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Bipolar 76mm Stepper
57BYG621 NEMA-23

At 12.5 Kg-cm of holding torque, this is the strongest Phidgets bipolar stepper motor.

Product Features

• Very High Torque
• NEMA-17 Bipolar 4-wire
• Step angle: 1.8°
• Holding Torque: 12.5 Kg-cm @ 2.2 Amps

Motor Controller and Connection

The 3307 stepper motor connects to the 1063 - PhidgetStepper Bipolar 1-Motor.

The following table shows how to connect the motor wires to the board connectors to get clockwise rotation. To wire for counter-clockwise rotation, swap the Red and Blue wires.

Note: Make sure to unplug the power cord from the 1063 before switching wires around.

Product Specifications

Characteristic	Value
Step Angle	1.8°
Step Accuracy	5%
Holding Torque	12.5 kg-cm / 10.85 lb-in
Coil Resistance	1.8 Ohms
Rated Current	2.2A
Motor Length	76mm
Mounting Plate Size	NEMA-23
Shaft Diameter	6.35mm
Weight	916g
Number of Leads	4

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