Voltmeter and ammeter switches are applied to select the AC-phases to be measured. This way, one single instrument can be used for measurement of current or voltage of different phases, respectively phase-to-phase and phase-to-zero. Some types additionally have a zero-position. Switches are available for panel-mounting or DIN-rail mounting. Panel-mounting-types are 4-hole screw-fixing, or one-hole-central-fixing.

Position indicators display the actual position of circuit-breakers and isolators. They are designed for mounting in instrument-panels or in Mimic panels. The position indicators are available for AC and DC-voltages and in different formats and sizes.