RTRD 4 Speed Controller 3 Phase 4 Amp

The Systemair RTRD 4 is a five-step transformer speed controller rated at 4 Amp for three phase Systemair fans, fitted with integral motor protection. It controls fan speed in five fixed steps using a manual rotary switch for reliable regulation of AC voltage-controllable three phase fans.The controller offers five fixed speed steps, integral motor protection that cuts the supply if the fan thermal contact activates, RT room thermostat and FS frost protection inputs, and 230V auxiliary terminals, all housed in a self-extinguishing casing. 4 Amp 5-step transformer controller Three phase Suitable for Three phase AC voltage-controllable Systemair fans up to 4 Amp Fans with thermal contacts requiring integral motor protection Specifications Brand Systemair Model RTRD 4 Type Transformer controller (5-step) Rated Current 4 Amp Phase Three phase Voltage 400V 50/60Hz Motor Protection Integral Warranty 1 Year Manufacturer Manuals & GuidesSystemair RTRD 4 Data Sheet