With this method of emergency lighting selected branch circuits can be automatically switched from normal power to emergency power upon loss of normal power by a transfer switch that is electrically operated and mechanically held in accordance with 700 5.
Emergency lighting relay switch.
The lighting on the emergency circuit is switched on and off based on the normal circuit switching input to the unit.
The shunt relay is used on designated emergency lights to shunt or bypass around the lighting controls when a normal power outage occurs.
When normal power fails an upstream ul1008 transfer switch automatically transfers the feeder of the breaker panel to an emergency power source.
Normal emergency lights are fed via a normal emergency breaker panel and a wall switch or wallbox dimmer.
This unit is intended for applications where both a normal and emergency branch circuit are to be connected to the emergency lighting.
The lighting load can be switched on off using an individual wall switch.
The nlight npp16 er series relay pack is used to switch luminaires powered via an emergency circuit.
In automatic load control applications when normal power is present the esr relay coil is activated and the emergency panel is fed from normal power.
Over 50 individual monitoring circuits were required along with bms system tie in.
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Ideal for use along side a standard npp16 relay pack that controls a zone s normal powered lighting the npp16 er is designed to switch up to 16 amps of lighting load.
These devices sense normal power and automatically connect the emergency power source to its lighting loads during a power outage.
Our enclosed 20 amp electrically held ul 924 automatic load control relay is specifically designed for projects requiring control of an emergency lighting along with controlled general lighting in a space.
Emergency lighting transfer switches enable general illumination lighting fixtures to act as emergency lighting fixtures when an emergency power source is available.
When normal power drops out the esr coil is deactivated and n c contact falls closed.
A mix of exit style 24 7 and normally off emergency lights were used.