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 2.8A, with holding torque 1.9Nm(269.06oz.in).

Please Notice: This shaft is 8mm diameter.

Electrical Specification

*Manufacturer Part Number: 23HS30-2804S2
*Motor Type: Bipolar Stepper
*Step Angle: 1.8°
*Holding Torque: 1.9Nm(269.06oz.in)
*Rated Current/phase: 2.8A
*Phase Resistance: 1.13ohms
*Inductance: 4.8mH±20%(1KHz)
*Insulation Class: B 130°C[266°F]

Physical Specification

*Frame Size: 57 x 57mm
*Body Length: 76mm
*Shaft Diameter: Φ8mm
*Shaft Length: 22mm
*D-cut Length: 18mm
*Number of Leads: 4
*Lead Length: 500mm

Connection

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