This is the strongest bipolar Nema 17 stepper motor we have, with step angle 1.8deg and size 42x42x60mm. It has 4 wires, each phase draws current 2.1 A, with holding torque 65 Ncm (92 oz.in).

100% brand new from "Stepperonline" and RoHS and CE certified.

Electrical specification:

* Manufacturer Part Number: 17HS24-2104S
* Motor type: bipolar
* Step Angle: 1.8 degree
* Holding torque: 65 Ncm (92 oz).
* Rated current/phase: 2.1 A.
* Phase resistance: 1.6ohms
* Voltage: 3.36V
* Inductance: 3.0mH±20%(1KHz)

Physical specification:

* Frame size: 42 x 42 mm.
* Body length: 60 mm.
* Shaft diameter: 5 mm.
* Shaft length: 24 mm.
* D-cut length: 15 mm.
* Number of leads: 4.
* Lead rotation: 500 mm.
* Weight: 500g

Connection:

Black (A +), Green (A-), Red (B +), Blue (B-).

Warning:

* As a stepper motor, it should be connected to a constant current or chopper driver. If you connect the motor directly to a power supply, the motor will be destroyed.
* Please pay attention to order four wire coils when you connect to the driver, or it will damage your driver.