Autonics SFL / SFLA Light Curtain, SFC Relay & SFN Door-Switch Alternatives — DAIDISIKE Equivalents

We keep cross-reference notes for the brands buyers most often arrive with — Omron, Keyence, SICK, Banner, Leuze. Autonics comes up a lot in Southeast Asia, and it is worth treating properly because, unlike a single light-curtain vendor, Autonics sells a whole small safety family: the SFL and SFLA light curtains, the SFC / SFC-R controllers and relays, the SFN magnetic non-contact switches with their SFC-N controller, and the SFD mechanical door switches. A real alternative has to answer all of those, not just the curtain. So this guide walks the stack part by part, built only from Autonics' public headline specs and DAIDISIKE's published specs.

One honest framing before the detail: a “replacement” for a safety device is never just a part number. It is a match on resolution, protective field height, sensing range and output / OSSD scheme, followed by re-bracketing, re-pinning and a fresh ISO 13855 distance check. Those comparisons identify a candidate; electrical compatibility, all required safety functions and validation on the machine decide acceptance.

What is the DAIDISIKE equivalent of the Autonics SFL light curtain?

Start with the original SFL order code. Autonics publishes detection classes and operating limits for specific variants. Match the documented detection capability, active height, range and response time before considering a substitute; a DAIDISIKE family name is not evidence of the same Type, PL or SIL. Keep the original muting, blanking and restart requirements in the comparison.

Compare DQA and DQC configurations against that baseline. Require the exact safety declaration, manual and output diagram; catalogue beam pitch is not automatically detection capability. Confirm output current, test pulses, discrepancy timing and compatible safety-input configuration before choosing either.

What is the difference between the SFL and SFLA — and which DAIDISIKE model fits each?

SFL and SFLA must be compared at the function level. Establish which muting, blanking, restart and diagnostic features the installed model actually uses. A DQT4 candidate requires its own documented capability for those functions; its name does not make it the SFLA counterpart, nor are DQA and DQC automatic SFL replacements.

Autonics SFL / SFLA ↔ DAIDISIKE cross-reference table

Match on detection capability (Ø14 / Ø20 / Ø30 mm) and Type 4 / PL e class first; confirm protective height and range against the original label. This is a starting map from public specs, not a drop-in part number.

What is the equivalent of the Autonics SFC-R safety relay?

Compare the original SFC / SFC-R controller's input type, fault detection, response time, reset, feedback, output contacts and expansion requirements. Consider DA31 only where its supplied manual supports the required circuit. Do not assume OSSD evaluation or EDM from its product name, and do not use auxiliary contacts as the protective output without the specified architecture.

Is the Autonics SFN a magnetic or RFID non-contact switch, and what replaces it?

Autonics SFN uses magnetic coded non-contact detection and a specified controller arrangement. DX-R1 may be compared by sensing principle, but the actuator, output circuit, coding and safety data still need to match the application. Magnetic sensing alone does not establish ISO 14119 Type 4 coding or controller interchangeability. For an SFD mechanical interlock, also assess actuation direction, defeat resistance and any required guard locking.

How does the Autonics SFL compare with SICK and Banner — and where does a China OEM fit?

Compare equivalent installed functions before price or availability. Brand families can contain different ratings and feature sets; a broad Type 4 claim does not establish an equal candidate. Include safety logic, brackets, connectors, stopping-distance changes and validation in the quotation, and confirm current delivery conditions with each supplier.

Buying Autonics safety light curtains in Vietnam — and the local alternative

Autonics ships through distributors with price-on-inquiry; DAIDISIKE sells the equivalent direct, which is the practical edge in Vietnam and Southeast Asia. Because Autonics lists no public prices on its safety line, a quote depends entirely on your distributor and stock. For buyers in Vietnam looking for an Autonics SFL distributor alternative (đại lý / cảm biến rèm an toàn Autonics thay thế), DAIDISIKE offers OEM-direct pricing on the SFL / SFLA-class curtains, the DA31 relay and the DX-R1 switch — MOQ 1 set, 3–15 day lead time, and direct engineering support. Send the four spec numbers off your installed Autonics unit and we will return a matched DQC / DQA / DQT4 build, or tell you plainly if it doesn't fit.

Is naming Autonics legal, and how do you keep the comparison honest?

Naming Autonics to describe a compatible alternative is nominative reference and is legitimate; the comparison stays honest by using only Autonics' published headline specs. We reference Autonics, SFL, SFLA, SFC, SFN and SFD by name to tell you what the DAIDISIKE equivalent is — normal, lawful comparison. We do not reproduce Autonics manuals, use their logos, or quote a parameter we cannot confirm from their public datasheets. Every Autonics figure above is a published headline spec; every DAIDISIKE figure is from our own spec sheets. We deliberately do not invent prices, certificate numbers or response-time figures for either brand — where a number isn't verifiable, it isn't in the table.