TDID 21A – EA900038 – Transformer Three Phase – Flakt Woods

TDID 21A – EA900038 – Transformer Three Phase – Flakt Woods The TDID transformer speed controllers are based on the principle of voltage control with auto-transformers. They are applicable to three phase voltage-controllable motors (400 VAC, 50/60 Hz), to control the rotational speed of fans in five steps. They are fitted out with contacts for motors equipped with thermostat(Tk) overheat protection. A safety isolator/switch disconnector should be installed on the mains side of all motor drives; refer to SISO. Features • Independent 5 step transformer drive with motor overheat protection via thermostats • Supply: 400 VAC, 50/60 Hz, 3 Phase • IP54 ingress protection • In built motor overheat protection via motor thermostats (Tk) • Switch: 5 positions with off position • Indicator light • 230 VAC unregulated output • Enclosure: plastic (R-ABS, UL94-V0, RAL 7035) / sheet steel (RAL 7035) • Maximum ambient temperature: 50 °C PRODUCT PDF: TDID Data Sheet