Home / Fire Detection / Control Units & Accessories / Mains Relay Base Mains Relay Base Login to View Price Information Relay module for use with any Hispec mains powered smoke, heat & CO detectors Used to activate auxiliary devices With Normally Open and Normally Closed relay terminals Volt-free relay terminals Knock-outs provide flexibility of cable entry Robust ABS design Supplied with wall plugs and screws BESA Box mountable Specifications Relay Terminals: Normally Open and Normally Closed Relay Switching Current: 3A max at 230v A.C. / 2A max at 24v D.C. Guarantee: 5 years Product Code: HSSA/RB Downloads