SEALED RELAY
To prevent atmosphere contaminants from fouling the contact points.

LOW VOLTAGE DISCONNECT
Prevents batteries from self destructing through deep discharge

LOCKOUT
Is an AC-activated load switch that prevents the batteries from discharge during Installation to a
non-energizd circuit. Contractors avoid going back to the job site to reconnect the batteries when
the main power is turned on. To save labour on installation

BATTERY CHARGER CIRCUIT
Two-step constant voltage
1st.step recharges at high rate. After battery full charged. Charging voltage is switched to
2nd.step (stand by voltage) and maintains battery keep it fully charged. To prevent battery
self discharge.

CHARGE CURRENT LIMIT
A current limited function to prevent charger failure due to over heating of the transformer. Even internal short circuit battery

SEALED DICHROIC TUNGSTEN-HALOGEN LAMP
Dust proof & prevent atmosphere contaminants to reflector

SEALED CONTROL SWITCH
To prevent atmosphere & dust contaminants from fouling the contact points

BATTERY WIRE LEAD TERMINALS
Safety & convenience connect battery to control circuit by connector protect reversing polarity or short circuit