The Sanyo Denki 103H7821-1710 is a two-phase, bipolar, stepper motor with 24VDC drive. It has a 1.8° step angle and a 0.88Nm torque rating with 4A current draw. This motor is designed for high torque applications, and can be used in a variety of industries, including robotics, printing, HVAC, and more. The motor has built-in protection against over-heating and over-current conditions, making it a reliable choice for use in a variety of environments.