Kollmorgen Essentials™ Servo Motors
Flexible Options. Value-Added Features.
Kollmorgen Essentials servo motors deliver exceptional performance and versatility across eight power ranges from 200 to 4,000 watts and frame sizes from 58 to 138 mm. Each motor features our breakthrough SFD-M multi-turn absolute feedback device with energy-harvesting technology that eliminates battery backup requirements while providing positioning performance comparable to Hiperface and EnDat systems. With industry-standard IEC mounting, an innovative shaft key kit for maximum installation flexibility, and plug-and-play compatibility, these motors are engineered to reduce complexity, inventory costs, and setup time while delivering the reliability and performance your applications demand.
Features
Kollmorgen Essentials servo motors suit a wide range of needs, eliminating the need for designers to stock specific excess inventory.
- Choose from eight power ranges from 200 to 4,000 watts and frame sizes from 58 to 138 mm
- Windings rated for 120, 240, 400 or 480 VAC
- 3,000 rpm rated speed, with a maximum speed of 6,000 rpm
- Option for integrated 24 VDC brake
- Industry-standard mounting reduces the need for excess inventory and improves field flexibility
- With a simple shaft key kit, users can adapt the shaft configuration to any smooth or keyed shaft coupling type—ready, off-the-shelf, for any application
SFD-M
With the integrated SFD-M device providing multi-turn absolute feedback to the highly responsive drive, customers can expect positioning performance comparable to Hiperface® or EnDat® feedback—without added cost.
- Single-turn resolution of 24 bits and multi-turn resolution of 16 bits
- Energy-harvesting technology eliminates the need for battery backup cables, which eliminates costly setbacks from unplanned downtime due to battery failure, retaining absolute positioning information even when the system is powered down or during a power outage or shutdown
- Onboard memory enables plug-and-play parameterization of the motor to compatible Kollmorgen drives reducing setup time and enabling faster commissioning
Specifications
- 4 frame sizes: 58, 84, 108, 138 mm
- 2 rated power options per frame size
- Works with all standard global voltages: 120, 240, 400 or 480 VAC
- Rated speed: 3,000 rpm (max speed: 6,000)
- 0.74 to 17.4 Nm continuous stall torque (6.55 to 154 lb-in) in 14 frame/stack/winding combinations
- Multi-turn absolute SFD-M encoder (Smart Feedback Device) offers 24-bit single-turn and 16-bit batteryless multi-turn resolution
- Industry-common IEC mounting
- Innovative key kit for single shaft-mount:
- Half key insert for smooth shaft
- Full key for keyed shaft
- 24 VDC brake option
- IP54 standard with optional, field-installable IP65 shaft seal kit available
240VAC Optimized Models
| Model | KEM-2V020 | KEM-2V040 | KEM-2V075 | KEM-2V100 | KEM-2V150 | KEM-2V250 | KEM-2V300 |
|---|---|---|---|---|---|---|---|
| Flange size, mm | 58 | 58 | 84 | 84 | 108 | 108 | 138 |
| 120VAC Rated Power, kW | 0.2 | 0.4 | 0.75 | 1.0 | 1.5 | 2.5 | 3.0 |
| 120VAC Rated Speed, rpm | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 |
| Max Mech. Speed, rpm | 6000 | 6000 | 6000 | 6000 | 5000 | 5000 | 4000 |
| Max Cont. Torque, Nm (lb-in) | 0.74 (6.5) | 1.4 (12.4) | 2.74 (24.2) | 3.63 (32.1) | 5.9 (52) | 10.1 (89) | 11.5 (102) |
| Peak Torque, Nm (lb-in) | 2.09 (18.5) | 3.96 (35) | 7.2 (64) | 9.7 (86) | 13.3 (118) | 23.4 (207) | 26.8 (237) |
| Rotor Inertia, kg-cm2 | 0.118 | 0.209 | 0.95 | 1.35 | 4.1 | 7.8 | 15.8 |
| Weight (non-brake), kg (lb) | 1.08 (2.4) | 1.48 (3.3) | 2.61 (5.8) | 3.11 (6.9) | 4.4 (9.7) | 6.4 (14.1) | 6.5 (14.3) |
400/480VAC Optimized Models
| Model | KEM-4V040 | KEM-4V075 | KEM-4V100 | KEM-4V150 | KEM-4V250 | KEM-4V300 | KEM-4V400 |
|---|---|---|---|---|---|---|---|
| Flange size, mm | 58 | 84 | 84 | 108 | 108 | 138 | 138 |
| 400/480VAC Rated Power, kW | 0.4 | 0.77 | 1.03 | 1.57 | 2.67 | 3.08 | 4.24 |
| 400/480VAC Rated Speed, rpm | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 |
| Max Mech. Speed, rpm | 6000 | 6000 | 6000 | 5000 | 5000 | 4000 | 4000 |
| Max Cont. Torque, Nm (lb-in) | 1.37 (12.1) | 2.68 (23.7) | 3.64 (32.2) | 5.8 (51) | 10.1 (89) | 11.8 (104) | 17.4 (154) |
| Peak Torque, Nm (lb-in) | 3.89 (34.4) | 7.0 (62) | 9.7 (86) | 13.1 (116) | 23.4 (207) | 27.3 (242) | 40.5 (358) |
| Rotor Inertia, kg-cm2 | 0.209 | 0.95 | 1.35 | 4.1 | 7.8 | 15.8 | 22.9 |
| Weight (non-brake), kg (lb) | 1.48 (3.3) | 2.61 (5.8) | 3.11 (6.9) | 4.4 (9.7) | 6.4 (14.1) | 6.5 (14.3) | 10.1 (22.3) |
Essentials motor Dimensional Overview
| Essentials Series* | Flange IEC | Length No brake | Length Brake | A Shaft L | ØB Shaft D (over key) | C Pilot L | ØD Pilot D | ØE Thru | F Shaft Center | ØG BCD | Removable Key - LxW |
|---|---|---|---|---|---|---|---|---|---|---|---|
| KEM-2V020-KE9xCB (200W) | 58 | 104.9 | 139.0 | 30 | 14h6 (16) | 2.5 | 50h6 | 5.8 | M5 | 70 | 20 x 5 (open) |
| KEM-xV040-KE9xCB (400W) | 58 | 133.4 | 167.5 | 30 | 14h6 (16) | 2.5 | 50h6 | 5.8 | M5 | 70 | 20 x 5 (open) |
| KEM-xV075-KE9yCB (750W) | 84 | 124.8 | 158.3 | 40 | 19h6 (21.5) | 3 | 70h6 | 7 | M6 | 90 | 32 x 6 (closed) |
| KEM-xV100-KE9xCB (1kW) | 84 | 142.3 | 175.8 | 40 | 19h6 (21.5) | 3 | 70h6 | 7 | M6 | 90 | 32 x 6 (closed) |
| KEM-xV150-KE9xCB (1.5kW) | 108 | 133.5 | 178.5 | 50 | 24h6 (27) | 3 | 95h7 | 9 | M8 | 115 | 40 x 8 (closed) |
| KEM-xV250-KE9xCB (2.5kW) | 108 | 170.5 | 215.5 | 50 | 24h6 (27) | 3 | 95h7 | 9 | M8 | 115 | 40 x 8 (closed) |
| KEM-xV300-KE9xCB (3kW) | 138 | 148.7 | 195.7 | 50 | 24h6 (27) | 3.5 | 110h7 | 9 | M8 | 145 | 40 x 8 (closed) |
| KEM-4V400-KE9xCB (4kW) | 138 | 171.2 | 218.2 | 50 | 24h6 (27) | 3.5 | 110h7 | 9 | M8 | 145 | 40 x 8 (closed) |
Note: All dimensions in metric (mm), unless otherwise specified
*Where "x" is either 2 - 120/240VAC optimized or 4 - 400/480VAC optimized & "y" is either N - No Brake or 2 - 24VDC brake
Sizing and Selection
Kollmorgen provides intuitive tools that simplify motion system design and help you select the right products with confidence to ensure your system is optimized from the start.
- Product Selector helps compare options based on actual torque, speed, power, supply voltage and current specifications
- Kollmorgen Motioneering helps size systems based on mechanical, electrical and performance inputs
Media & Downloads
| Title | File Language | Date | Share URL |
|---|---|---|---|
| Kollmorgen Essentials Cable Drive Feedback Connector Field Termination Instructions | English | |
Share URL /sites/default/files/2025-11/KEC%20Field%20Termination%20Instructions.pdf |
| Kollmorgen Essentials Documentation Portal | English | |
Share URL https://webhelp.kollmorgen.com/essentials/english/ |
| Kollmorgen Essentials Motor Installation Manual | English | |
Share URL /sites/default/files/2025-11/Essentials-Motor-Installation-RevA-EN.pdf |
| Kollmorgen Essentials Quick Start | English, German, Spanish, French | |
Share URL /sites/default/files/2025-10/Essentials-Quick-Start-Guide-Print-1_0.pdf |
| Kollmorgen Essentials EMC Single-Phase Filters Datasheet | English | |
Share URL /sites/default/files/2026-02/KED-1MF-xxx-Filter-Data-Sheet.pdf |
| Kollmorgen Essentials EMC Three-Phase Filters Datasheet | English | |
Share URL /sites/default/files/2026-02/KED-3MF-xxx-Filter-Data-Sheet.pdf |
| Kollmorgen Essentials Regen Resistors Datasheet | English | |
Share URL /sites/default/files/2026-02/Essentials-Regen-Resistors-Data-Sheet.pdf |
| Title | Language | Date | Share URL |
|---|---|---|---|
| Kollmorgen Essentials Catalog | English | Share URLview | |
| Kollmorgen Essentials™ Motion Systems Brochure | English | Share URLview |
These files cover the standard product family line. For environmental declarations for custom products, i.e. part numbers containing “S” or “X”, visit our Environmental Compliance search.
| Title | File Language | Date | Share URL |
|---|---|---|---|
| CE Technical Notice - Servo and Stepper Motors Efficiency | English | |
Share URL /sites/default/files/2026-01/CE%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors%2008Jan25.pdf |
| CEL China Efficiency Labelling for Servo and Stepper Motors | English | |
Share URL /sites/default/files/2026-01/CEL%20Technical%20Notice%20on%20Efficiency%20for%20Servo%20and%20Stepper%20Motors%2008JAN25.pdf |
| China Compulsory Product Certification (CCC Technical Notice) | English | |
Share URL /sites/default/files/2026-01/CCC%20Technical%20Notice%20on%20Scope%20of%20Kollmorgen%20Products%2008JAN25.pdf |
| Kollmorgen Essentials Motor (KEM) UL Certification | English | |
Share URL /sites/default/files/2025-10/KEM%20UL%20Certification%20E61960-Vol1-Sec17.pdf |
| Kollmorgen Essentials Motor EU RoHS Declaration of Conformity | English | |
Share URL /sites/default/files/2025-09/0_KEM_ROHS10W.pdf |
| Kollmorgen Essentials Motor PFAS Declaration | English | |
Share URL /sites/default/files/2025-10/0_KEM_PFAS.pdf |
| Kollmorgen Essentials Motor POP (Persistent Organic Pollutants) Compliance | English | |
Share URL /sites/default/files/2025-09/0_KEM_POP.pdf |
| Kollmorgen Essentials Motor Proposition 65 Statement of Compliance | English | |
Share URL /sites/default/files/2025-09/0_KEM_Prop65.pdf |
| Kollmorgen Essentials Motor REACH SVHC Declaration of Conformity | English | |
Share URL /sites/default/files/2025-09/0_KEM_REACH_SVHC_R247.pdf |
| Kollmorgen Essentials Motors EU Declaration of Conformity | English | |
Share URL /sites/default/files/2025-10/KEM%20CE%20Declaration%2030JULY25.pdf |
| Kollmorgen Essentials Motors UL (US & Canada) Certificate of Compliance | English | |
Share URL /sites/default/files/2025-10/KEM%20UL%20Certificate%20of%20Compliance.pdf |
| Kollmorgen Essentials System Demo System EU Declaration of Conformity | English | |
Share URL /sites/default/files/2026-02/DoC_EU_e_KES_2026_02_17.pdf |
These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work.
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Kollmorgen Essentials Motion Systems
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