mcc switchboards with fixed compartments

 Circuit breaker compartments/ Motor start compartments

The circuit breaker or motor start compartments, situated in the front part of the switchboard and accessible by a hinged door (with or without door lock depending on the construction type used), can house one or more circuit breakers of the air, moulded-case or modular type for power distribution and all the types of startings for motor control. The circuit breakers installed inside the compartment can be in the fixed, removable, or withdrawable version. The motor starting can be direct, reversing, star-delta, with inverter starting or softstarter. These switchboards are also optimally suited to house automation systems (e.g. PLCs). .

Instrument compartments

The instrument compartments are situated in the front part of the switchboard and are accessible by means of a hinged door. They can contain measurement instruments and equipment, protection relays, control and signalling devices. This auxiliary equipment can also be installed in the circuit breaker compartments to create an all-in-one type functional unit.

Main busbar compartment

The main busbars are normally situated in the upper part of the columns, in an insulated compartment, and can be inspected after removing the top panels of the columns. They distribute the power supplies to the secondary distribution busbars.

Distribution busbar compartment (rear or lateral)

In these types of switchboards, the distribution busbars can be installed in an insulated rear compartment of the section or in an autonomous and insulated lateral section communicating with the section where the circuit breakers are installed. This flexibility of installation permits configurations that are extremely adaptable to the characteristics of the specific switchboard room.

Power connections compartment

The cables compartments are autonomous sections lateral to the section of the power and auxiliary equipment, and are of width variable from 300 mm to 600 mm, in particular in order to account for the cross-section of the connection cables coming into the switchboard, the adequate bending radii of the cables and their correct connection to the functional unit. The cable compartments also contain the earth bars (PE) to which the protective conductors coming into the single functional units are joined.