When you're designing or repairing an industrial control panel, the component you choose has to match the job it performs. A limit switch body senses mechanical position, while an industrial control relay switches electrical loads based on control logic. The Telemecanique XCKL102 and the Square D 8501 X080 are both serious industrial components, but they serve different functions and come with different trade-offs. This head-to-head helps you see which one belongs in your circuit.
Quick Verdict
If your circuit needs a limit switch body for position sensing, the Telemecanique XCKL102 is the more direct fit, with an IP66-rated metal enclosure designed for AC control circuits. If you need a heavy-duty relay with multiple normally closed contacts and want to spend less, the Square D 8501 X080 costs $17 less and is a pragmatic choice for relay logic.
Comparison Table
| Product | Listed Price | Condition | Current Type | Role |
|---|---|---|---|---|
| Telemecanique XCKL102 Limit Switch Body | $44.99 | New old stock, original packaging | AC | Position-sensing limit switch body |
| Square D 8501 X080 Industrial Control Relay | $27.99 | Used, noted as tested | AC | Heavy-duty NEMA industrial control relay |
Where Each Product Wins
Telemecanique XCKL102 wins if...
You're replacing a limit switch body and want an IP66-rated metal component with original packaging. It's a straightforward pick for industrial position-sensing tasks where enclosure protection matters.
Square D 8501 X080 wins if...
You're building or troubleshooting relay logic and need eight normally closed contacts in a single relay. The 10A continuous thermal rating and 600V AC maximum cover a wide range of control loads, and the base can expand from 8 to 12 poles if your schematic grows.
Product Notes
Telemecanique XCKL102 Limit Switch Body Industrial Component New

The Telemecanique XCKL102 is a limit switch body aimed at industrial position sensing. It's listed as new old stock with original packaging, an IP66 rating, and metal construction, which makes it a good candidate when you want a replacement body that hasn't been installed in a live machine. The trade-off is that it's a switch body, not a fully assembled switch, so you're responsible for integrating the operating mechanism into your setup. If your priority is a fresh component for a limit-switch position sensor, this part gives you a solid starting point.
SQUARE D 8501 X080 Industrial Control Relay 8NC 12P 10A Total 120/110V Coil

The Square D 8501 X080 is a heavy-duty NEMA relay with eight normally closed contacts and a 10A continuous thermal rating. It's classified as used, with the description noting that it has been tested and remains functional despite minor cosmetic wear. That makes it a pragmatic option if you need a multi-contact relay and can tolerate some handling marks. The relay's base supports expansion from 8 to 12 poles, offering flexibility as your control scheme evolves. Its main limitation is the used condition itself-you're buying a component with prior service history, not a freshly manufactured unit.
Final Choice by Use Case
Choose the Telemecanique XCKL102 limit switch body when your job is position sensing and you want a new old stock metal component with strong enclosure protection. It's the higher-priced item, but it's built specifically for the role of a limit switch body.
Choose the Square D 8501 X080 relay when your panel needs dense N.C. contact capacity and you prefer the lower-priced option. With multiple normally closed contacts and heavy-duty NEMA construction, it's a practical fit for control relay applications.