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Screwdriver
Blade
Changing Relays
Relays are mounted in "Snap Track." This is an insulating
holder that allows relays to be "Snapped" in and out.
First loosen the mounting screws f or the barrier that both
acts a clamp and a cooling fin for the relays.
Remove the high voltage connections and unplug the low
voltage connections. Place a f lat bladed screwdriver in the
notch at the front of the relay and twist and lift to pop the
relay out.
Put the replacement relay into the same location with the
back side of it engaged in the track. Place the flat bladed
screw driver blade on the front of the relay and give the end
of the screwdriver a sharp tap to snap the relay into the
track. Now reconnect the low and high voltage
connections.
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Snaplink Latching Relay.
Introduced at the end of 2005 the Snaplink Latching
relay is a heavy duty 347 volt relay. It is designated
Normally Closed since it will snap to closed upon loss
of power.
The heavy construction ensures that any dead short
on the output is passed along to the circuit breaker
with minimal damage to the relay. The extra large ter-
minals can take 2 number 8 wires for loads at long
distances from the cabinet.
The Snaplink Latching relay is not a Zero Cross relay
yet is rated to switch 20 amps of High Output
Flourecent ballasts loads for 100,000 operations.
(Most smaller relays require a zero cross circuit to
handle High Output ballasts which have extremely
high inrush currents.)
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