What
is a relay?
Relays are like a light switch on
your wall – the light in your room is powered, but waiting for the
switch to turn it on. When you flip the switch, the light turns on.
When would you
use one? For security, automation, or access
control application requiring devices such as strobes, siren drivers,
lights, long range radios, garage doors, audibles, timers, etc. These
devices already have power to them and can be turned on by the relay
when the control, or other electronic devices, trigger the relay. They
are usually triggered to coincide with another event, or it reaches the
programmed time set in the control.
What makes Elk
relays different? Elk relays have the highest
contact rating in the industry.
Why is that good? The higher the contact
rating, the greater the range of devices you can control. Most relays
available in the security market are great at controlling low voltage
devices, but our higher contact rating means you can switch standard
lighting and other high voltage devices, as well as the traditional low
voltage devices. Elk 912, 912B, & 924 relays have a contact rating of 7
Amps @ 30 VDC and 10 Amps @ 120VAC.
Which one will
do the job?
If size is a consideration, the Elk-912 is the smallest on the market
and operates @ 12 VDC. If you need a little more versatility, the
Elk-912B operates on 12 or 24 VDC. If you want to trigger something off
of a status light (LED) from a keypad or motion, or anytime you have
limited current, try the Elk-924 Sensitive Relay. It only requires 1 mA
trigger and operates on 12 or 24 VDC.
|