Safe operational thrust for the T200 for prolonged periods

Hey, i am planning to use BlueRobotics t200 thrusters for my college project. The website says the thruster produces 5kgf thrust at 16V. But can i constantly supply 16V to the thruster. Wont supply of 16V for a prolonged periods of time over heat the system and burn the ESC? If i am not supposed to run the thruster at 5kgf thrust for longer periods, what could be considered as the safe level at which i can run for prolonged time(say for 10 continuous minutes)

Thanks