Authorized nVent Distributor
nVent STB404012 - Terminal Box, STB, 400x400x120mm, Light Gray, Mild Steel

nVent STB404012 Terminal Box, STB, 400x400x120mm, Light Gray, Mild Steel

UPC: 783510529635


Documents & Media
Installation InstructionsSpecification SheetManufacturer Product Website

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent STB404012 is a 400x400x120mm mild steel terminal box designed for robust protection of electrical components in industrial settings. Constructed from 1.2 mm thick mild steel with a folded and seam-welded body, it offers significant structural integrity. The enclosure features a RAL 7035 light gray structured powder coating for corrosion resistance. It boasts an IP66 rating for dust and water ingress protection, and an IK 08 rating for impact resistance, safeguarding sensitive equipment from harsh environmental conditions and physical damage. Installation is facilitated by four 8.5 mm diameter holes for wall fixing and four internal M6 x 13 studs for mounting plates or bottom profiles. A one-piece injected polyurethane gasket ensures a reliable seal. For safety compliance, it includes M8 x 18 mm earthing studs in both the body and cover, along with necessary hardware. This terminal box meets Type 4, 12, and 13 enclosure standards, making it suitable for industrial automation, control, and power distribution systems where reliable enclosure is critical. Its durable construction and comprehensive protection minimize the risk of component failure and operational downtime.
  • 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
18 ga
Body Thickness
16 ga
Body Thickness
1.2 mm
Cable Entry
No
Color
Light Gray;RAL 7035 Light Gray
Color
Gray
Color
Grey
Color
Light Gray
Color Code
RAL 7035
Construction
Body: 18 gauge Door: 18 gauge
Cubic Capacity
1 in3
Cubic Capacity
16387.1 mm3
Depth
4.72 in
Depth
120
Depth
13 IN
Door Thickness
18 ga
Door Thickness
1.2 mm
Door Thickness
14 ga
Finish
Powder Coated
Height
44 IN
Height
400
Height
15.75 in
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
400x400x120mm
Size
15.75 x 15.75 x 4.72 inch
Type
Mild Steel Industrial Terminal and Junction Boxes
Type
Mild Steel Terminal and Junction Boxes
Weight
13.52 lb
Weight
32 lbs./100ft
Width
15.75 in
Width
23 IN
Width
400
Package Dimensions (L x W x H)
16.12 IN x 16.12 IN x 5.35 IN
Package Dimensions (L x W x H)
40.9448 cm x 40.9448 cm x 13.589 cm
Package Weight (Imperial)
13.520 L
Package Weight (Metric)
6.133 kg
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Frequently Asked Questions

What are the dimensions of the STB404012 terminal box?

The STB404012 terminal box has dimensions of 15.75 inches in height, 15.75 inches in width, and 4.72 inches in depth.

What material is the STB404012 terminal box made of?

The STB404012 terminal box is constructed from 1.2 mm mild steel with an 18ga body and door thickness.

What is the protection degree of the STB404012 terminal box?

The STB404012 terminal box has an IP 66 protection degree, and is also rated Type 4, 12, and IK 08.

What industry standards does the STB404012 terminal box meet?

The STB404012 terminal box meets UL 508A Listed, cUL Listed, NEMA/EEMAC Type 4, 12, 13, and IEC 62208 IP66 standards.

What is the color and finish of the STB404012 terminal box?

The STB404012 terminal box is light gray (RAL 7035) with a structured powder coating finish.

What is included with the STB404012 terminal box upon delivery?

The STB404012 terminal box is delivered with the body, cover, cover screws, fixing screws, cover plugs, and earthing facilities.

How is sealing ensured on the STB404012 terminal box?

Sealing is ensured by an injected one-piece polyurethane gasket on the STB404012 terminal box.

What are the earthing provisions for the STB404012 terminal box?

The STB404012 terminal box has M8x18 mm earthing studs in the body and cover, along with M8 nuts, washers, and labels.

What is the weight of the STB404012 terminal box?

The STB404012 terminal box weighs 13.52lb.

Are there holes for wall fixing on the STB404012 terminal box?

Yes, the STB404012 terminal box has four 8.5 mm diameter holes for wall fixing.

How to Install the STB404012 Controller

This guide provides step-by-step instructions for installing and configuring the STB404012 Controller, ensuring proper wiring and setup for optimal performance.

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 STB404012 controller to the DIN rail using the integrated clips. Ensure the controller is level and firmly attached to prevent any movement.

  3. Connect the wiring

    Using wire strippers, prepare the wires for connection. Connect the power supply and input/output wires to the designated terminals on the controller, ensuring proper polarity and secure connections.

  4. Verify connections

    Use a multimeter to check the voltage at the power terminals to ensure the controller is receiving the correct voltage. Confirm that all connections are secure and properly insulated.

  5. Configure the controller

    Access the controller's configuration interface and input the necessary settings for your application. Follow the manufacturer's guidelines for specific configuration parameters.

  6. Calibrate the controller

    Perform a calibration of the controller as per the instructions in the user manual. This may involve adjusting settings based on the connected devices and ensuring accurate readings.

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.