MotorsHigh-performance, low-consumption, brushless DC motor.KABB Models:Single-phase 230V±10% 50/60Hz, IP55, Class F, with thermal protector, adjustable via potentiometer built into the remote terminal box or analogue input to control the fan with a 0-10V signal.Models suitable for a range of working temperatures, from -20ºC to 50ºC+.KABT Models:Three-phase 400V±10% 50/60Hz, IP55, Class F, with thermal protector, adjustable via potentiometer built into the remote terminal or analogue input to control the fan with a 0-10V signal.Models suitable for a range of working temperatures, from -20ºC to 40ºC+.