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Dust And Vermin Proof Semaphore Indicators

Dust And Vermin Proof Semaphore Indicators

Product Category :    Electronic Indicators

Supplier                :    Nelster Welcon

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Product Profile of Dust and Vermin Proof Semaphore Indicators

Nelster Welcon manufactures Dust and Vermin Proof Semaphore Indicators. Nelster Welcon is an ISO-9001: 2008 certified company. The Company also manufactures relay test blocks, relay test plugs, semaphore indicators, relay test systems & plugs, changeover switches, by pass changeover switches, air break switches, gang operated switches etc. These Semaphore Indicators are designed to perform on instrumentation.

These Semaphore Indicators indicates the `open` or `close` position of the circuit breaker based on control and relay panel`s mimic diagram. In the open position of the isolator, breaker etc, the dial needle positions itself to right angle with reference to the mimic and in closed position of the isolator, breaker etc, the dial needle positions itself to bridge the gap between the lines and provide continuity in the mimic diagram. When the supply of these Semaphore Indicators fails the needle moves to occupy the intermediate position at 45 degrees. These Semaphore Indicators have continuously rated heavy duty solenoid coil and superior operating torque and locking. These Semaphore Indicators are aesthetically designed.

The Technical Specifications of Dust and Vermin Proof Semaphore Indicators are as follows:

  • Colour: It has black coloured body and white dial
  • Bezel Size: Diameter 36mm, 48mm & 63mm.
  • Rated Voltages: 24V - 30V DC
  • Operating Voltage: 60% to 120% of rated voltage
  • Burden: Less than 30mA
  • Terminals: 3
  • Endurance Test: 0. 10 million operations 
  • Insulation Test: 2.5 kV rms, 50 Hz for 1 minute between terminals and base, 40 MW between base and terminals
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