Security System Relay Modules

Technical Information
Universal Relay DA220
Universal Relay. A multipurpose transistor driven relay unit with DPCO (Double Pole Change Over) contacts. The Relay can be switched by either applying a standard 12 volt feed to the Relay coil or applying a low current (<1mA) positive “trigger” input. 12V DC operation. ABS Cased.

Typical uses include changing the polarity of signals, switching higher currents and voltages (30V DC MAX). It can also be used as an interface between different systems e.g. Intruder Alarm to Access Control or Fire Alarm to Access Control.

Technical Information
Universal Quad Relay DA255
Quad Relay. A quad version of the DA220 but with four completely independent SPCO Relays on one PCB. 12V DC operation. Metal Cased.

Typical uses are as for the DA220. This unit is also useful for isolating communicator trigger inputs (see data sheet for details).





Technical Information
Uncased Universal Relay DA255U
An uncased version of the DA255. Supplied with self-adhesive mounting pillars.








Technical Information
8 Way Relay Card DA256
8-way Relay Card. An 8-way version of the DA220. This unit has 8 independent DPCO Relays on one PCB. 12V DC operation.
Metal Cased. The unit also has an inhibit line that de-energizes all 8 relays when pulled high. Typical applications are as for the DA220. This unit can also be useful when the control of a number of components (e.g. door locks) needs to be over-ridden by another system (e.g. a fire panel).



Technical Information
Uncased 8 Way Relay Card DA256U
An uncased version of the DA256. Supplied with self-adhesive mounting pillars.



Technical Information


Technical Information

RELAY MODULES Input voltage 10.5 - 14V DC

All metal cases are finished in a white gloss powder coating.
All plastic cases are white ABS.

Model No DA220 DA255 DA255U DA256 DA256U
Supply Voltage 12V DC 12V DC 12V DC 12V DC 12V DC
Current Consumption <20mA <20mA
(each relay)		 <20mA
(each relay)		 <20mA
(each relay)		 <20mA
(each relay)
Relay Type DPCO SPCO SPCO DPCO DPCO
Relay Contact Rating 30V DC 1A 24V DC 1A 24V DC 1A 30V DC 1A 30V DC 1A
Contact Sets 2 4 4 16 16
Inhibit NO NO NO YES YES
Tamper Switch YES YES YES YES YES
Weight (Kg) 0.050 0.400 0.130 2.000 0.130
Dimensions
W x H x D 		65 x 65 x 20 90 x 150 x 25 (PCB SIZE)
80 x 105 x 15		 210 x 260 x 50 (PCB SIZE)
90 x 155 x 15

These products are part of the wide range of items we manufacture for the security industry.
We are constantly widening our range by adding new items as technology advances. Data sheets are available on request.


We also design & manufacture
to customers special requirements.
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