Connection box options of EC-fans

WARNING: EC-fans: Electrical load (>50 μC) between mains wire and protective earth connection after switching of the supply when switching multiple devices in parallel. Electric shock, risk of injury. Ensure that you have sufficient protection against accidental contact. Before working on the electrical connection, short the connections to the mains supply and PE. EC-fans: Terminals and connections have voltage even in a unit that is shut off. Electric shock. Wait for five minutes after disconnecting the voltage at all poles before opening the device.

WARNING: Ensure free space in front of the electrical cabinet according to local regulations.

SW Service Switch

Each fan is wired to the safety switch located in the corner of fan. Control the alarm signal with a micro switch. The maximum voltage is 230 V.

CBP Terminal box at the unit end

Fan power supply and control signal cables are wired to the unit end. Wire the power supply for each fan separately from the Junction box.

ECCB/I/T Connection box at the unit end

Fan power supply and control signal cables are wired to the unit end. The connection box is equipped with circuit breakers and unit power switch. The unit power supply is wired with one cable to the electrical panel.

Note: ECCBT: Ensure that instrument cable to temperature probe is cabled downward to avoid water penetration to probe through cable inlet.

The delivery includes the necessary documentation for the electrical connections (in the electrical panel).

In the models with two fan rows (SD™, SRD™), Modbus is wired as a loop. 0…10 V control signal is wired separately to the left and right fan row.