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One-gear roof fans Automatic control unit for a group of 4 roof fans with three-phase motors control voltage 24 V AC. Fuse element qL is adjusted for the motor power. The unit is able to make evident breaks in electric circuits. The differentiated operating voltage values take into the account the power supply voltage for signal converter.
Q0 faeo circuit breaker included in the control transformer protection and to control circuits protection. Selection and value should match chart 1. Current of electromagnetic trip activation [A].
One gear roof fans Automatic control unit for one-phase roof fan motor control voltage V AC. Safeguarded by one-field fuse element. ,250 element qL is adjusted for the motor power Safeguarded by three-field fuse element.
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The switch-off safeguards the transformer and control. The customer must specified types of fans making the fqel and the type of the input signal converter.
Safeguarded by M switch-off with the range 0,4A. Fuse element qL is adjusted for the motor fae M motor switch-off. X1 insulated ramified terminals Drawing 5 One-gear roof fans Automatic control unit for a group of 4 roof fans with three-phase motors control voltage V AC. To switch on the selected work type, the operator must set the SQ1 switch confirming the work type in the same position that work type switch SQ. Equipment list 2m50 three-field fusible cut-out Q0 motor circuit breaker included in the control transformer protection and to control circuits protection T control circuits transformer QM Automatic control unit for one-gear fan is to carry out the time control programme and to control the fan fasl according the following conditions temperature, humidity and air flow speed in the ventilation duct.
Built-in fuse has additional capacity of safeguarding the equipment against short circuits up to 50kA. THE switchgear transparent door allows for controlling the motor switch activation and the position of operation mode connector.
The unit also connects the fan motor to the electric circuit, protects from the effects of short circuits, overloads, one phase operation.
Automatic Control Unit for a group of one-gear roof fans is manufactured to order. Control circuit Safeguarded by one-field fuse element.
The below diagrams present an example of controlling a group of 4 fans. On the specification basis, the manufacturer will select proper equipment for the self-acting control unit and specify the required protection settings with an electric diagram.
One gear roof fans Automatic control unit for three-phase roof fan motor control voltage 24 V AC. F1 three-field fuse safeguard QM1 motor switch-off kM1 motor installation contactor H signalling light F2 motor circuit breaker, activated for protection of the control transformer and control circuits T control circuits transformer SQ work type switch cam switch SQ1 switch confirming the work type change X spring clamp strip X1 insulated ramified terminal in the power circuit X2 insulated ramified terminal in the control circuit.
Equipment list F1 three-field fusible cut-out F01 one-field fusible cut-out of the control circuit QM In position 0 of the switch, the fan motor operation control is switched off. Safeguarded by three-field fuse element. Uniwersal Sp z o.