Motor Type: BLDC external rotor motor Impeller Diameter: 150mm Impeller Material: PA66+GF Speed Control: 0-10VDC/PWM Type of Protection: IP44/ IP54 Insulation Class: B Operation Mode: S1 Bearing: Maintenance-free ball bearing Ambient Temperature: -25℃~+60℃ Motor Protection: Locked-Rotor Protection, Reverse Polarity Protection, Over Voltage Protection, Soft Start Certificate: CE, LVD, ROHS