Timeguard NTT08 7 Day Slimline Electronic Immersion Timeswitch

The NTT08 is a digital 7-day programmable timeswitch from Timeguard, widely used in electrical installations for controlling immersion heaters, lighting circuits, heating systems, and other fixed electrical loads. Designed for wall mounting, it provides flexible scheduling, reliable switching, and energy-efficient automation for both domestic and light commercial applications.

This unit is a slimline electronic controller capable of handling up to 16A resistive load (3.68kW), making it particularly suitable for immersion heaters. It also supports inductive loads up to 4A and is compatible with LED lighting loads (typically up to 100W depending on configuration). Its versatility makes it a popular choice for installers looking for a single solution across multiple control applications.

The NTT08 offers flexible programming options, including 7-day, 5/2, or 24-hour modes, with up to 28 on/off programmes per week. Each day can be configured with multiple switching periods, allowing precise control over when equipment operates. The shortest switching interval is 1 minute, providing fine control for energy management and timed operation.