EXC42 : EXC-Series BLDC Motor
Type: Servo Motor
Size: 4 inches or 10.2 cm
Peak Torque: to 1250 oz-in or 883 Ncm



High-Performance. Servo.
The EXC-Series 4-inch AC Servo motor offers customers high economic value and superior reliability. The EXC-Series is a cost-improved version of the popular Excalibur family of AC Servo motors sold under the Rockwell Automation brand. This product provides considerable cost improvements for a variety of light industrial, commercial, and medical applications.

EXC42 Speed / Torque Curves

exc42exc42exc42

EXC42 Mechanical / Winding Data

Stack Size Models EXC42 - 230 EXC42 - 350 EXC42 - 400
Continuous Stall Torque (oz-in) 230 350 400
Continuous Stall Torque (Ncm) 162.40 247.13 282.44
Peak Torque (oz-in) 750 1000 1250
Peak Torque (Ncm) 529.58 706.10 882.63
Motor Constant (oz-in / Watt) 36.70 50.60 57.40
Electrical Constant (msec) 3.56 3.80 3.81
Mechanical Constant (msec) 3.45 2.71 2.81
Rotor Inertia (oz-in-sec2) 0.0329 0.0194 0.0650
Rotor Inertia (gm-cm2) 2323.4 1370.0 4590.3
Thermal Resistance (C / Watts) 0.9 0.8 0.7
Weight (oz) 160.0 224.0 288.0
Weight (Kg) 4.5 6.4 8.2
Length (inches) 6.9 7.9 8.9
Length (cm) 17.5 20.1 22.6
Number of Poles 4 4 4

Winding Models EXC42 - 230V60 EXC42 - 230V160 EXC42 - 230V325 EXC42 - 350V60 EXC42 - 350V160 EXC42 - 350V325 EXC42 - 400V60 EXC42 - 400V160 EXC42 - 400V325
Design Voltage
(VDC)
60 160 325 60 160 325 60 160 325
Continuous Current
(Amps)
20 8 4 20 11 6 20 13 7
Peak Current
(Amps)
48 19 10 45 25 13 51 31 17
Voltage Constant
±10%
(VDC/kRPM)
12.8 32.2 63.3 18.2 32.3 62.5 20.0 33.3 62.2
Torque Constant
±10%
(oz-in / Amp)
17.3 43.6 85.6 24.6 43.7 84.5 27.1 45.0 84.1
Torque Constant
±10%
(Ncm / Amp)
1.222 3.079 6.045 1.737 3.086 5.967 1.914 3.178 5.939
Resistance
±10%
(Ohms)
0.2 1.4 5.6 0.2 0.8 2.8 0.3 0.6 2.0
Inductance
±10%
(mH)
0.8 5.0 19.3 0.9 3.0 10.6 0.8 2.3 8.2

EXC42 Outline Drawing

drawing_exc42.gif

EXC42 Commutation Sequence

hall diagram