Motor Type: BLDC external rotor motor Impeller Diameter: 150mmImpeller Material: PA66+GFSpeed Control: 0-10VDC/PWMType of Protection: IP44/ IP54Insulation Class: BOperation Mode: S1Bearing: Maintenance-free ball bearingAmbient Temperature: -25℃~+60℃ Motor Protection: Locked-Rotor Protection, Reverse Polarity Protection, Over Voltage Protection, Soft Start Certificate: CE, LVD, ROHS