Telemecanique Sensors
Telemecanique Sensors XCKP2121M12 limit switch roller lever 1NC/1NO 3A 240V
Top-mounted roller-lever limit switch with 1NC/1NO contacts rated 3 A at 240 V, miniature body sealed to NEMA 1, 2, 4, 6, 12 and 13
- Roller lever actuator enables precise mechanical positioning
- 1NC/1NO contact form provides both normally open and closed circuits
- Rated 3A at 240V AC and DC for versatile power handling
- Miniature body fits tight spaces at 2.56 in high, 1.22 in wide, 1.18 in deep
- NEMA 1, 2, 4, 6, 12, 13 ratings protect against dust, water and oil ingress
Role and fit
The Telemecanique Sensors XCKP2121M12 is a miniature limit switch with a top-mounted roller-lever plunger. It provides one normally closed and one normally open contact rated at 3 A for both 240 V AC and 240 V DC. The compact body measures 2.56 in high, 1.22 in wide and 1.18 in deep. NEMA 1, 2, 4, 6, 12 and 13 ratings suit indoor and outdoor industrial machinery.
Thermals noise power
As a passive electromechanical switch it generates no heat and draws no power in normal operation. There are no fans, pumps or active cooling elements, so acoustic output is limited to the mechanical click of the contacts. The sealed NEMA-rated enclosure keeps contaminants out without requiring any forced airflow.
Upgrade path
The switch replaces worn or damaged miniature limit switches that use the same 1NC/1NO contact form and 3 A 240 V rating. The jump is worth it when an application needs the broader NEMA 4, 6 and 13 environmental protection or the 0.8 in roller-lever actuator length. It does not suit installations that require a boot-sealed actuator or a different contact configuration.
Highlights
- Roller lever actuator enables precise mechanical positioning
- 1NC/1NO contact form provides both normally open and closed circuits
- Rated 3A at 240V AC and DC for versatile power handling
- Miniature body fits tight spaces at 2.56 in high, 1.22 in wide, 1.18 in deep
- NEMA 1, 2, 4, 6, 12, 13 ratings protect against dust, water and oil ingress
Specifications
| Brand | TELEMECANIQUE SENSORS |
|---|
Questions about this item
How is the top-mounted roller-lever plunger installed and what step is often missed?
Mount the miniature body using its 2.56 in height, 1.22 in width and 1.18 in depth footprint, then align the 0.8 in roller lever so the cam strikes the plunger squarely — the step often missed is verifying perpendicular actuation to avoid side loading.
What maintenance or replacement will the switch need later?
The boot-sealed actuator is absent, so inspect the roller lever and plunger seal regularly for debris ingress; replace the complete XCKP2121M12 unit when contact resistance rises or the lever fails to return cleanly.
Which limit appears first under sustained use at full load?
The 3 A at 240 V AC/DC contact rating is the limiting factor; continuous operation at that current will accelerate contact wear before the NEMA 1, 2, 4, 6, 12, 13 enclosure ratings are challenged.
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