bottom profiles. This terminal box is suitable for control panels, junction boxes, and housing automation equipment in manufacturing and processing facilities. Delivery includes the body, cover, cover screws, fixing screws, cover plugs, and earthing facilities.
  • 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
18 ga
Body Thickness
16 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
879 in3
Depth
13 IN
Depth
4.72
Depth
120
Door Thickness
14 ga
Door Thickness
18 ga
Door Thickness
1.2 mm
Finish
Powder Coated
Height
44 IN
Height
11.81
Height
300
Insulation
No
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
Size
11.81 x 15.75 x 4.72 inch
Type
Mild Steel Terminal and Junction Boxes
Type
Mild Steel Industrial Terminal and Junction Boxes
Weight
10.39 lb
Weight
32 lbs./100ft
Width
15.75
Width
400
Width
23 IN
Package Dimensions (L x W x H)
16.12 IN x 12.19 IN x 5.35 IN
Package Dimensions (L x W x H)
40.9448 cm x 30.9626 cm x 13.589 cm
Package Weight (Imperial)
10.390 L
Package Weight (Metric)
4.713 kg
Terminal Box, STB, 300x300x120mm, Light Gray, Mild Steel

STB303012

Terminal Box, STB, 300x300x120mm, Light Gray, Mild Steel

How to Install the STB304012 Controller

This guide provides step-by-step instructions for installing and configuring the STB304012 Controller, ensuring proper wiring and initial setup.

Estimated time: 1h

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the controller

    Secure the STB304012 controller to the DIN rail using the integrated clips. Ensure the controller is level and firmly attached.

  2. Connect the power supply

    Using terminal connectors, connect the power supply wires to the designated power input terminals on the controller. Verify that the connections are secure.

  3. Wire the input/output connections

    Connect the necessary input and output devices to the corresponding terminals on the STB304012. Use a multimeter to check for continuity and ensure proper connections.

  4. Configure the controller settings

    Power on the controller and access the configuration interface. Set the required parameters according to your application needs.

  5. Calibrate the controller

    Follow the calibration procedure outlined in the user manual to ensure the controller operates within the desired specifications.

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.