Terminal rail connector Simet ZSG1-4.0Nc 2-conductor 4 mm² red

Simet ZSG1-4.0Nc 2-conductor 4 mm² red is a DIN-rail terminal rail connector designed to provide reliable electrical connections for conductors up to 4 mm². Finished in red for easy phase identification, this connector is intended for use in distribution blocks, control cabinets and industrial panels where secure clamping and clear visual coding are required.

Advantages

The connector offers a compact two-conductor design that saves space on standard DIN rails while allowing secure clamping of conductors up to 4 mm². The red insulation provides simple visual identification of phase conductors, reducing wiring errors during installation and maintenance. Mechanical construction ensures stable contact and vibration resistance in industrial environments, and compatibility with common DIN-rail systems simplifies mounting and replacement.

Suitable for

• Power distribution blocks in electrical panels
• Control cabinets and automation panels
• Industrial machinery wiring where space-efficient terminal connections are needed
• Applications requiring color-coded phase identification

When it may not be suitable

This connector is intended for conductors with a cross-sectional area up to 4 mm²; it is not suitable for larger conductors or busbar applications that require higher current capacity. It is also not intended as an insulating barrier for high-voltage isolation beyond standard panel wiring practices.

Key specifications

• Number of conductors: 2
• Maximum conductor cross-section: 4 mm²
• Mounting type: DIN-rail
• Insulation color: red (phase identification)
• Application environment: distribution panels, control cabinets, industrial panels

How to use

Mount the connector onto a compatible DIN rail and prepare conductors by stripping the insulation to the recommended length. Insert each conductor into the appropriate clamping point and tighten the clamp according to the torque guidelines of your installation practice to ensure reliable contact. Verify mechanical retention and electrical continuity after installation and perform insulation checks as required by local electrical standards.

What to consider before purchase

• Confirm that conductor cross-sections do not exceed 4 mm².
• Ensure compatibility with your DIN-rail dimensions and panel layout.
• Check that red insulation meets your site’s color-coding scheme for phases.
• Verify required current ratings and environmental conditions separately to match load and safety requirements.

Usage recommendations

Use the connector in accordance with applicable electrical installation standards, apply correct stripping lengths and tightening torque, and perform routine inspections to maintain secure connections and safe operation in distribution and control systems.