The L51K13SOM101 uses a fine 2mm metal spike lever rather than a roller, providing the sensitivity to detect thin sheet, foil, or film stock that a standard roller arm would fail to register. Its low actuation force makes it suitable for materials that are too delicate or too thin for conventional limit switches.
Compare The EMAS L51 & L61 Range
L51 series - IP65, screw terminals with PG13.5 / M20x1.5 gland entry:
- L51K13PUM211 (10mm metal plunger)
- L51K13MIM311 (14mm metal roller lever)
- L51K13MEM121 (18mm metal roller arm)
- L51K13MEL121 (50mm rubber roller arm)
- L51K13ROP101 (9mm plastic rod lever)
- L51K13SOM101 (2mm metal spike spring lever) (this item)
- L51K13SOM102 (7mm metal blunt spring lever)
L61 series - IP67, supplied pre-wired with 2m cable:
- L61K13PUM211 (8mm metal plunger)
- L61K13MUM331 (13mm metal roller plunger)
- L61K13MEM121 (18mm metal roller arm)
- L61K13MEP121 (18mm plastic roller arm)
Not sure which series to choose? See the L51 vs L61 comparison in our Foot, Limit & Micro Switches collection.
Technical Details
Frequently Asked Questions
What is the spike lever used for?
The fine 2mm spike senses thin sheet, foil, or film stock with minimal actuation force, catching material a standard roller lever would miss.
Can this detect small components on a production line?
Yes — it's well suited to detecting small parts or thin materials on packaging and labelling lines.
How does this compare to the 7mm spike variants?
This 2mm spike is the finest and most sensitive option in the range, suited to the thinnest materials. The 7mm metal (L51K13SOM102) and plastic (L51K13SOP101) variants suit slightly larger or more robust detection needs.
Is this suitable for washdown or outdoor installation?
Yes — IP65 rated, protected against dust ingress and low-pressure water jets.
Industry Applications
- Thin sheet, foil & film detection — sensitive switching for delicate or lightweight materials
- Small component detection — production line sensing where a roller lever lacks the required sensitivity
- Packaging, labelling & print finishing — precise low-force detection on fast-moving material