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Overview
- Lug Assembly tap feeder to branch circuits in terminal boxes. Each 400-amp main lug has copper/aluminum (CU/AL) connectors secured to insulators
- Dual-rated for copper or aluminum conductors (4 AWG - 600 MCM)
- Constructed from 6061T-6 aluminum alloy with electro-tin plating
- Stacked wire hole design optimizes space in panels
- Suitable for 400A applications in terminal boxes, switchgear, and more
Specifications
Application | Power Distribution |
Color | Unpainted |
Finish | Tinned |
Material | Aluminum |
Modification Services | Yes |
NEMA Rating | 3R Weather-resistant, except dust |
NEMA Rating | 3r |
Protection Rating | NEMA Type 3R |
Type | General Accessories |
Type | Commercial Accessories |
Weight | 1.52 lb |
Wire Range | (6) #4-600 MCM kcmil |
Wire Size | (6) #4 - 600 MCM |
Works With | NEMA |
Package Dimensions (L x W x H) | 10 IN x 7.5 IN x 4.75 IN |
Package Dimensions (L x W x H) | 25.4 cm x 19.05 cm x 12.065 cm |
Package Weight (Imperial) | 1.520 L |
Package Weight (Metric) | 0.690 kg |
How to Install the TBL400 Terminal Box
This guide provides step-by-step instructions for installing and configuring the TBL400 Terminal Box for outdoor commercial and industrial applications.
Estimated time: 45m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors
- Mount the terminal box
Secure the TBL400 terminal box to a suitable surface using the provided mounting screws. Ensure the box is level and firmly attached.
- Connect the feeder wires
Open the terminal box cover and connect the feeder wires to the distribution lugs inside the box. Use appropriate terminal connectors and ensure all connections are tight.
- Seal the box
After all connections are made, replace the terminal box cover and ensure it is securely fastened to prevent water ingress.
- Verify connections
Use a multimeter to verify that all connections are correct and that there is continuity in the wiring. Check for any short circuits.
- Calibrate the system
Follow the manufacturer's instructions to calibrate the terminal box settings as needed for your specific application.
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.