Different types of meters are used in the MCC panel for indicating the status of the panel.Mainly three types of meters are used. Ammeter, Volt meter, Watt meter, Energy meter. Analog and Digital type meters are using nowadays.
Instrument used for measuring the current flow in the circuit is called ammeter. It should be connected series to the circuit .
Instrument used for measuring the voltage across in the circuit is called voltmeter. It should be connected paralled to the circuit.
Analog volt meter
Digital volt meter
This is also called as a watt-hour meter. Energy meter is used for measurinh the energy consumed in a circuit.
Analog Energy meter
Digital Energy meter.