Timeguard IS4N-100AC Weathersafe Yellow 100A IP65 4-Pole Rotary Isolator Switch
The Timeguard IS4N-100AC is a weatherproof IP66 4-Pole 100 A AC Rotary Isolator Switch engineered for safe, reliable disconnection and isolation in heavy-duty mains electrical systems.


within 3-4 working days
Timeguard IS4N-100AC Description
The Timeguard IS4N-100AC AC Rotary Isolator Switch provides robust manual isolation for 100 A AC circuits, making it ideal for industrial, commercial and high-load installations where dependable circuit isolation is essential for maintenance, safety or emergency shut-off. Manufactured under the Timeguard brand and supported by a 3-year guarantee, this isolator is built around a tough thermoplastic enclosure with an IP66 weatherproof rating — offering full protection against dust ingress and powerful water jets for internal and external use.
Featuring 4-pole isolation, the IS4N-100AC ensures that all circuit conductors—including neutral in certain applications—are disconnected together, enhancing safety and compliance across three-phase systems. The rotary switch is lockable, helping to prevent unauthorised operation, and the interlocked front cover can only be removed when the switch is fully in the OFF position, giving installers and end users peace of mind in everyday and demanding environments.
With multiple M25 threaded cable entry points and rising clamp terminals that accommodate substantial conductor sizes, this isolator simplifies wiring and conduit access, while a removable switch assembly allows quick and easy first-fix installation and future servicing. Whether used on distribution boards, plant room feeds or outdoor panel installations, the IS4N-100AC delivers rugged performance and trusted safety.
Timeguard IS4N-100AC Features
- IP66 weatherproof rating — full protection from dust and high-pressure water jets, suited to internal and external applications.
- 4-Pole rotary isolator switch — complete isolation of multi-phase AC circuits.
- 100 A current rating for high-load AC mains installations.
- Lockable rotary switch to prevent tampering or unauthorised operation.
- Interlocked front cover removable only in the OFF position for increased safety.
- Tough thermoplastic enclosure — durable and corrosion-resistant for demanding environments.
- Multiple M25 threaded cable entry knockouts for flexible conduit access and clean installation.
- Rising clamp terminals with generous cable capacity for secure connections.
- On-load switch disconnectors — safe circuit breaking under load conditions.
- Removable switch assembly — enables easy first-fix and serviceability.
- Suitable for industrial, commercial and high-load residential applications requiring robust AC isolation.
- 3-year manufacturer guarantee for long-term reliability and support.



