Japanese Products Corp.
120 Fiske St., Fairfield, CT 06825-5524 US
Phone:203.334.7537 • Fax:203.334.7792
E-Mail: info@e-jpc.com • Web site: www.e-jpc.com
All Categories > Stepping Motors > 3 Phase Stepping Motors > Item # KR42HM4-552  


Item # KR42HM4-552, KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17

  • Drive Circuit is simplified because the motor is driven with star winding connection
  • High torque is obtained at low speed with a mirco-step driver
  • Ultra-low vibration and low noise achieved with our micro-step driver
  • With these drivers, motor step angle is set by selecting from 1/1, 1/2, 1/4, or 1/8



 Specifications 

Type
KR Series, 3 phase Permanent Magnet (3.75 Degree/Step)

Product Type
Stepper Motor

Series
3 Phase KT

Motor Frame Size
NEMA 17

No. of Phases
3

Step Angle
3.75 deg./step

Voltage
4.40 V

Current per 2 Phase
1.3 A

Winding Resistance/2 Phase
3.4 Ω

Inductance/2 Phase
4.0 mH

Holding Torque
8.3 oz·in
58.9 mN·m

Detent Torque
0.8 oz·in
5.9 mN·m

Standard Size
42 x 34 mm
1.65 x 1.34 in.

Rotor Inertia
31 g·cm²
0.17 oz·in²

Weight
210 g
0.46 lb

Insulation Class
Jis Class E (120ºC/248ºF) (UL Value : Class B 130ºC/266ºF)

Insulation Resistance (Motor Section)
500 VDC, 100 MO min.

Dielectric Strength
500 VAC, 50 HZ, 1 min.

Operating Temperature Range
0 to 50 ºC

Allowable Temperature Rise
70 ºK



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