Separate timing. 3-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. EN60730-1:2001 and EN 60730-2-7:1992. Specifications: Switching/contact rating: 3A. H x W x D: 101 x 163 x 37mm. Backplate fit: 9 Way (Included). Suitable for underfloor heating.