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E21NCHT-LDN-SS-04 by Kollmorgen

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The E21NCHT-LDN-SS-04 stepper motor from Kollmorgen is part of the E Hybrid Stepper Motors series. It delivers 123 oz-in of holding torque with a 1.8° step angle, operates at 2.8 A per phase, and has a phase resistance of 0.72 ohms. The motor features a detent torque of 4.8 oz-in and a thermal resistance of 6.0 °C/W, with a rotor inertia of 0.0015 oz-in-s². It supports a radial shaft load of 19 lb and weighs 1.2 lb.

Technical Specifications

Configuration
Parallel
Cooling Type
Passive
Detent Torque
4.8 oz-in (0.034 Nm)
Holding Torque
123 oz-in (0.87 Nm)
Interface Type
RS232
Motor Weight
1.2 lb (0.54 kg)
Phase Resistance
0.72 ohms
Power Consumption
25W
Radial Force (Shaft Loading)
19 lb (85 N)
Rated Current
2.8 Amps per phase
Rotor Inertia
0.0015 oz-in-s² (0.011 kg·m² × 10^-3)
Thermal Resistance
6.0 °C/W
Voltage Range
100-240V AC
Weight
500g

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