Noark Group Change-Over Switch 40A 4 pole - 850137 (Ex9BT3G)

Quick Feature Highlights

• 40A change-over switch – reliable manual transfer between power sources
• 4 pole configuration – suitable for three-phase systems with neutral switching
• 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 4 Pole (850137) is designed to provide safe and reliable manual switching between two power sources in commercial and industrial electrical systems. It is ideal for applications such as generator change-over, backup power systems, and load transfer requirements.

Featuring a robust 4 pole configuration, this switch ensures complete isolation including neutral, making it suitable for three-phase installations. Its compact DIN rail design allows for easy installation within switchboards, while delivering dependable performance under demanding conditions.

Key Features

Switching Capability

• 40A rated current for standard load switching applications
• Manual change-over between two power sources
• 4 pole switching including neutral for full isolation

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

• Generator and mains change-over systems
• Backup power supply switching
• Commercial and industrial power distribution

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