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Small black rectangular reed switch with two-wire cable attached

SPEEDAIRE

SPEEDAIRE SMC D-C80L Reed Switch 24VDC Normally Open 3M Lead

SKU CH-9QNW-G7RD7

Reed switch with 3 m lead, 24 V DC normally-open operation for bore sizes 8 to 40 mm

  • Ready for 24 V DC systems with 50 mA max switching
  • Works with bore diameters from 12 mm to 40 mm
  • Operates from 14 °F to 140 °F for wide temperature range
  • 8 ft pre-wired lead speeds up installation
  • Normally open reed switch suits pneumatic cylinder position sensing

SMC D-C80L Reed Switch for Pneumatic Cylinders

This SMC D-C80L reed switch detects piston position on pneumatic cylinders with bore diameters of 12, 16, 25, 32, and 40 mm. It operates at 24V DC with a normally open contact and a maximum switching current of 50 mA. The unit suits automation technicians maintaining or building air-driven machinery.

Verify Cylinder Bore and Wiring Before Installation

Confirm the cylinder bore matches one of the listed diameters and that the control circuit runs on 24V DC within the 50 mA limit. The switch includes a 9.8 ft two-wire lead for direct connection. Operating temperature range is 14 to 140 degrees F.

Replaces Failed or Missing Magnetic Position Sensors

Use this switch to replace a damaged reed sensor or to add position feedback where none existed. The jump is worthwhile when a machine requires reliable end-of-stroke signalling and the existing cylinder bore falls within the supported range.

Highlights

  • Ready for 24 V DC systems with 50 mA max switching
  • Works with bore diameters from 12 mm to 40 mm
  • Operates from 14 °F to 140 °F for wide temperature range
  • 8 ft pre-wired lead speeds up installation
  • Normally open reed switch suits pneumatic cylinder position sensing

Specifications

BrandSMC

Questions about this item

What comes in the box and what must I buy separately?

The package contains the SMC D-C80L reed switch with a 9.8 ft pre-wired 2-wire lead. You must supply a 24V DC power source and a compatible cylinder with 8, 12, 16, 25, 32 or 40mm bore.

Which version should I choose for my cylinder bore?

This single model covers bore diameters of 8, 12, 16, 25, 32 and 40mm; select it when your cylinder bore matches one of those sizes.

What does the 50 mA switching current mean in practice?

The switch can control loads up to 50 mA at 24V DC, so it is suited for PLC inputs or small relays but not for driving solenoids or motors directly.

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