ENSTO pole-mounted disconnector SZ160.322 3P with earthing terminal for enclosure

ENSTO SZ160.322 is a pole-mounted 3-pole disconnector with an integrated earthing terminal designed for installation on an enclosure. It enables reliable mechanical separation of three-phase circuits in outdoor environments, providing a visible isolation point and a dedicated grounding connection. The device is intended for overhead line and distribution network applications where secure circuit isolation and earthing are required on a pole-mounted enclosure.

Advantages

The disconnector offers mechanical robustness and straightforward operation for outdoor installations. Its three-pole design allows simultaneous isolation of all phases, while the built-in earthing terminal provides a clear and direct grounding path for maintenance and safety procedures. The unit is designed for mounting on enclosures attached to poles, reducing the need for additional support hardware and simplifying field installation.

Suitable for

• Overhead line switching and isolation
• Distribution network pole-mounted enclosures
• Outdoor electrical installations requiring visible isolation
• Maintenance and safety earthing procedures

Key specifications

• 3-pole mechanical disconnector suitable for three-phase circuits
• Integrated earthing/grounding terminal for safe discharge and shorting
• Designed for pole-mounted installation on enclosures in outdoor conditions
• Visible isolation point for maintenance and safety verification
• Mechanical operation with clear open/closed position indication

How to use

Install the disconnector on the enclosure mounted to the pole according to local electrical codes and the enclosure manufacturer instructions. Ensure mechanical fixing is secure and that wiring connections to phase conductors and the earthing terminal are tightened to specified torque values. Operation is performed manually to open or close all three poles simultaneously; when opened, connect the earthing terminal to a verified grounding conductor to provide a safe discharge path before starting maintenance. Verify the visible open position and test continuity of the earthing connection prior to work.

Usage recommendations

Use the disconnector in accordance with relevant national and local safety standards. Confirm compatibility with system voltage and environmental conditions before installation. Perform periodic inspections for mechanical wear, corrosion, and tightness of connections, and verify earthing continuity as part of routine maintenance.