DC Switch Disconnect 1100V 50A

Overview

The Noark Ex9IR50 PV DC Isolator range is designed to provide a safe, visible means of isolating DC circuits in solar PV and other DC power systems up to 1100 V DC. Its compact rotary design makes it ideal for use in combiner boxes, near inverters, or wherever a dependable local isolator is required.

Key features

• Purpose-built PV DC isolator for string and array isolation up to 1100 V DC.
• Rotary handle with clear ON/OFF indication for safe operation and maintenance.
• Robust construction for long electrical and mechanical life in demanding environments.
• DIN-rail mountable for fast installation in enclosures and distribution boards.
• Available in multiple pole/layer configurations to suit different string layouts and voltages.
• Low contact resistance and high breaking capacity for reliable disconnection under load.

Typical applications

• String and array isolation in rooftop and ground-mount PV systems.
• Inverter DC input isolation for residential and commercial installations.
• DC combiner boxes and distribution panels.
• Battery and DC power systems requiring a dedicated DC disconnector.

Installer notes

• Select the appropriate Ex9IR50 variant to match your system’s voltage, current and number of strings.
• Mount as close as practical to the equipment being isolated (e.g. inverter or combiner box).
• Always follow SANS/IEC wiring standards and local regulations when installing DC isolators.