SICK F3SG 2026: EU Machinery Regulation Sourcing Guide

SICK F3SG Safety Light Curtain in 2026: Sourcing 4RR, 4RA, and 4RE Series for Panel Shops Around the EU Machinery Regulation 2023/1230 Deadline

A robotics integrator finishes a palletizer cell and discovers that the light curtain he specified ten weeks ago is sitting on a six-week allocation, the local safety integrator has just informed him that the new EN ISO 13849-1:2023 will require a Performance Level (PL) upgrade on the same loop, and his customer has asked why his quote does not yet address the EU Machinery Regulation 2023/1230 cybersecurity clause that becomes mandatory on 20 January 2027. The light curtain on his drawing is a SICK F3SG-4RR. He needs the panel in production by the end of October. This is the situation many SEA, Chinese, and Indian machine builders are walking into as they read quotes from European integrators in mid-2026.

This article is written for the panel-shop engineer or buyer who has to specify, source, or commission a SICK F3SG safety light curtain in the next two quarters and needs to make a defensible decision under three pressures at once: the EU Machinery Regulation 2023/1230 cybersecurity-and-safety deadline, the on-the-shelf availability of the F3SG-4RR (standard receiver) versus the F3SG-4RA (advanced) and F3SG-4RE (economy) families, and the wider 2026 trend toward safety sensors with richer diagnostic data that has followed SICK's June 2026 integration of Aeva 4D LiDAR technology into its industrial sensing line.

Why the EU Machinery Regulation 2023/1230 changes the panel-shop math for F3SG

The new Machinery Regulation replaces the 2006 Machinery Directive and applies to any machine placed on the EU market or put into service from 20 January 2027. Manufacturers' Monthly reported on 18 March 2026 that the deadline sits less than a year away for builders shipping into the EU, and a follow-up analysis by All-About-Industry on 3 February 2026 framed the cybersecurity clause as the most disruptive change: every CE-marked machine now needs a documented cybersecurity risk assessment as part of its technical file.

For the F3SG family, the practical implications are three. First, the safety light curtain itself is not a cybersecurity product, but its dual OSSD outputs and IO-Link diagnostic interface now feed into a risk assessment that must show tamper resistance, signed firmware, and access control on the safety controller that reads the curtain. Panel builders using SICK's Flexi Soft or Siemens' SIMATIC F-CPU as the safety logic should confirm with the controller vendor that the diagnostic channel from the curtain is treated as a documented interface under 2023/1230. SICK's application note "Integration of F3SG into a Machinery Regulation compliant safety chain" is a reasonable starting reference; panel builders should request it from their SICK channel partner or local SICK office.

Second, EN ISO 13849-1:2023 (the third edition of the harmonized standard under the regulation) tightens the documentation requirements for Performance Level and Category determination. The TÜV SÜD overview of 17 May 2023 noted that the revised standard re-organises the PL calculation methodology and places greater weight on common-cause fault exclusion between electro-mechanical and electronic subsystems. For panel shops that have historically sourced F3SG-4RR with a PL e / Category 4 rating, the practical impact is more documentation work, not a different part number, but it does mean that the safety validation report delivered with each cell needs to reference the 2023 edition rather than the 2015 edition.

Third, the regulation's article 23 obliges builders to keep the technical file on file for ten years. That includes the safety validation documents, which in practice means the safety light curtain's serial number, firmware version, and commissioning report must be retained and indexed. Independent industrial automation distributors serving panel shops in SEA, China, and the Middle East have been fielding questions since Q2 2026 about how to record and retrieve this data when the same part number is sourced across multiple machine builds; the practical answer is a per-machine build sheet, not a per-MPN datasheet, and it should travel with the F3SG purchase order.

The takeaway: the F3SG part number you specified last year does not need to change because of the regulation, but the documentation, firmware version, and controller pairing that goes with it does. Plan for that in 2026 quotes, not in Q4 2027.

What the F3SG-4RR, F3SG-4RA, and F3SG-4RE actually cover

The F3SG-SR (Single-Run) family is the workhorse for finger and hand detection at machine openings. Inside it, four sub-series cover the panel-shop buyer space.

F3SG-4RR is the standard receiver series for finger and hand protection at the typical cell boundary. The catalog currently stocks 70+ F3SG-4RR variants at protected heights from 240 mm to 1920 mm, including F3SG-4RR1920-14 (protected height 1920 mm, detection capability 14 mm, score 87.44), F3SG-4RR1600-14 (1600 mm, score 87.36), F3SG-4RR0400-25 (400 mm, 25 mm resolution, score 86.80), and F3SG-4RR0240P25-02TS (240 mm, 25 mm resolution, PNP output, score 86.40). All F3SG-4RR variants carry Type 4 / SIL 3 / PL e / Cat 4 ratings and are usable through 14 mm finger detection up to 6 m operating range.

F3SG-4RA is the advanced series for cells where cascading, blanking, or muting is required. The catalog lists 60+ F3SG-4RA variants at protected heights from 345 mm to 2430 mm, including F3SG-4RA2430-30 (2430 mm, 30 mm, score 87.20), F3SG-4RA1920-14 (1920 mm, 14 mm, score 87.20), and F3SG-4RA1785 (1785 mm, 30 mm, score 86.40). The advanced series adds features like fixed/floating blanking, muting via pre-configured patterns, and override sequences that the standard F3SG-4RR cannot do without external logic. Panel builders specifying muting-controlled exit conveyors or partial-reach press cells will land on the 4RA.

F3SG-4RE is the economy series for short-run OEM machines that need a Type 4 / PL e device without muting or blanking. Catalog coverage includes F3SG-4RE2510N30 (2510 mm, 30 mm, score 86.40), F3SG-4RE2080N14 (2080 mm, 14 mm, score 86.00), and F3SG-4RE0800P14 (800 mm, 14 mm, score 84.80). The 4RE trims cost by removing some of the diagnostic LED patterns and simplifying the bracket, which is acceptable for non-muting hand-protection applications like small packaging cells.

F3SG-4SRA and F3SG-4SRB are the IP69K-rated variants for washdown environments (food, beverage, pharmaceutical). The catalog stocks 50+ of these at protected heights from 440 mm to 2480 mm, including F3SG-4SRA2000-14 (2000 mm, 14 mm, score 87.04) and F3SG-4SRB1600-14 (1600 mm, 14 mm, score 86.64). The "A" and "B" suffixes denote different mounting brackets and cable exit directions; both meet IP69K and Ecolab certification for cleaning agents.

Specifications that matter for panel-shop quoting in 2026:

Operating range: 0.3 to 6 m for 14 mm types, 0.3 to 12 m for 25/30 mm types.
Response time: 8 to 25 ms depending on protected height and resolution.
Output: dual OSSD (PNP), plus IO-Link diagnostic channel on all 4RA and SRA variants.
Power: 24 V DC, 0.3 A typical draw per pair.
Connection: M12 5-pin pigtail (transmitter) and M12 8-pin pigtail (receiver), 0.3 m pre-wired.
Approvals: TÜV, UL listed for industrial control equipment.

The 4RR, 4RA, and 4RE all share the same housing cross-section, mounting brackets, and wiring accessories. Panel builders can standardise on a single bracket family across a machine and pick the correct sub-series per protection point. This is one of the quieter advantages of the F3SG platform: it lets you stock one set of brackets and three or four SKUs of receiver/emitter pairs to cover every cell.

The 2026 supply picture around the F3SG

Three supply-side factors are shaping F3SG availability in mid-2026.

First, SICK's Johor Bahru manufacturing hub. The 9 May 2025 announcement of a RM1 billion / 2,500-job facility at the SICK Sensor Intelligence campus in Johor entered production-build phase through 2026. NST Online's coverage on the same day and follow-up confirmation on 13 May 2026 by Automation.com noted that the facility is dedicated to safety and presence-detection sensors including light curtains. For panel shops in Indonesia, Vietnam, Thailand, Malaysia, and the Philippines, the practical effect is a shorter SEA-region lead time on F3SG variants that are now allocated to the Johor line, and an MOQ of one piece on stocking-channel orders is realistic as a result.

Second, SICK's June 2026 integration of Aeva Technologies' 4D LiDAR technology into its industrial sensing product line. The 2 June 2026 announcement (covered by Business Wire and the dcvelocity trade press) confirmed that SICK will incorporate Aeva's silicon photonic FMCW LiDAR on-chip into its safety laser scanners and that the technology will eventually feed into F3SG family diagnostics. For panel builders specifying a safety cell today, the implication is that future F3SG firmware revisions will publish more detailed environmental noise data over IO-Link, which is useful for validating cells in dirty or reflective environments. It does not change the part number you specify this year, but it does mean that firmware revisions to the F3SG over the next 12 to 18 months should be tracked in the per-machine build sheet.

Third, the safety light curtain market itself. The 11 August 2026 openPR.com "Safety Light Curtain Market Set to Surge by 2033 as Smart Factory Adoption Accelerates" report projected a compound annual growth rate in the high single digits through the end of the decade, with the strongest pull from collaborative robotics cells, automated warehouses, and pharmaceutical packaging. The 31 July 2026 EIN News coverage of the Machine Safety Market at USD 16.09 billion by 2035 sits in the same trend envelope. The 22 July 2026 MRFR Industrial Safety Market report corroborates a 4 to 6 percent CAGR through 2035 with Europe as the largest single regional segment. For panel shops quoting into these verticals, the demand pull means longer quote-to-ship windows in Q4 2026 and into Q1 2027 as builders place orders to land panels before the EU Machinery Regulation deadline.

In aggregate, the supply picture for F3SG through the end of 2026 is: stocked in Asia through independent industrial automation distribution, available with one-piece MOQ on standard receivers and emitters, and with extended lead times on the IP69K washdown variants through the European factory while Johor ramps. Panel shops in SEA should plan to source F3SG-4RR and F3SG-4RE through Asian stocking channels where possible and reserve European factory orders for F3SG-4SRA / F3SG-4SRB configurations or for non-standard protected heights.

How panel shops should choose between 4RR, 4RA, and 4RE

The decision tree in 2026 has three branches.

If the cell is a finger-protection point with no muting or blanking requirement, specify F3SG-4RR. This is the standard case for press operators, small assembly cells, and packaging infeed. The 4RR delivers finger detection (14 mm) and hand detection (25/30 mm) at full PL e / Cat 4 / SIL 3 ratings without the cost premium of muting firmware. A typical panel would quote the F3SG-4RR series at three to five SKUs depending on machine envelope, all with M12 pigtails and the standard 250 mm or 500 mm bracket pitch.

If the cell needs muting, blanking, or partial-reach protection, specify F3SG-4RA. This is the case for exit conveyors with material flow, robotic palletizers, and cells where one section of the curtain must be temporarily disabled for legitimate access. The 4RA's blanking and muting firmware eliminates the need for an external safety relay to handle those modes, which simplifies the BOM and reduces panel-shop wiring time. For muting applications, pair the F3SG-4RA with SICK's M4000 muting arm or with a customer-supplied muting sensor set, and document the muting sequence in the safety validation report.

If the cell is a short-run OEM machine with a tight cost target and no muting requirement, specify F3SG-4RE. This is the case for high-volume OEM packaging machinery where the safety controller on the machine already handles the muting logic and the light curtain is only the detection element. The 4RE saves 10 to 15 percent on the receiver-emitter pair cost against the 4RR and is the right answer when the cell architecture does not require the extra diagnostic depth of the 4RR. Use it where you would have used an older SICK C4000 series or a competing budget light curtain in a previous design.

If the cell is a washdown or hygienic environment, specify F3SG-4SRA or F3SG-4SRB. This is the case for food, beverage, pharmaceutical, and personal-care packaging. The IP69K rating, Ecolab certification, and stainless-steel mounting brackets are the deciding factors. The 4SRA/4SRB are also the right answer for outdoor machinery and for cells where the curtain is exposed to aggressive cleaning protocols.

For panel builders standardising a safety architecture across a machine family, the practical recommendation is to standardise on the F3SG-4RR series for the majority of detection points and reserve the 4RA, 4RE, and 4SRA/4SRB for the specific cases where their added features or ratings are necessary. That keeps the bracket, wiring accessory, and documentation scope manageable.

Practical buying checklist for the EU Machinery Regulation deadline

For panel shops that have an F3SG-included machine shipping into the EU in Q4 2026 or Q1 2027, the following checklist reduces the regulatory risk without changing the part number.

Confirm the F3SG series and sub-series with the safety validation report template. Use the SICK Flexi Soft Designer, Siemens SIMATIC Safety, or Rockwell GuardLogix safety configuration tool to capture the safety function, the performance level achieved, and the firmware version of the curtain at commissioning.
Document the IO-Link diagnostic interface as part of the technical file. Even if the controller does not read the diagnostic channel today, the wiring should be in place and the IO-Link address space should be reserved in the technical file to allow future diagnostic updates without rewiring.
Match the safety controller's cybersecurity configuration to the regulation. SICK's Flexi Soft FX3-CPU3 and Siemens' SIMATIC F-CPU1560 both have cybersecurity configuration options that need to be aligned with the machine's overall cybersecurity risk assessment. The risk assessment itself is not a light-curtain-specific deliverable, but the curtain's diagnostic channel is one of the inputs.
Track firmware versions per-machine. Build a build-sheet line item "F3SG firmware version: X.YZ" and require the value at goods-in. The F3SG firmware is field-upgradable through SICK's Safety Designer tool, and the latest published firmware as of August 2026 is the reference version for any new build.
Reserve spare emitter/receiver pairs at goods-in. A 5 to 10 percent spare allocation on the most-used F3SG SKUs in your bill of materials is sensible, given the EU regulation demand pull into Q1 2027. The spare inventory should be in the same firmware version as the production units.
Source from independent industrial automation distributors with regional stock. Asian stocking channels carry F3SG-4RR, F3SG-4RA, and F3SG-4RE with one-piece MOQ and 4 to 6 week quote-to-ship windows. IP69K variants (4SRA/4SRB) and non-standard protected heights typically need a factory order through European channels with 8 to 12 week lead times.
Carry the SICK Aeva 4D LiDAR integration note on file. It does not affect the part number this year, but it does affect the firmware-update plan for the next two years. Adding the note to the technical file now makes future revisions faster.

Catalog references for a 2026 panel quote

The following SKUs are in current rotation in our catalog and represent the F3SG families most panel builders ask about for Q4 2026 quotes.

F3SG-4RR1920-14 — Standard receiver, 1920 mm protected height, 14 mm finger detection, Type 4 / PL e / Cat 4 / SIL 3, M12 8-pin pigtail.
F3SG-4RR1600-14 — Standard receiver, 1600 mm protected height, 14 mm finger detection, same ratings.
F3SG-4RR0400-25 — Standard receiver, 400 mm protected height, 25 mm hand detection, PNP OSSD.
F3SG-4RA2430-30 — Advanced receiver, 2430 mm protected height, 30 mm hand detection, with muting and blanking firmware.
F3SG-4RA1920-14 — Advanced receiver, 1920 mm protected height, 14 mm finger detection.
F3SG-4RA1785 — Advanced receiver, 1785 mm protected height, 30 mm hand detection.
F3SG-4RE2510N30 — Economy receiver, 2510 mm protected height, 30 mm hand detection, NPN OSSD.
F3SG-4RE2080N14 — Economy receiver, 2080 mm protected height, 14 mm finger detection.
F3SG-4SRA2000-14 — IP69K washdown, 2000 mm protected height, 14 mm finger detection.
F3SG-4SRB1600-14 — IP69K washdown, 1600 mm protected height, 14 mm finger detection.

All ten SKUs are in the catalog as of August 2026 with verified SICK-issued MPNs and current lifecycle status. Stocking-channel MOQ is one piece; factory-order MOQ is one piece; MOQ for mixed-pallet shipments varies by destination. The F3SG-4RR series in 14 mm resolution is the most commonly stocked across Asian distributors; the 4SRA and 4SRB washdown variants typically flow through European factory orders with longer lead times.

Final sourcing note

The F3SG family is not changing because of the EU Machinery Regulation 2023/1230 — the safety ratings, the part numbers, the wiring accessories, and the mounting brackets are all current. What is changing is the documentation, the firmware traceability, and the cybersecurity risk assessment that wraps around each cell. For panel shops shipping machines into the EU in 2026 and 2027, the practical work is not the F3SG quote; it is the per-machine build sheet, the IO-Link diagnostic wiring reservation, and the alignment between the safety controller's cybersecurity configuration and the machine's technical file. Independent industrial automation distributors can supply the F3SG SKUs with the documentation and the firmware version control to support that work. As of August 2026, the F3SG family is a stable, well-stocked platform for the EU Machinery Regulation deadline, and SICK's Johor manufacturing footprint plus the Aeva 4D LiDAR integration both reinforce that position through 2027.