Noark Group Change-Over Switch 40A 1Pole - 850125 (Ex9BT3G)

Quick Feature Highlights

• 40A change-over switch – reliable manual transfer between power sources
• 1 pole configuration – ideal for single-phase switching applications
• Ex9BT3G series design – engineered for durability and consistent performance
• DIN rail mountable – easy integration into standard switchboards
• Compact form factor – space-efficient installation
• Noark quality assurance – backed by global circuit protection expertise

Overview

The Noark Ex9BT3G Change-Over Switch 40A 1 Pole (850125) is designed for safe and reliable manual switching between two power sources in residential and light commercial electrical systems. It is ideal for applications such as backup supply switching, generator change-over, and simple load transfer requirements.

With a 1 pole configuration, this switch is suited to single-phase systems where only the active conductor is switched. Its compact DIN rail design ensures quick installation within switchboards while maintaining dependable performance in everyday electrical environments.

Key Features

Switching Capability

• 40A rated current for standard single-phase applications
• Manual change-over between two power sources
• 1 pole switching for single-phase systems

Design & Construction

• Part of the Noark Ex9BT3G series
• Durable construction for long service life
• Compact footprint for efficient panel layout

Installation

• DIN rail mountable for quick and secure installation
• Suitable for integration into standard switchboards
• Clear switching positions for safe operation

Applications

• Single-phase generator and mains change-over
• Backup power supply switching
• Residential and light commercial power systems

Operational Safety

• Ensures safe isolation between power sources
• Prevents simultaneous connection of dual supplies
• Designed for reliable manual operation

Approvals & Compliance

• Manufactured to IEC standards for switchgear
• Suitable for use in compliant electrical installations

Warranty & Support

• Backed by Noark’s global product support
• Supported through standard supplier warranty channels