This is one of the most popular Nema 23 stepper motor, it with step angle 1.8deg and size 57x57x76mm. It has 4 wires, each phase draws 3A, with holding torque 1.9Nm (269oz.in).

Electrical Specification

*Manufacturer Part Number: 23HS30-3004S
*Motor Type: Bipolar Stepper
*Step Angle: 1.8 deg
*Holding Torque: 1.9Nm(269oz.in)
*Rated Current/phase: 3A
*Voltage: 3.36V
*Phase Resistance: 1.12ohms
*Inductance: 4.8mH ± 20%(1KHz)

Physical Specification

*Frame Size: 57 x 57mm
*Body Length: 76mm
*Shaft Diameter: Φ6.35mm
*Shaft Length: 21mm
*D-cut Length: 15mm
*Number of Leads: 4
*Lead Length: 500mm
*Weight: 1.2kg

Connection:

Black: A+, Green: A-, Red: B+, Blue: B-