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Keyence · industrial component
FS-L51 is a Keyence industrial component with Supply voltage 10...30 V DC (IEC 60947-5-2); Enclosure rating IP20 (IEC 60529); Operating temperature 0...+55 °C (IEC 60068-2-1). It is used in control panels, machine builds, spare-part replacements where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Supply voltage | 10...30 V DC (IEC 60947-5-2) |
|---|---|
| I/O and communication | |
| Response time | < 1 ms |
| Mechanical | |
| Mounting | DIN rail / panel |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | 0...+55 °C (IEC 60068-2-1) |
| Certifications | CE, cULus |
Values follow the Keyence industrial component specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| Keyence industrial component variants | |||
| Catalog number | Mounting | ||
|---|---|---|---|
| FS-L51 (this page) | DIN rail / panel | ||
| FS-L71 | DIN rail / panel | ||
| FS-MC8N | DIN rail / panel | ||
| FS-MC8P | DIN rail / panel | ||
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The FS-L51 is the device-level element in a Keyence industrial component installation. It receives the field signals and control supply listed above — 10...30 V DC (IEC 60947-5-2) — and switches or conditions the load within the the rated ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in control panels, machine builds, spare-part replacements, where the unit is matched to the original catalog number and the enclosure provides DIN rail / panel support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Keyence FS-L51 — Industrial automation component supplied as a like-for-like replacement, selected by catalog number and published ratings. The figures below are taken from the specification table on this page for catalog number FS-L51; confirm the installed unit's part number and revision so the replacement matches both electrically and mechanically.
For a discontinued unit, match function and electrical ratings rather than the label alone.
Q.Before ordering FS-L51, which operating temperature entry should be checked?
The operating temperature entry quoted above is 0...+55 °C (IEC 60068-2-1). Compare it with the nameplate of the installed unit before ordering.
Q.Where can I find the supply voltage data for FS-L51?
It is listed in the specification table for Keyence FS-L51 as 10...30 V DC (IEC 60947-5-2). Confirm this figure against the unit currently in the panel.
Q.For FS-L51, what does the specification table state about response time?
The specification table lists response time = < 1 ms for Keyence FS-L51. Use the value as the reference when sourcing a current-production equivalent.
Q.Can the FS-L51 replace the unit currently installed in my panel?
Compare catalog number FS-L51 and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.
Q.What should I include in an enquiry for FS-L51?
Send the full catalog number FS-L51, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Keyence FS-L51.
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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