nVent STB205012 - Terminal Box, STB, 200x500x120mm, Light Gray, Mild Steel
nVent

STB205012

UPC: 783510529536


Documents & Media
Installation Instructions

Contact for Pricing

Overview

The nVent STB205012 terminal box is a robust, IP66-rated enclosure designed to safeguard electrical connections in demanding indoor environments. Constructed from durable mild steel and finished in a light gray powder coat, this terminal box provides superior protection against dust ingress (IP6X) and water jets (IPX6), ensuring reliable performance even in harsh conditions. Part of nVent’s trusted STB series, this enclosure is engineered to prevent component failure and minimize unplanned downtime, making it an ideal choice for professionals who demand reliability in industrial, commercial, and utility applications. Engineered for versatility, the STB205012 measures 200mm in width, 500mm in height, and 120mm in depth, offering ample space for terminal blocks, wiring, and other components. Its IP66 rating ensures compliance with stringent environmental standards, protecting sensitive electronics from moisture, dust, and corrosive elements. The mild steel construction provides excellent mechanical strength while the light gray finish offers a professional appearance suitable for both indoor and semi-outdoor installations. Typical applications for the nVent STB205012 include control panels, junction boxes, and distribution enclosures in industries such as manufacturing, oil & gas, renewable energy, and infrastructure. Professionals in these sectors rely on nVent’s STB series for its proven durability, ease of installation, and compatibility with a wide range of accessories, including gland plates, mounting brackets, and cable entry systems. The STB range is designed to simplify wiring management while ensuring long-term protection of critical electrical connections. Installation is straightforward thanks to the box’s pre-drilled mounting holes and removable lid, which allows for easy access during maintenance or upgrades. nVent’s reputation for engineering excellence and innovation in electrical protection solutions makes the STB205012 a trusted choice for engineers, electricians, and facility managers who prioritize safety, reliability, and compliance with industry standards. Whether used in a factory automation system, a renewable energy installation, or a commercial building, this terminal box delivers the performance and protection needed to keep operations running smoothly. Choose the nVent STB205012 for a terminal box that combines durability, protection, and ease of use—backed by a manufacturer with decades of experience in electrical enclosure solutions.
  • 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
Body Thickness
16 ga
Body Thickness
18 ga
Body Thickness
1.2 mm
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
732 in3
Depth
4.72
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
7.87
Height
200
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
7.87 x 19.69 x 4.72 inch
Size
200x500x120mm
Type
Mild Steel Industrial Terminal and Junction Boxes
Type
Mild Steel Terminal and Junction Boxes
Weight
9.44 lb
Weight
32 lbs./100ft
Width
19.69
Width
500
Width
23 IN
Package Dimensions (L x W x H)
20.06 IN x 8.25 IN x 5.35 IN
Package Dimensions (L x W x H)
50.9524 cm x 20.955 cm x 13.589 cm
Package Weight (Imperial)
9.440 L
Package Weight (Metric)
4.282 kg
Terminal Box, STB, 200x400x80mm, Light Gray, Mild Steel

STB204008

Terminal Box, STB, 200x400x80mm, Light Gray, Mild Steel
Terminal Box, STB, 200x600x120mm, Light Gray, Mild Steel

STB206012

Terminal Box, STB, 200x600x120mm, Light Gray, Mild Steel
Terminal Box, STB, 200x400x120mm, Light Gray, Mild Steel

STB204012

Terminal Box, STB, 200x400x120mm, Light Gray, Mild Steel
Terminal Box, STB, 200x800x120mm, Light Gray, Mild Steel

STB208012

Terminal Box, STB, 200x800x120mm, Light Gray, Mild Steel
Terminal Box, STB, 300x300x120mm, Light Gray, Mild Steel

STB303012

Terminal Box, STB, 300x300x120mm, Light Gray, Mild Steel
Terminal Box, STB, 150x300x120mm, Light Gray, Mild Steel

STB153012

Terminal Box, STB, 150x300x120mm, Light Gray, Mild Steel
Terminal Box, STB, 400x400x120mm, Light Gray, Mild Steel

STB404012

Terminal Box, STB, 400x400x120mm, Light Gray, Mild Steel
Terminal Box, STB, 300x600x120mm, Light Gray, Mild Steel

STB306012

Terminal Box, STB, 300x600x120mm, Light Gray, Mild Steel
Terminal Box, STB, 400x600x120mm, Light Gray, Mild Steel

STB406012

Terminal Box, STB, 400x600x120mm, Light Gray, Mild Steel
Terminal Box, STB, 200x300x80mm, Light Gray, Mild Steel

STB203008

Terminal Box, STB, 200x300x80mm, Light Gray, Mild Steel
Terminal Box, STB, 300x400x120mm, Light Gray, Mild Steel

STB304012

Terminal Box, STB, 300x400x120mm, Light Gray, Mild Steel
Terminal Box, STB, 200x300x120mm, Light Gray, Mild Steel

STB203012

Terminal Box, STB, 200x300x120mm, Light Gray, Mild Steel

How to Install the STB205012 Controller

This guide provides step-by-step instructions for installing and configuring the STB205012 Controller, ensuring proper wiring and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the controller

    Secure the STB205012 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 wires to their respective terminals on the STB205012 Controller. Use a multimeter to check for continuity and ensure proper connections.

  4. Configure the controller settings

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

  5. Calibrate the controller

    Perform any necessary calibration procedures as outlined in the user manual to ensure accurate operation of the STB205012 Controller.

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.