Control Relays

Choose by what the relay has to switch, what will drive it, and whether its contacts must be volt-free, delayed or individually fused.

Volt-free contacts

The Paxton Access 325-010 connects across the 12V DC lock output of a compact system and provides switched NO/NC volt-free contacts for external equipment such as roller shutters or 24v locks, up to a maximum of 40V AC/DC at 4A. The Elmdene MPR002 has 2 volt-free changeover contacts that switch up to 1A at 24V dc. The Hoyles S312N accepts voltage, logic, closed circuit and open circuit inputs and passes them on through voltage-free DPCO contacts rated at 2amp. The Ajax 64932.183.NC1 MultiRelay Fibra has four independent relays with potential-free contacts and deactivates any relay that exceeds +80°C.

Interfaces between systems

The Dantech DA220 is a 12V DC relay with DPCO contacts rated 30V DC 1A, and the Dantech DA255 has four independent SPCO relays rated 24V DC 1A; the DA220 and DA255 can act as an interface between different systems, such as intruder alarm to access control. The Elmdene FIREFOM-12-4, FIREFOM-12-8 and FIREFOM-12-12 provide 4, 8 and 12 individually fused outputs, and every output can be set to permanently on or switched via a remote signal from a fire panel. The Hoyles MG030000 turns the serial output of an MG series MULTIGUARD annunciator into 6 DPCO voltage-free relay outputs.

Time delays

The Hoyles S312T can delay its action by between about 3 and 60 seconds, set on an on board potentiometer. The Aiphone TAR4 is a temporized relay for call extension, rated 250VAC/8A for external bells.

Door entry, panel and wireless relays

The Comelit PAC 1122/A is a 12-24V DC-AC 10A relay for general uses that can be controlled directly for call repetition, and the Urmet 788/100 is a lock output relay for 2Voice and IperCom systems. On alarm and access panels, the Aritech ATS1810 adds four SPDT relay outputs. The Texecom GHF-0001 and GHG-0001 are Ricochet wireless relays.

Related categories

See fire panel modules and interfaces, alarm panel modules and expanders and access control accessories. See also Burglar Alarm Kits.

Brands we stock in Control Relays

Aiphone, Ajax, Aritech, BPT, BTicino by Legrand, C-TEC, Comelit PAC, Dantech Electronic Engineering, Elmdene, Honeywell Commercial Security, Hoyles, Kantech, Paxton Access, RGL Electronics, STP, Texecom, Urmet and Videx.