RTRDU 4

transformer speed controller

Price

Regular Price: €1,113 €1,347

Special Price Excl. Tax: €946 Incl. Tax: €1,145

central warehouse

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RTRDU 4 five-stage transformer with two switches for high and low speed for fans with supply voltage 400V with output TK thermal contacts. The speed controller for 400V fans is equipped with a built-in thermal protection relay, which interrupts the supply voltage of the fan in case of opening of the TK thermal contacts in the motor winding. The relay does not perform the automatic restart function. The fan speed is controlled by changing the output voltage using two switches on the front of the transformer. High or low speed is switched by an external signal source, such as an RT room thermostat or a timer. The RTRDU transformer is also equipped with 230V output terminals for connecting shutter actuators, electric heaters, etc. and is used only for switching on and off external devices.

Current [A]	4
Voltage	400V
Protection IP	IP21
Dimensions (W x H x D)	270x323x163 mm

Description

Additional Information

Weight [kg]	11.6
Availability	central warehouse
Manufacturer	Systemair
Type of good	transformer speed controller
Protection IP	IP21
Dimensions (W x H x D)	270x323x163 mm

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