Semaphore Indicators |
Semaphore Indicators
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Description
Semaphore indicators are designed to perform on Instrumentation, Control & Relay Panel’s mimic diagram. It indicates the ‘open’ or ‘close’ position of the circuit Breaker.
PT ON / OFF switch, Earth Switch, Isolator etc. The Dial Needle Positions itself to right angle with reference to the mimic, when the Isolator, breaker etc. is in ‘Open’ position. In “Closed’ position of the Isolator. Breaker etc, the needle positions itself to bridge the gap between the lines and provide continuity in the mimic diagram. When supply to the Semaphore Indicator fails. the needle moves to occupy the intermediate position at 45o.
Application
- For automatic status indication of Isolators, Earth Switches. Circuit Breakers etc. on Mimic diagram of Control Panels.
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Technical Specifications :
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Color :
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Body Black. Dial White.
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Bazel Size :
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Dia, 36mm. 48mm & 63mm.
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Rated Voltages :
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24V - 30V DC.
110V DC : Use 3KΏ. 6W external Resistor
220-230V DC : Use 9 KΏ. 12W
External Resistor. Stud type Resistors could be provided, at extra cost.
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Operating Voltages :
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60% to 120% of rated voltage
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Burden :
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Less than 30mA
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Terminals :
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3 Nos.
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Endurance Test :
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O. 10 million operations
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Insulation Test :
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2.5 kV rms, 50 Hz for 1 minute between Terminals and Base, 40 mΩ between base and terminals.
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Ordering Code:
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BAZEL SIZES :
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OUR PRODUCT CODE
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36 mm.
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NW-SI / 36
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48 mm.
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NW~SI / 48
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63 mm
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NW-SI / 63
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Please mention system voltage to provide suitable Resistor. Standard voltages available are : 48V, 110V & 220V.
