Compact actuator
Thomson Electrak 1 / Electrak 1SP
Small sealed acme-screw DC actuator for light intermittent duty, available with limit switches (Electrak 1) or a potentiometer feedback version (1SP).
Key specifications
| Ingress protection | IP65 |
|---|---|
| Temperature | -25–65 °C |
| Force (max) | 340 N |
| Stroke (max) | 150 mm |
| Linear speed (max) | 75 mm/s |
| Screw type | acme |
| Supply | 12, 24, 36 Vdc |
| Duty | 25% at full load, 25 C |
| Sizes | Electrak 1 (limit switches), Electrak 1SP (10 kOhm potentiometer feedback, no end-of-stroke protection) |
Summarised in our own words from Regal Rexnord's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Page prints 340 N (75 lbf); 75 lbf x 4.448 = 334 N, so the metric figure is rounded by Thomson. Static 1,300 N. Specs listed only in the Electrak 1 column; assumed shared with 1SP. Training overview gives 100-300 N and 12/24 Vdc only (conflict with 36 V on product page).
Specify Motion is not affiliated with Regal Rexnord. Thomson and Electrak 1 / Electrak 1SP are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Thomson part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
12/24 VDC acme leadscrew push/pull actuator with internal gearbox and built-in limit switches, for light-industrial, mobility and furniture automation.
| Published maximum | Electrak 1 / Electrak 1SP | G-Series Leadscrew Linear Actuator |
|---|---|---|
| Force | 340 N | 6,000 N meets or exceeds |
| Stroke | 150 mm | 400 mm meets or exceeds |
| Speed | 75 mm/s | — |
Worm-gear acme screw DC actuator rated 6,000 N push with aluminium housing and stainless rod, for lifting beds, wheelchairs and automation.
| Published maximum | Electrak 1 / Electrak 1SP | GT44 Linear Actuator |
|---|---|---|
| Force | 340 N | 6,000 N meets or exceeds |
| Stroke | 150 mm | 400 mm meets or exceeds |
| Speed | 75 mm/s | 6 mm/s |
Compact 12/24 VDC acme screw actuator with powder-metal gearing in five ratios trading force (300-2,000 N) against speed.
| Published maximum | Electrak 1 / Electrak 1SP | GD Geared Linear Actuator |
|---|---|---|
| Force | 340 N | 2,000 N meets or exceeds |
| Stroke | 150 mm | 300 mm meets or exceeds |
| Speed | 75 mm/s | 40 mm/s |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other compact actuator series
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