nVent AST3223R - Splitter Trough Type 1 3-wire 225 amps, 36x8x5, Gray, Steel
nVent

AST3223R

UPC: 783510136765


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Installation Instructions

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Overview

The nVent AST3223R Splitter Trough (SKU: AST3223R) is a NEMA Type 1, 3-wire splitter designed for efficient power distribution in industrial and commercial applications. Rated at 225 amps, this 36x8.25x5-inch trough is constructed from durable 16 or 14 gauge steel with an ANSI 61 gray polyester powder paint finish for corrosion resistance. It features pre-installed terminal blocks with 1 main lug (6-300MCM) and 6 branch lugs (14-2/0), enabling clean splitting of feeder circuits into multiple branch circuits. The unit includes a single-point ground lug and hinged covers for secure access. Knockouts on each side (alternating 1/2-3/4" and 1-1-3/4") allow flexible cable entry, while mounting holes on the back enable secure installation. Compliance with CSA C22.2 No. 76, NEMA/EEMAC Type 1, and IEC 60529 IP30 standards ensures reliable performance in indoor environments. Ideal for manufacturing plants, data centers, and commercial buildings, the AST3223R reduces on-site labor with pre-assembled components and organized conductor management. Distributed by Gross Automation.
  • Various size knockouts on each side
  • 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
150 A
Branch Lug Quantity
6
Branch Lug Wire Size
14-2/0
Branch Lug Wire Size
14 - 2/0 AWG
Color
Gray
Color Code
ANSI 61
Connection Type
Terminal blocks
Current Rating
225 A
Depth
13 IN
Depth
4.5
Depth
114
Finish
Powder Coated
Finish
Powder Coated;Steel/Gray
Height
914 mm
Height
36 in
Main Lug Amps CU
225 A
Main Lug Quantity
1
Main Lug Wire Size
6-300MCM kcmil
Material
Mild Steel
Material
Steel
Material
Mild Steel;Steel
Modification Services
Yes
NEMA Rating
Type 1
NEMA Rating
1 Indoor, electrical protection
Number Of Wires
3
Poles
3-wire
Protection Rating
NEMA Type 1
Series
AST
Size
36x8x5
Size
36x8x5 inches
Size
36" Section in
Thickness
1.9 mm
Thickness
14 ga
Thickness
51.40mm (2.024")
Type
Utility Cabinets
Type
Utility / Canadian Cabinets and Splitters
Type Number
Type 1
Weight
24 lb
Width
8.25
Width
210
Width
23 IN
Wire Quantity
3
Package Dimensions (L x W x H)
37 IN x 9.25 IN x 5 IN
Package Dimensions (L x W x H)
93.98 cm x 23.495 cm x 12.7 cm
Package Weight (Imperial)
24.000 L
Package Weight (Metric)
10.886 kg
Splitter Trough Type 1 4-wire 225 amps, 48x8x5, Gray, Steel

AST4224R

Splitter Trough Type 1 4-wire 225 amps, 48x8x5, Gray, Steel

How to Install the AST3223R Splitter Trough

This guide provides step-by-step instructions for installing the AST3223R Splitter Trough, including mounting, wiring, and initial setup.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the splitter trough

    Secure the AST3223R Splitter Trough to the designated location using the provided mounting screws. Ensure it is level and firmly attached.

  2. Connect the main wire feed

    Route the main wire feed through the appropriate knockout on the bottom of the splitter trough. Ensure that the right terminal block aligns with the main wire feed; if not, reposition the block as necessary.

  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.

  4. Perform initial wiring connections

    Using terminal connectors, connect the incoming wires to the main lugs of the splitter trough. Ensure all connections are secure and properly insulated.

  5. Calibrate the system

    After all connections are made, use a multimeter to verify that the voltage levels are within the specified range. Adjust as necessary to ensure proper operation.

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.