nVent ASTB400 - Splitter Trough Block Assembly, 600V 400A 4-600MCM:1/0-250 kcmil, Brushed, Aluminum
nVent

ASTB400

UPC: 783510498108

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Overview

The nVent ASTB400 Splitter Trough Block Assembly (SKU: ASTB400) is engineered for efficient power distribution within splitter troughs. This brushed aluminum assembly is rated for 600V and 400A, ensuring reliable power handling for industrial and commercial applications. It accommodates main conductors ranging from 4 to 600 MCM and branch conductors from 1/0 to 250 kcmil, utilizing secure screw terminal connections for robust electrical connections. Manufactured by nVent in Germany, the ASTB400 leverages aluminum's excellent conductivity and corrosion resistance to minimize voltage drop and ensure long-term performance. Its design integrates seamlessly into splitter trough enclosures, facilitating organized power management in environments such as manufacturing plants, data centers, and utility substations. The ASTB400 is a key component for splitting main power feeds into multiple branch circuits, providing a dependable solution for electrical infrastructure.
  • Each 600-volt block includes a main lug and branch lugs, together with copper/aluminum (CU/AL) connectors secured to insulators.
  • Constructed from brushed aluminum for excellent conductivity and corrosion resistance.
  • Accommodates main conductors from 4 to 600 MCM.
  • Supports branch conductors from 1/0 to 250 kcmil.
  • Utilizes secure screw terminal connections for reliable electrical contact.
  • Designed for integration into splitter troughs for organized power management
  • Manufactured by nVent, a trusted leader in electrical solutions

Specifications

Amperage Rating
125 A
Application
Power Distribution
Branch Amps
125 A
Branch Lug Quantity
4 + 2A
Branch Lug Quantity
6
Branch Lug Wire Size
(4) 6 AWG - 4/0 AWG
Branch Lug Wire Size
6-4/0 and 14-3/0A
Color
Unpainted
Finish
Brushed
Main Amps
400 A
Main Lug Quantity
1
Main Lug Quantity
1:2
Main Lug Wire Size
4-600MCM:1/0-250 kcmil
Main Lug Wire Size
(1) 4 AWG - 600 MCM or (2) 1/0 AWG - 250 MCM
Material
Aluminum
Modification Services
Yes
Number Of Terminals
6
Type
General Accessories
Type
Commercial Accessories
Weight
0.8 lb
Works With
NEMA
Package Dimensions (L x W x H)
6.5 IN x 6.3 IN x 4.7 IN
Package Dimensions (L x W x H)
16.51 cm x 16.002 cm x 11.938 cm
Package Weight (Imperial)
0.800 L
Package Weight (Metric)
0.363 kg
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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.