Voltmeter and ammeter selector switches are used to switch between phases for measurement on a three phase system. Voltmeter selector switches are available to switch between line-line voltage or line-line and line-neutral voltage while the ammeter selector switch switches between the three phase line currents. The output from the switch can then be fed to an analogue or digital measuring instrument. The switches offer long term switching reliability and high current switching contacts. The switch facia measures 48mm by 60mm and the switch terminals are fingerproof. A wide choice of interchangeable legend plates are available to suit each switch.
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