Eaton
Eaton LS-S11S-L Limit Switch 1NC/1NO 4A 400V
A miniature limit switch with a 1.6 in roller lever plunger, 1NC/1NO contacts rated 4 A at 400 V, and NEMA 3, 3S, 4X, 6P enclosure protection
- Top-mounted plunger with 1.6 in roller lever for precise actuation
- 1NC/1NO contact form provides both normally open and normally closed circuits
- 4 A at 400 V AC rating suits industrial control circuits
- Miniature body 2.53 in high fits tight enclosure spaces
- NEMA 3, 3S, 4X and 6P ratings protect against dust, water and corrosion
Eaton LS-S11S-L limit switch
The Eaton LS-S11S-L is a miniature general-purpose limit switch designed for position sensing in industrial machinery and safety circuits. It suits engineers and maintenance teams who need a compact, top-actuated device with a roller lever for reliable end-of-travel detection.
Build quality and daily use
The switch carries NEMA 3, 3S, 4X and 6P ratings, meaning the enclosure resists rain, sleet, hose-directed water and temporary submersion. A 1.6 in roller lever provides smooth cam engagement while the 1NC/1NO contact block supports both safety and signalling circuits. The 1.22 in wide by 1.32 in deep body fits tight panels and the 2.53 in height keeps the profile low.
What it replaces and when to upgrade
It replaces worn or unsealed plunger switches on conveyors, lifts and guarding where ingress protection has failed. The jump is worth it when the application demands NEMA 4X or 6P sealing combined with a 4 A, 400 V AC rating in a miniature footprint. Buyers who need DC switching or a longer actuator should look elsewhere.
Highlights
- Top-mounted plunger with 1.6 in roller lever for precise actuation
- 1NC/1NO contact form provides both normally open and normally closed circuits
- 4 A at 400 V AC rating suits industrial control circuits
- Miniature body 2.53 in high fits tight enclosure spaces
- NEMA 3, 3S, 4X and 6P ratings protect against dust, water and corrosion
Specifications
| Brand | Eaton |
|---|
Questions about this item
What AC load does the 4 A / 400 V rating cap in practice?
The contacts are rated for 4 A at 400 V AC; DC loads are not rated.
What mounting footprint does the 1.22 in × 1.32 in body need?
The miniature body measures 1.22 in wide by 1.32 in deep, so the panel cut-out must accommodate those dimensions.
How is the top-mounted roller-lever plunger wired, and what step is often missed?
Wire the 1NC/1NO contacts to the screw terminals, then verify the 1.6 in lever travel clears the cam — forgetting to check over-travel is the common mistake.
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