Electric switchboard to regulate the electric motor speed through a frequency inverter and a differential pressure transmitter.

Designed for the regulation and adjustment of the motor speed of the fan according to the speed which the air transmits through the air speed probe. This probe is placed inside the cabinet. Guaranteed energy saving. For 230 and 400 Vac motors. Different IP65 casings to choose depending on the application. The cabinet incorporates ventilation, magneto thermic, switch gear, air speed probe, pilots and thermal gear. Possibility to remotely control it through an external signal potential-free. Power terminals and glands for hose ducting. Regulation of pressure differential between two zones from a value adjustable by the user. This system is perfect for pressurization of stairwells and accesses where the norm obliges to maintain the levels of 50 Pa in case of fire. It also has a good application for the ventilation with filters where the flow has to be constant and it must be detected a degree of clogging of the filter and that automatically the system modifies the speed of the fan.

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