Product Profile of Automatic Semaphore Indicator

DAV INDUSTRIES manufactures Control panel Accessories. The company DAV provides Automatic Semaphore Indicators type NTC. Automatic Semaphore Indicators are used in MIMIC diagram on Control and Instrumentation Panel to indicate open or close position of isolator, Earth switch, Circular Breaker, PT ON/OFF switch. The pointer in the Automatic Semaphore Indicators takes up position of the supervised equipment and it turn right angle when breaker, isolator is in open position. Automatic Semaphore Indicators takes up intermediate position i.E. 45 degree on failure of supply. The unique features of the Automatic Semaphore Indicators:

• High operating torque and positive action.

• Coils are continuously rated for 24-30V DC.

• Withstands 2.5 kV HV-Test

• Very Low Burden [10-30mA]

• Indicator is dust proof.

• Available in round bazel having 36 mm, 48 mm dia and 63 mm dia bazel.

• Designed for 24-30V DC Control supply and can be used for higher DC Voltage of 1100V DC usig 3kohms, 6W resistor & or 2200V DC using 9kohms 10W Screw in type resistor, in series.

• Fully type tested including for 1 lakh mechanical operation.