Separate timing. 4-wire installation. Override facility. Holiday mode. Boost function. EN 60730. 24 Hour or 5 / 2 Day programmable. Specifications: Switching/contact rating: 2(1)A 230V AC Each switch. H x W x D: 99 x 153 x 36mm. Backplate fit: British Gas Standard. 24 hour or 5/2 day programmable. Suitable for underfloor heating.