Limit Switches & Accessories | Industrial Position Detection

POSITION SENSORS Limit switches and accessories

Limit switches are electromechanical position sensors used across conveyors, machine tools, cranes, presses, and guard interlocking systems. Engineers choose them for direct-contact detection without a separate sensor supply, high switching reliability, and availability in configurations from basic position feedback to SIL 2/PLd safety circuits. Telemecanique (Schneider Electric) XCK and OsiSense XC series are among the most widely specified in European industrial installations.

Limit switches

Mechanical limit switch cases

Limit switch actuators

Mechanical limit switch accessories

Application-specific limit switches

Microswitches and miniature limit switches

Latest products

Variable length thermoplastic roller lever, XCE145C

Code: XCE145C

Supplier:

47.40 EUR (w/o VAT)

Limit Switch Metal 2 N Nd 2 Nc, XCMD4102L01SGO

Code: XCMD4102L01SGO

Supplier:

178.30 EUR (w/o VAT)

Limit switch, XCKVR, stay put crossed rods lever 6 mm, 2x(NC+NO), slow, M20, XCKVR44D1H29

Code: XCKVR44D1H29

Supplier:

239.80 EUR (w/o VAT)

Limit switch lever, 9007, arm t+ft +options, 9007B7

Code: 9007B7

Supplier:

73.90 EUR (w/o VAT)

Limit switch body, ZCMD, 2NC, gold, snap action, connection, M12, ZCMD69C12

Code: ZCMD69C12

Supplier:

121.00 EUR (w/o VAT)

Limit switch body, ZCKJ, fixed, w/o display, 2NC, slow break, Pg13, ZCKJ7

Code: ZCKJ7

Supplier:

66.30 EUR (w/o VAT)

Limit switch, XCKJ, thermoplastic plastic roller lever var length, 1NC+1 NO, snap, 1/2NPT, XCKJ10541H7

Code: XCKJ10541H7

Supplier:

120.20 EUR (w/o VAT)

Limit switch, XCKN, plastic roller lever Ã˜ 50 var.length, 1NC+1 NO, snap, M20, XCKN2149P20

Code: XCKN2149P20

Supplier:

44.40 EUR (w/o VAT)

Limit switch, XCKN, cat's whisker, 1NC+1 NO, snap, Pg11, XCKN2106G11

Code: XCKN2106G11

Supplier:

30.00 EUR (w/o VAT)

Limit switch, XCKN, metal end plunger, 1NC+1 NO, snap, Pg11, XCKN2110G11

Code: XCKN2110G11

Supplier:

22.00 EUR (w/o VAT)

Actuator types, contact blocks, housings, and mounting accessories

This category covers complete limit switch assemblies and their individual components. Standard and heavy-duty switch bodies (die-cast zinc or aluminum) handle cam-operated machinery, conveyor end-of-travel, crane hoists, and press ram detection. Miniature limit switches fit tight spaces in packaging and robotics. Safety limit switches with positive-opening contacts are used in guard door interlocking and safety-rated control circuits. Rope pull switches run along conveyor lines for emergency stop or belt misalignment detection.

Actuator heads are typically sold separately or as part of a modular assembly: roller lever and adjustable roller lever heads suit cam/dog-operated machines; plunger heads handle direct linear push; whisker actuators detect light contact in packaging lines; fork actuators capture rods or cams between two tines.

Accessories include replacement contact blocks (NC, NO, SPDT, DPDT), conduit entry fittings (M20, PG13.5, ½" NPT), mounting brackets, actuator arm extensions, sealing plugs for unused ports, and cam/trip dogs mounted on the machine side.

Key technical selection criteria

Actuator type: Match roller lever, plunger, whisker, or fork to your cam geometry and approach angle
Contact configuration: NC, NO, SPDT, DPDT; positive-opening required for safety circuits
Voltage and current rating: AC-15 for inductive AC loads; DC-13 for inductive DC loads
IP rating: IP65/IP66 for standard washdown; IP67K/IP69K for high-pressure food and chemical environments
Housing material: Die-cast zinc or aluminum for general use; stainless steel for corrosive environments
Operating temperature: Verify range for cold storage or outdoor installations
Modularity: Check whether contact blocks and actuator heads are field-replaceable independently

Comparison overview

Type	Typical Application	Key Feature
Standard roller lever	Conveyors, machine tools	Spring-return, cam-operated
Heavy-duty metal body	Cranes, presses, hoists	High mechanical durability
Safety / positive-opening	Guard interlocks, safety gates	Forced contact separation
Miniature	Packaging, robotics	Compact form factor
Rope pull	Conveyor lines	Distributed emergency stop

When is a positive-opening contact required instead of a standard snap-action contact?

Positive-opening contacts are required in safety circuits such as guard door interlocks, where contact welding must be mechanically broken. Standard snap-action contacts are not acceptable for these applications.

Can I replace only the contact block without replacing the entire limit switch body?

Yes, on modular designs such as Telemecanique XCK series, contact blocks are field-replaceable independently of the switch body and actuator head, reducing maintenance cost and downtime.

Which IP rating do I need for a high-pressure washdown zone in a food processing plant?

IP69K is required for high-pressure, high-temperature washdown. IP67 covers temporary immersion but is not sufficient for direct high-pressure spray typical in food and beverage lines.

What is the difference between AC-15 and DC-13 utilization categories for limit switches?

AC-15 applies to switching inductive AC loads such as contactors and solenoids; DC-13 applies to inductive DC loads. Always match the utilization category to your actual load type to ensure correct electrical life rating.