nVent ASB403R - Splitter Box Type 1 3-wire 400 amps, 22.00x22.00x6.00, Gray, Steel
nVent

ASB403R

UPC: 783510138684


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Installation Instructions

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Overview

The nVent ASB403R Splitter Box (SKU ASB403R) is a Type 1 rated enclosure designed for efficient 3-wire power distribution in industrial and commercial settings. Constructed from durable steel with a neutral gray finish, this unit safely divides a single feeder circuit into multiple branch circuits. It features a substantial 400-amp capacity, suitable for high-power applications. The ASB403R includes pre-installed terminal blocks to simplify installation and ensure secure conductor termination. Its dimensions are 22.00x22.00x6.00 inches, providing ample space for wiring. Manufactured by nVent, a trusted leader in electrical solutions, this splitter box is ideal for electricians and contractors working on projects in manufacturing facilities, data centers, and power generation plants. The Type 1 enclosure offers protection against solid foreign objects and is intended for indoor use. Key specifications include its 400A rating, steel construction, 3-wire configuration, and pre-installed terminals. This splitter box facilitates organized and code-compliant power distribution, enhancing operational efficiency and system longevity.
  • Various numbers and sizes of combination knockouts are provided on all four sides: see Knockout Size and Spacing Table
  • Hinged covers
  • Mounting holes in back
  • Includes single point ground lug
  • Ground Splitter (ground bar) accessory available
  • 16 or 14 gauge steel

Specifications

Application
Power Distribution
Branch Lug Amps CU
285 A
Branch Lug Quantity
2
Branch Lug Wire Size
4 AWG - 600 MCM
Color
Gray
Color Code
ANSI 61
Connection Type
Terminal blocks
Current Rating
400 A
Depth
13 IN
Depth
6 in
Depth, Maximum
6
Depth, Minimum
6
Finish
Powder Coated
Height
22 in
Height
44 IN
Main Lug Amps CU
400 A
Main Lug Quantity
2
Main Lug Wire Size
4-600MCM kcmil
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
NEMA Rating
Type 1
NEMA Rating
1
Number Of Wires
3
Poles
3-wire
Protection Rating
NEMA Type 1
Size
22.00x22.00x6.00
Size
22.00x22.00x6.00 in
Thickness
14 ga
Thickness
51.40mm (2.024")
Type
Utility / Canadian Cabinets and Splitters
Type
Utility Cabinets
Type Number
Type 1
Weight
38 lb
Width
559 mm
Width
22 IN
Wire Quantity
3
Package Dimensions (L x W x H)
25 IN x 24.5 IN x 7 IN
Package Dimensions (L x W x H)
63.5 cm x 62.23 cm x 17.78 cm
Package Weight (Imperial)
38.000 L
Package Weight (Metric)
17.237 kg
Splitter Box Type 1 4-wire 400 amps, 22.00x22.00x6.00, Gray, Steel

ASB404R

Splitter Box Type 1 4-wire 400 amps, 22.00x22.00x6.00, Gray, Steel
The NEMA 4/4X/12 features a standard padlock-able feature with a single or (2) single point latches depending on the enclosure size. They are galvanealed steel coated. (Padlocks not included)

AB314

The NEMA 4/4X/12 features a standard padlock-able feature with a single or (2) single point latches depending on the enclosure size. They are galvanealed steel coated. (Padlocks not included)

How to Install the ASB403R Splitter Box

This guide provides step-by-step instructions for installing and configuring the ASB403R Splitter Box, ensuring safe and effective operation.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the splitter box

    Secure the ASB403R Splitter Box to the designated location using mounting screws. Ensure it is level and firmly attached.

  2. Connect the main wire feed

    Feed the main wire through the appropriate knockout on the left or right side of the splitter box. Use terminal connectors to secure the wire to the main terminal block.

  3. Verify electrical clearances

    Before energizing any circuits, check all internal and external electrical and mechanical clearances to ensure that the assembled equipment functions safely and properly.

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.