Products & Manufacturers / Controls & HVAC Equipment / Pressure Switches
LEFOO · LF40-TD
LEFOO LF40-TD — Time Delay Switch Socket
A US-style timed outlet and pressure-actuated switch interface designed for applications where equipment should turn off automatically after a short activation period.

Technical specifications
| Product type | Time-delay socket with instantaneous-action switching |
|---|---|
| Timed action | Approximately 2-minute automatic shutoff, per external manufacturer listing |
| Electrical rating | 15 A at 120 VAC, per external product listing; verify on actual nameplate |
| Pressure/signal interface | Low-pressure pneumatic/sensor trigger; external product listing states below 1.8 psi |
| Manufacturer confirmation | Check LEFOO LF40-TD current wiring diagram and the selected variant before mains connection |
Specifications are manufacturer family values unless otherwise noted. Verify the current version and actual selected order code.
Engineering & selection notes
Unlike a conventional LF40 air button, this device incorporates time-controlled electrical power switching. Confirm whether the pressure or external input starts a timer, interrupts an active cycle or overrides the output in the particular installation. Do not substitute a general-purpose socket or LF40-01 switch solely because its mechanical connection looks similar.
Applications & compatibility
Useful for timed appliance or equipment control where a remote pneumatic or sensor input starts a limited operating interval. Ratings and timing are from a third-party LEFOO product listing and require comparison against the manufacturer’s supplied sheet.
Manufacturer & references
Manufacturer: LEFOO — manufacturer profile. Manufacturer documentation is provided for model selection; AirAlign is an independent technical reference, not an authorized distributor.
- LEFOO LF40-TD official product page
- LEFOO official specification downloads
- Third-party product listing — supplementary specification, independently verify
Independent technical listing. No manufacturer affiliation or endorsement is implied. Trademarks and product images remain subject to their owners’ rights. Editorial Policy.