This bipolar Nema 17 stepper motor with step angle 1.8deg and size 42x42x38mm. It has 4 wires, each phase draws current 1.5A, with holding torque 42Ncm.

Electrical Specification

*Manufacturer Part Number: 17HE15-1504S
*Motor Type: Bipolar Stepper
*Step Angle: 1.8 deg
*Holding Torque: 42Ncm(59.49oz.in)
*Rated Current/phase: 1.50A
*Phase Resistance: 2.3ohms
*Inductance: 4.00mH ± 20%(1KHz)

Physical Specification

*Frame Size: 42 x 42mm
*Body Length: 38mm
*Shaft Diameter: Φ5mm
*Shaft Length: 23.5mm
*D-cut Length: 20mm
*Number of Leads: 4
*Lead Length: 1000mm
*Weight: 280g

Connection

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

WARNING

***On some systems, the middle 2 wires on the motor side are swapped. This is easy to fix by slightly prying back the white nubs and swapping the wires. Otherwise they work fine.***

Make sure the motor connect to a constant current or chopper drive controller before you test motor.
Connecting the motor directly to a power supply will destroy the motor.