Timeguard IS4N-25DC Weathersafe White 25A DC IP65 4-Pole Rotary Isolator Switch

Timeguard IS4N-25DC Description

The Timeguard IS4N-25DC DC Isolator Switch delivers robust and reliable isolation for 25 A DC circuits, making it a professional-grade choice for renewable energy applications such as solar photovoltaic (PV) arrays, battery storage systems, EV power units and other DC-powered installations. Built within a weatherproof IP65 enclosure, this isolator provides dust and water protection for exposed indoor or outdoor use, ensuring dependable performance in demanding environments.

Built to Timeguard’s quality standards, the switch features on-load switch disconnectors that enable safe circuit breaking under load, a lockable rotary handle to deter unauthorised operation, and an interlocked front cover that can only be removed when the switch is in the OFF position — adding a layer of safety during installation and maintenance. The enclosure includes multiple M20 cable entry knockouts for flexible conduit routing, while rising clamp terminals support cables up to 16 mm². The robust design complies with BS EN IEC 60947-3 and meets DC-PV1/DC-PV2 utilisation categories, ensuring professional compatibility in modern DC systems.

With its combination of safety features, weather resistance and ease of wiring, the IS4N-25DC is a trusted isolator for both trade installers and commercial projects demanding secure, high-quality DC circuit isolation.

Timeguard IS4N-25DC Features

• IP65 weatherproof rated enclosure — solid protection against dust and water jets for exposed installation conditions.
• 4-pole DC rotary isolator switch for full disconnection of multiple DC conductors.
• 25 A DC current rating — suited to medium-power DC systems such as solar PV and battery circuits.
• On-load switch disconnectors for safe operation under load conditions.
• Lockable rotary switch to prevent unauthorised switching.
• Interlocked front cover removable only in OFF position for enhanced safety.
• Tough thermoplastic construction — durable and impact-resistant for long-term use.
• Multiple M20 cable entry knockouts for flexible conduit and cable routing.
• Rising clamp terminals supporting up to 16 mm² cable size.
• Guaranteed arc suppression time <5 ms for safer switching performance.
• Complies with BS EN IEC 60947-3 and DC-PV1/DC-PV2 utilisation categories for renewable/DC installations.
• Large enclosure — easier wiring and installation access.
• Switch can be removed from housing assembly for quick installation/service access.
• 3-year manufacturer guarantee for peace of mind.