Motors used underwater face a completely different working environment compared with ordinary household products. Moisture, pressure, and long operating hours can quickly damage unstable motor structures. The Ming Xinxiang BL4245B Waterproof Brushless Motor With an IP68 waterproof rating and support for water depths up to 20 meters, this waterproof brushless motor is suitable for underwater propulsion systems, cleaning equipment, and industrial pump applications where continuous exposure to water is unavoidable.

Parameter	Specification
Model	BL4245B
Voltage Range	10V~14V
Rated Voltage	DC12V
No-load Speed	8000±10% RPM
No-load Current	1.5A Max
Rated Torque	1500gf.cm
Power	150W Max
Insulation Class	Class H
Driving Mode	External Sensorless
Motor Efficiency	78%
Waterproof Grade	IP68
Max Working Depth	20M Max
Applications	Industrial water pump, air pump, agricultural sprayer, underwater thruster, vortex boat, underwater cleaner

The sealed structure helps reduce water intrusion risks while keeping operation more stable during long-term underwater use.

 

 

Underwater equipment usually needs stronger torque because water resistance creates additional load during operation. The BL4245B bldc motor delivers 1500gf.cm torque with a maximum power output of 150W, allowing the motor to maintain stable rotational force even in higher resistance environments.

Ming Xinxiang brushless dc motor it reduces internal friction compared with traditional brushed designs, helping improve long-term operating reliability in demanding conditions.

Its no-load speed of 8000±10% RPM also supports faster dynamic response for applications like underwater thrusters and high-flow pump systems.

The BL4245B Waterproof Brushless Motor For Diving uses H-class insulation together with a sensorless external drive structure to support more stable continuous operation.