KEM-4V250-KE92CB Kollmorgen Essentials 240/480 VAC 2500W Servo Motor
Sku#: KEM-4V250-KE92CB
The Kollmorgen KEM-4V250-KE92CB Servo Motor is a high-torque 2.5 kW, 240/480 VAC servo motor designed for demanding industrial automation. As part of the Kollmorgen Essentials™ product family, this motor delivers exceptional torque density, precision, and rugged performance for OEM machine builders who need reliable, cost-optimized motion.
This 108 mm IEC-frame servo motor provides a robust 10.1 Nm continuous stall torque (with brake) and an impressive 23.4 Nm peak torque, making it ideal for heavy-load axes, material forming, packaging machinery, gantries, and medium-to-high-power automation tasks. It supports a maximum mechanical speed of 5000 rpm, enabling fast acceleration and high throughput.
The model includes a 24 VDC failsafe holding brake, providing reliable load retention for vertical axes and safety-critical applications. Kollmorgen’s SFD-M Smart Feedback Device offers 24-bit single-turn and 16-bit battery-free multi-turn absolute feedback, ensuring < ±1 arc-minute positioning performance and automatic recognition in Kollmorgen Essentials and AKD-series drives for rapid commissioning.
A rotatable M23 hybrid connector consolidates power, brake, and feedback wiring into one compact interface, simplifying installation. The motor uses the Essentials standard mount and supports smooth or keyed shaft operation via the included shaft-key kit.
Industrial durability is ensured through Class F (155°C) insulation, a PTC thermal sensor, and a winding system designed for 100°C temperature rise. Standard IP54 protection can be upgraded to IP65 with an optional shaft-seal kit for harsher environments.
This powerful motor integrates seamlessly with Kollmorgen Essentials drives, offering support for EtherCAT®, PROFINET®, and EtherNet/IP™, plus single-cable connectivity for streamlined wiring and faster commissioning.
Key Technical Specifications (Verified)
| Parameter | Value |
|---|---|
| Model Number | KEM-4V250-KE92CB |
| Power Class | 2.5 kW |
| Voltage Class | 240 / 480 VAC (3-phase) |
| Frame Size | 108 mm IEC |
| Continuous Stall Torque (with brake) | 10.1 Nm |
| Peak Torque | 23.4 Nm |
| Continuous Current (480 VAC) | 6.9 Arms |
| Peak Current | 17.2 Arms |
| Rated Speed | 3000 rpm |
| Maximum Speed | 5000 rpm |
| Feedback Device | SFD-M absolute encoder (24-bit ST + 16-bit MT) |
| Holding Brake | 24 VDC failsafe brake |
| Connector Type | 90° M23 hybrid (power + brake + feedback) |
| Mounting | IEC standard mount with keyed/smooth shaft options |
| Protection Rating | IP54 standard (IP65 optional) |
| Insulation Class | Class F (155°C) |
| Weight (with brake) | ~7.6 kg |
| Pole Pairs | 5 |


