nVent TB3R203 - Terminal Box 1-Phase Type 3R, 23.00x12.00x4.50, Gray, Steel
nVent

TB3R203

UPC: 783510144463

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Overview

The nVent TB3R203 is a robust 3-phase Type 3R terminal box designed for outdoor commercial and industrial wire-splice applications. It effectively transitions feeder taps to branch circuits. Constructed from 16-gauge galvanized steel, this enclosure features an ANSI 61 gray polyester powder paint finish for superior corrosion resistance. Meeting NEMA/EEMAC Type 3R and IEC 60529 IP32 standards, the TB3R203 offers enhanced weatherproofing with its drip-shield top and seam-free sides, front, and back. Measuring 23" x 12" x 4.5" (584 x 305 x 114 mm), this terminal box supports up to 200 amps and accommodates wire ranges from #6 to 350 MCM. It comes pre-equipped with distribution lugs and includes a removable cover for easy access. A top hub opening with a cover facilitates conduit entry. For added safety and flexibility, provisions for padlocking or sealing, bottom knockouts, and grounding are integrated. Certified UL 1773, UL 50, 50E, and cUL per CSA C22.2 No. 94, the nVent TB3R203 ensures reliable power distribution in exposed installations.
  • Grounding provisions
  • Hub opening at top with cover
  • Provisions for padlocking or seal
  • Distribution lugs installed (see table for sizes)
  • Knockouts on bottom of enclosure
  • Removable cover
  • Drip-shield top and seam-free sides, front and back
  • Terminal Boxes are finished with paint over plated surfaces

Specifications

Amps
200 A
Application
Power Distribution
Bar Quantity
4
Color
Gray
Color Code
ANSI 61
Current
200-200 A
Current Rating
200 A
Depth
13 IN
Depth
4.5
Depth
114
Finish
Galvanized
Height
44 IN
Height
23
Height
584
IP Rating
IP32
Material
Mild Steel;Steel
Material
Mild Steel
Material
Steel
Modification Services
Yes
NEMA Rating
Type 3R
NEMA Rating
3R Weather-resistant, except dust
NEMA Rating
3r
Number of Phases
3 Ph
Phase
3Ø Ph
Poles
3
Protection Rating
NEMA Type 3R
Size
23.00x12.00x4.50
Size
23.00x12.00x4.50 in
Thickness
16 ga
Thickness
51.40mm (2.024")
Thickness
1.52 mm
Type
Utility Cabinets
Type
Utility / Canadian Cabinets and Splitters
Type Number
Type 3R
Voltage AC
600 V
Weight
24.4 lb
Width
14
Width
356
Width
23 IN
Wire Range
(6) #6-350MCM kcmil
Wire Size
(6) #6 - 350 MCM
Package Dimensions (L x W x H)
23.8 IN x 16.9 IN x 8 IN
Package Dimensions (L x W x H)
60.452 cm x 42.926 cm x 20.32 cm
Package Weight (Imperial)
24.400 L
Package Weight (Metric)
11.068 kg
Terminal Box 3-Phase Type 3R, 23.00x12.00x4.50, Gray, Steel

TB3R201

Terminal Box 3-Phase Type 3R, 23.00x12.00x4.50, Gray, Steel

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.