Authorized NSI Industries Distributor
NSI Industries NPDB-22-500-1 - 100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 2 x 500 MCM-4 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
NSI Industries

NPDB-22-500-1

UPC: 662381367679

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Overview

The NSI Industries NPDB-22-500-1 is a high-capacity power distribution block engineered for industrial electrical panels and machinery requiring reliable, high-current power distribution. This single-pole block features two line terminals and two load terminals, each rated for conductors from 500 MCM down to 4 AWG, supporting both aluminum and copper wiring. The unit delivers a 100kA short circuit current rating (SCCR) with proper fusing, ensuring robust performance under fault conditions. Constructed with a Valox Nylon 6/6 base and Lexan 500R polycarbonate finger-safe panels and covers, the NPDB-22-500-1 provides excellent mechanical strength, thermal resistance, and clear visibility for safe operation. The high-conductivity connectors are precision-machined from 6061-T6 electro-tin plated aluminum alloy, minimizing resistance and maximizing electrical efficiency even under heavy loads. With a maximum ampacity of 760A per pole and a 600V voltage rating, this block is ideal for demanding applications in industrial control systems, motor control centers, and power distribution panels. Designed for versatility, the NPDB-22-500-1 can be used as a standalone unit or combined with other blocks in the NPDB series to create multi-pole configurations. The integrated 35mm DIN rail mounting system features a built-in locking mechanism for secure, tool-free installation and removal. The block meets IP20 finger-safe protection standards per IEC60529, reducing the risk of accidental contact during maintenance. With a compact footprint measuring 5.80" x 2.75" x 3.75" and an operating temperature range of 90°C, this distribution block is optimized for space-constrained environments while maintaining high performance. SKU: NPDB-22-500-1.
  • 100kA Short Circuit Current Rating (SCCR) with proper fusing
  • Accepts 2x500 MCM to 4 AWG line and load conductors (AL/CU compatible)
  • Finger-safe IP20 polycarbonate panels and covers for enhanced safety
  • 6061-T6 electro-tin plated aluminum alloy connectors for low resistance
  • 35mm DIN rail mountable with integrated locking mechanism

Specifications

Amperage Rating
760A
Application
NSI
Color
Black Base-Clear Panels and Covers
Color
Black
Material
6061-T6 Aluminum Body - Valox Nylon 6/6 Base - Lexan 500R Polycarbonate Panels and Covers
Mounting
Slotted Holes in Base, 35mm DIN Rail w/Locking Feature
Number Of Terminals
4
Size
L=5.800 - W=2.750 - H=3.750 IN
Special Features
100kA Short Circuit Current Rated (SCCR), Din Rail Mount with Locking Mechanism to lock/release block on Din Rail, Multi Pole Ganging, Finger Safe Lexan 500R Polycarbonate Panels & Covers.
Standard
UL1953 and UL1059 Listed, cULus
Type
Single Primary (Line), Single Secondary (Load)
Voltage Rating
600 V
Warranty
1 Year
Wire Size
(2) 500 MCM-4 AWG(LINE) - (2) 500 MCM-4 AWG(LOAD)
Package Dimensions (L x W x H)
5.8 IN x 2.75 IN x 3.75 IN
Package Dimensions (L x W x H)
14.732 cm x 6.985 cm x 9.525 cm
Package Weight (Imperial)
1.128 L
Package Weight (Metric)
0.512 kg
Power Distribution Block (2) 500 MCM-4 AWG Primary (2) 500 MCM-4 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.

AL-R2-R2

Power Distribution Block (2) 500 MCM-4 AWG Primary (2) 500 MCM-4 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.
Industrial Strain-Relief Fitting, Hub Size M20, Cable Range 10.79 to 15.75mm, CSA Listed, Outer Diameter 38.10mm, Aluminum

ISRM20-15

Industrial Strain-Relief Fitting, Hub Size M20, Cable Range 10.79 to 15.75mm, CSA Listed, Outer Diameter 38.10mm, Aluminum
Boot, Thermoplastic, Black, Shell Size 17, AMP CPC

207241-1

Boot, Thermoplastic, Black, Shell Size 17, AMP CPC
100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 12 x 4-14 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-212-500-1

100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 12 x 4-14 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
100kA Short Circuit Current Rated Power Distribution Block. 1 x 500 MCM-4 AWG Line, 1 x 500 MCM-4 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-11-500-1

100kA Short Circuit Current Rated Power Distribution Block. 1 x 500 MCM-4 AWG Line, 1 x 500 MCM-4 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
100kA Short Circuit Current Rated Power Distribution Block for splicing or tapping of 1-2 Primary Conductors to 1-12 Secondary Side Conductors.1 x 350 MCM-6 AWG Line, 1 x 350 MCM-6 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-11-350-1

100kA Short Circuit Current Rated Power Distribution Block for splicing or tapping of 1-2 Primary Conductors to 1-12 Secondary Side Conductors.1 x 350 MCM-6 AWG Line, 1 x 350 MCM-6 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 4 x 4/0-6 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-24-500-1

100kA Short Circuit Current Rated Power Distribution Block. 2 x 500 MCM-4 AWG Line, 4 x 4/0-6 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.
100kA Short Circuit Current Rated Power Distribution Block. 2 x 600 MCM-4 AWG Line, 2 x 600 MCM-4 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

NPDB-22-600-1

100kA Short Circuit Current Rated Power Distribution Block. 2 x 600 MCM-4 AWG Line, 2 x 600 MCM-4 AWG Load Power Distribution Blocks are made of Valox Nylon 6/6, Finger Safe Lexan 500R Polycarbonate Panels and Covers, high-conductivity 6061-T6 Electro-Tin Plated aluminum alloy connector. Each block can stand alone or combine with other blocks to form a multi-block set, and are also Din Rail Mountable with built in locking mechanism to lock/release.

Frequently Asked Questions

What is the maximum ampacity of NPDB-22-500-1?

The NPDB-22-500-1 has a maximum ampacity of 760 A.

Is NPDB-22-500-1 finger safe?

Yes, the NPDB-22-500-1 is designed to be finger safe.

What is the SCCR rating for NPDB-22-500-1?

The NPDB-22-500-1 has a 100kA SCCR rating.

What is the wire range for NPDB-22-500-1?

The wire range for NPDB-22-500-1 is 2 x 500 - 4.

What is the block size of NPDB-22-500-1?

The NPDB-22-500-1 is classified as a large block size.

What is the load side configuration for NPDB-22-500-1?

The load side configuration for NPDB-22-500-1 is 2 x 500 - 4.

What is the primary side configuration for NPDB-22-500-1?

The primary side configuration for NPDB-22-500-1 is 1 pole, line 2 x 500 - 4.

What safety precautions should be taken with NPDB-22-500-1?

Always ensure the power is off before installation or maintenance to prevent electrical shock.

How do I troubleshoot issues with NPDB-22-500-1?

Check all connections and ensure the device is receiving the correct voltage.

Frequently Asked Questions about NSI Industries

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What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

What are the main product lines offered by Tork?

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What technical support does Tork offer?

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