The Navitas N400AMS 100A Four Pole Main Switch has been developed to provide safe and dependable manual isolation within three phase distribution systems.

Rated at 100A and 415V, the four pole configuration allows the device to switch all phases and neutral together, making it suitable for use as the main isolating device within compatible three phase distribution boards and switchgear assemblies.

The N400AMS is DIN rail mounted for straightforward integration into distribution equipment and features robust square cage clamp terminals designed to provide secure conductor connection. A lockable operating handle allows the device to be secured in the isolated position where required.

Every N400AMS is individually tested before undergoing the comprehensive Navitas 37 point quality control inspection, helping ensure consistent operation and dependable long term performance.

Manufactured to BS EN 60947 3, the N400AMS forms part of the wider Navitas Three Phase circuit protection and isolation range.

The N400AMS is designed for use as a main isolating switch within three phase electrical distribution equipment where four pole switching is required.

Its 100A current rating and four pole configuration make it suitable for a range of commercial and industrial applications, including three phase distribution boards, switchgear assemblies and other compatible distribution equipment.

Typical applications include:

• Three phase distribution boards
• Commercial electrical installations
• Industrial electrical installations
• Switchgear assemblies
• New installations
• Distribution board upgrades and replacement projects

A main switch performs a simple but critical role within a three phase distribution system. When isolation is required, the installer needs confidence that the device will operate consistently and provide dependable disconnection of the supply.

The N400AMS combines robust construction with four pole switching, secure square cage clamp terminals and a lockable operating mechanism designed around practical installation and isolation requirements.

Every device is individually tested and subjected to the Navitas 37 point quality control inspection before leaving the factory.

Manufactured to BS EN 60947 3 and backed by a five year guarantee, the N400AMS provides a dependable 100A four pole isolation solution for professional three phase electrical installations.