Authorized nVent Distributor
nVent ASTB125 - Splitter Trough Block Assembly, 600V 125A 14-1/0 kcmil, Brushed, Aluminum

nVent ASTB125 Splitter Trough Block Assembly, 600V 125A 14-1/0 kcmil, Brushed, Aluminum

UPC: 783510497903

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent ASTB125 Splitter Trough Block Assembly is a 600V, 125A-rated component designed for tapping feeder branch circuits within splitter troughs in industrial and commercial electrical systems. This assembly features integrated copper/aluminum (CU/AL) connectors, ensuring reliable connections for both copper and aluminum conductors with wire sizes ranging from 14 AWG to 1/0 kcmil. The brushed aluminum housing provides excellent corrosion resistance and electrical conductivity, making it suitable for harsh environments. The ASTB125 is engineered for use in power distribution panels, switchgear, motor control centers (MCCs), and other applications requiring organized and safe circuit branching. Its durable construction includes high-quality insulators for electrical isolation and structural integrity. With a maximum current rating of 125A and compatibility with 3 or 4-wire systems, this splitter block assembly supports efficient power distribution up to 600V. The assembly is ideal for facilities such as manufacturing plants, commercial buildings, and data centers where reliable and compliant electrical infrastructure is critical.
  • Each 600-volt block includes a main lug and branch lugs, together with copper/aluminum (CU/AL) connectors secured to insulators.
  • Accommodates wire sizes from 14 AWG to 1/0 kcmil (CU/AL compatible)
  • Brushed aluminum housing for corrosion resistance and conductivity
  • Integrated CU/AL connectors ensure reliable connections for mixed conductors
  • Designed for use in splitter troughs for organized circuit tapping

Specifications

Amperage Rating
85 A
Application
Power Distribution
Branch Amps
85 A
Branch Lug Quantity
6
Branch Lug Wire Size
14 - 2 AWG
Branch Lug Wire Size
14-2
Color
Brushed
Color
Unpainted
Connection Type
CU/AL connectors
Current Rating
125A
Finish
Brushed
Main Amps
125 A
Main Lug Quantity
1
Main Lug Wire Size
14-1/0 kcmil
Material
Aluminum
Modification Services
Yes
Number Of Terminals
6
Series
nVent
Size
14-1/0 kcmil
Type
General Accessories
Type
Commercial Accessories
Voltage Rating
600V
Weight
0.22 lb
Works With
NEMA
Package Dimensions (L x W x H)
10.25 IN x 8 IN x 2 IN
Package Dimensions (L x W x H)
26.035 cm x 20.32 cm x 5.08 cm
Package Weight (Imperial)
0.220 L
Package Weight (Metric)
0.100 kg
Splitter Box Block Assembly, 125 amps, Brushed, Aluminum

ASBB125

Splitter Box Block Assembly, 125 amps, Brushed, Aluminum
Open-Style PDB UL 1953 1000V 360A Tin-plated Aluminum - 460A 1-Pole 2 - 2 openings; 4/0-#6 --- 4/0-#6 Box to Box

MPDB67521

Open-Style PDB UL 1953 1000V 360A Tin-plated Aluminum - 460A 1-Pole 2 - 2 openings; 4/0-#6 --- 4/0-#6 Box to Box
Splitter Blocks 125 A Box

CSBL125B

Splitter Blocks 125 A Box
Power Distribution Block (1) 350 MCM-6 AWG Primary (12) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.

AM-P1-H12

Power Distribution Block (1) 350 MCM-6 AWG Primary (12) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.
BLOCK MULTI 100A 4P

54214010

BLOCK MULTI 100A 4P
S3-M2 POWER INFEED BLOCK

MS325-BB1

S3-M2 POWER INFEED BLOCK
Splitter Box Block Assembly, 225 amps, Brushed, Aluminum

ASBB225

Splitter Box Block Assembly, 225 amps, Brushed, Aluminum
Splitter Trough Block Assembly, 600V 225A 6-300MCM kcmil, Brushed, Aluminum

ASTB225

Splitter Trough Block Assembly, 600V 225A 6-300MCM kcmil, Brushed, Aluminum

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.