Multi Function Timer Relay Part No S351 Hoyles Electronic Developments. Universal timer relay module with two timing ranges 1 - 60 sec's & 1 - 60 mins. Volt free DPCO relay contacts are rated at 1A/30vdc resistive. Multiple trip modes. A-stable operation for pulsing sounders etc. This versatile unit can also be used as a commutating relay ie one pulse energises the relay and a further pulse de-energises the relay. S351 and S351/24 S351 Requires 12vdc supply at 80mA S351/24 Requires 24vdc supply at 85mA Contacts Rated at 1amp Six mounting holes provided for more permanent fixing Screw terminals for easy connection Dimensions - L80mm x W74mm x D16mm