I have a circuit that is controlling a couple of alarm lights in an industrial facility. These lights are connected to a couple of sensors, and I am placing a couple of relays in the circuit in series to perform the logic I need ("AND" logic) to control the lights. These are LED-style Unimar lights which draw about 0.12 amps each, and the relays controlling the lights are ice-cube relays, with a contact rating of 5A. The breaker supplying the circuit is a 20A 120V breaker. Do the relay contacts need to be rated for 20A, or just the rating of the lights themselves?
I'm having trouble loading a picture into this, so a rough diagram with ASCII characters is here:
RELAY CONTACTS @5A
20A CB CR-1 CR-2 LED Lights 0.12A Each
----o^o--------------||-------||------------------------O----
| |--------O----
|
| CR-1
|-----[sensor]------------------------------O----
|
| CR-2
|-----[sensor]------------------------------O----
I'm having trouble loading a picture into this, so a rough diagram with ASCII characters is here:
RELAY CONTACTS @5A
20A CB CR-1 CR-2 LED Lights 0.12A Each
----o^o--------------||-------||------------------------O----
| |--------O----
|
| CR-1
|-----[sensor]------------------------------O----
|
| CR-2
|-----[sensor]------------------------------O----