A single DPDT ready assembled relay module mounted  		on a small PCB. All connections are made via screw terminals and it has  		LED indication to show when the relay is activated.
 		The relay operates from a DC voltage source. With  		diode protection for incorrect polarity connection and 		a clamping diode installed across a  		coil, this unit has many uses. If you are switching inductive loads,  		provision has been provided to fit a varistor across both sets of the  		normally open contacts. The relay boards can be secured via four M3  		fixings or a suitable DIN Rail enclosure is available
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These relay modules are ideal to interface with  		burglar alarms, fire detection systems, entry exit access systems and  		model makers.
These  		relay modules are available with three operating voltages 6, 12 and 24  		volts.