Motor model 90st? M02430 90st? M03520 90st? M04025
Rated power(kw) 0.75 0.75 1.0
Rated voltage(v) 220 220 220
Rated current(a) 3 3 4
Rated speed(rpm) 3000 2000 2500
Holding torque(n. M) 2.4 3.5 4

Peak torque(n. M) 7.1 10.5 12
Peak current(a) 9 7.5 12
Voltage constant
(v/krpm) 51 67 60
Torque coefficient(n. M/a) 0.8 1.2 1.0
Rotor inertia(kg. M2) 2.45× 10? 4 3.4× 10? 4 3.7× 10? 4
Phase resistance(? ) 3.2 4.06 2.69
Phase inductance
(mh) 7.0 9.7 6.21
Machanical time? Constant
(ms) 2.2 2.39 2.3
Weight(kg) 3.4 3.8 4.13
Encoder line number
(ppr) 2500
Insulation class class b(130c)
Safety class ip65
The operating
Of evironmental conditions temperature:? 20c ~ +50 c
Humidity: Below 90%rh no dewing
Motor winding plue winding lead
Wire u(red) v(yellow) w(blue) pe(yellow, green/black)
plug serial
Numberr 1 2 3 4
Encoder plug signal lead
Wire 5v 0v b+ z? u+ z+ u? a+ v+ w+ v? a? b? w? pe
plug serial
Number 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1
color red black green yellow black brown
Yellow brown black
Blue grey
White grey black blue black green black white black
2.Production Flow


3.Company Information
 In recent ten years,Derry has been dedicated to the manufacture of the motor products and the main products can be classified into the following series, namely DC motor, DC gear motor, AC motor, AC gear motor, Stepper motor, Stepper gear motor, Servo motor and Linear actuator series. 

Our motor products are widely applied in the fields of aerospace industry, automotive industry, financial equipment, household appliance, industrial automation and robotics, medical equipment, office equipment, packing machinery and transmission industry, offering customers reliable tailored solutions for driving and controlling.



4.Our Services
1). General Service:

2). Customization Service:
Motor specification(no-load speed , voltage, torque , diameter, noise, life, testing) and shaft length can be tailor-made according to customer's requirements.

5.Package & Shipping