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GRL DNJ1 High Current Terminal 250A Cable Connection Terminal Supplier

Rated Current:
250A
Rated Insulation Voltage (Ui):
1000V
Pole Options:
3P / 4P / 5P
Maximum Cable Cross Section:
150 mm²
Minimum Cable Cross Section:
16 mm²
Wire Connections per Pole:
2
Busbar Connections per Pole:
1
Compliance Standard:
IEC 60947-7-1 / GB/T 14048.7
Description

250A High Current Terminal for Control Cabinets, Busbar Systems and Low Voltage Power Distribution

Technical Specifications

Parameter DNJ1-250
Rated Current (Ie) 250A
Rated Insulation Voltage (Ui) 1000V
Pole Options 3P / 4P / 5P
Maximum Cable Cross Section 150 mm²
Minimum Cable Cross Section 16 mm²
Cable Capacity 35–150 mm² (1×) / 16–70 mm² (2×)
Flat Busbar Capacity 18 × 10 mm
Wire Connections per Pole 2
Busbar Connections per Pole 1
Operating Temperature -5°C to +40°C
Pollution Degree 3
Installation Altitude ≤ 2000m
Standard IEC60947-7-1 / GB/T 14048.7

Model Selection

Model Pole Number Order Code
DNJ1-250/3 3P DN54300
DNJ1-250/4 4P DN54200
DNJ1-250/5 5P DN54500

Product Overview

The DNJ1-250 High Current Terminal is designed for safe and efficient cable connections within industrial power distribution systems, control cabinets, and low-voltage switchgear.

Rated at 250A, it creates an intermediate connection structure between external power cables and switching equipment:

External Cable → High Current Terminal → Main Switch → Busbar System

Compared with traditional direct wiring methods, this approach improves installation flexibility, cabinet organization, and maintenance accessibility while helping reduce cable stress on switching devices.

GRL DNJ1 High Current Terminal

Key Advantages

1. Safer High Current Connections

Large cable operations inside compact electrical cabinets often create stress concentration and installation challenges.

DNJ1-250 relocates the cable connection point to an independent terminal area, helping to improve safety and connection stability.

Benefits include:

  • Touch-proof protection
  • Reduced overheating risk
  • Lower mechanical stress
  • Improved inspection safety
  • More reliable electrical connection

2. Faster Installation and Maintenance

External cables can be prepared and aligned before final system connection.

This workflow reduces installation complexity and minimizes maintenance downtime.

Suitable for modular busbar systems and modern power distribution infrastructure.

Typical Applications

  • Control Cabinet
  • MCC Panel
  • Low Voltage Switchgear
  • Industrial Automation System
  • Data Center Power Distribution
  • Energy Storage System
  • Renewable Energy Projects

Why Choose DNJ1-250?

DNJ1-250 combines structured cable management with reliable high-current transmission capability, helping engineers create cleaner and more maintainable electrical systems.

   
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