Timeguard IS4N-16DC Weathersafe White 16A DC IP67 4-Pole Rotary Isolator Switch

Timeguard IS4N-16DC Description

The Timeguard IS4N-16DC DC Isolator Switch delivers robust, professional-grade isolation for 16 A DC circuits, making it ideal for solar photovoltaic (PV) systems, battery storage solutions and other DC-powered installations that require dependable disconnection for maintenance or safety. As part of Timeguard’s DC isolator range, this switch is built into a weatherproof IP65 enclosure to protect against dust and water ingress, enabling installation in exposed or challenging environments while maintaining performance and durability.

Featuring on-load switch disconnectors for safe circuit break under load, an interlocked front cover that can only be removed when the switch is in the OFF position, and a lockable rotary switch to help prevent unauthorised operation, the IS4N-16DC combines safety and installer convenience. Multiple M20 cable entry knockouts allow flexible cable routing, while rising clamp terminals with support up to 16 mm² accommodate robust wiring. Built to BS EN IEC 60947-3 standards and compliant with DC-PV1 and DC-PV2 utilisation categories, this isolator meets professional performance expectations for modern DC systems.

Timeguard IS4N-16DC Features

• IP65 weatherproof rated enclosure — protects against dust and water ingress for exposed locations.
• 4-pole DC rotary isolator switch for complete isolation of multi-conductor DC circuits.
• Rated 16 A DC for switching and isolation in solar PV, battery and similar applications.
• On-load switch disconnectors — allow safe disconnection while under load.
• Interlocked front cover removable only when OFF for enhanced safety.
• Lockable rotary switch to help prevent tampering during maintenance.
• Tough thermoplastic construction for long-lasting durability.
• Multiple M20 cable entry knockouts for flexible wiring and conduit entry.
• Rising clamp terminals supporting up to 16 mm² cable capacity.
• Guaranteed arc suppression time <5 ms for safer switching.
• Complies with BS EN IEC 60947-3 and meets DC-PV1/DC-PV2 utilisation categories.
• Switch removable from housing for fast installation and service access.
• 3-year manufacturer guarantee for peace of mind.