... design, smaller body,lighter weight, high energy density2.Specail design for electronics-magnet vibration, low noise, high rotation resolution, enough constant ... ,ResolverTemperature protectionPTC positive coefficient temperature sensorForce cooling fanEncoder connectionTerminal boxCircle plug and socketMountingProtection ClassCoolingPaintingIM B5 ,IM B3 ,IM B35IP54 Optional :IP55Force ...