Technical Specifications

Main Features and Advantages

Rugged brass nickel-plated construction.​ The Pepperl+Fuchs 3RG4143-6AD00​ moves away from the zinc-alloy or plastic bodies found on entry-level M18 sensors and uses a machined brass nickel-plated thread with molded PVC cable transition. This pays off in washdown and mildly corrosive environments—food & beverage CIP zones, automotive weld shops with spatter, and outdoor material-handling skids—where plain steel threads would pit within a season. The nickel plate adds a sacrificial corrosion barrier while keeping the thread dimensional stability needed for repeatable torque at 5 N·m max.

High-speed 2000 Hz switching envelope.​ Many general-purpose M18 inductives cap out at 500–800 Hz, but the Pepperl+Fuchs 3RG4143-6AD00​ pushes beyond 2000 Hz thanks to optimized oscillator coil geometry and a fast-recovery output stage. On high-speed bottling lines where targets (e.g., aluminum caps, steel crowns) pass at 1–2 m/s, the sensor maintains clean rising edges without chatter. The <±0.5% repeat accuracy further ensures that position-gated events—such as reject-air timing on a diverter—stay consistent shift after shift.

Triple electrical protection built-in.​ The Pepperl+Fuchs 3RG4143-6AD00​ integrates short-circuit protection, overload protection, and reverse-polarity protection on the 10–30 V DC input rail. Reverse-polarity is the silent killer during commissioning—a tech swapping a sinking-type sensor for this sourcing-type can momentarily flip +24 V and 0 V; the internal diode bridge on the Pepperl+Fuchs 3RG4143-6AD00​ clamps and survives rather than letting the output stage release magic smoke. Short-circuit protection also means a pinched cable or mis-wired PLC input card won’t take the sensor down—the device self-limits and recovers once the fault clears.

Installation flexibility—flush or non-flush.​ The M18×1 thread and front-face sensing geometry let the Pepperl+Fuchs 3RG4143-6AD00​ be mounted flush into a metal bracket (reducing Sn per P+F’s reduction curve, typically to ~3.2 mm) or proud (non-flush) for the full 4 mm. This duality matters on retrofit jobs where a legacy drilled hole already exists: if the surrounding bracket is steel and flush mount is forced, the engineer knows to compensate in the PLC threshold; if the bracket is aluminum or plastic, non-flush gives full range. The 90 % bracket interchangeability with legacy 3RG4000-series M18 parts also keeps spare-holding costs down for maintenance teams managing mixed-age lines.

Legacy stability with upgrade awareness.​ While the Pepperl+Fuchs 3RG4143-6AD00​ is flagged end-of-sale by the OEM, its electrical and mechanical footprint is carried forward into the 3RG6 refresh with IO-Link options. For sites not yet ready to adopt IO-Link (requiring master ports, new PLC function blocks, and potential recertification in pharma/F&B), the Pepperl+Fuchs 3RG4143-6AD00​ remains the safest “like-for-like” swap—same M18 thread pitch, same 2 m PVC exit, same PNP NO polarity, same 4 mm Sn—so a maintenance swap takes five minutes with a wrench and a zip tie, not five days of validation.

Application Field

The Pepperl+Fuchs 3RG4143-6AD00​ is deployed wherever a rugged, non-contact metal-presence check is needed on a budget-conscious M18 envelope. The primary battleground is automotive body-shop and general-assembly conveyors: detecting cylinder end-position on clamp fixtures, confirming part-present on pallet nests before a robot pick, and counting stamped brackets on accumulation roller tables. In these cells, the Pepperl+Fuchs 3RG4143-6AD00​ sees weld spatter, hydraulic mist, and frequent hose-down—conditions where the IP67 brass-nickel body outperforms painted-steel competitors that show thread corrosion within 12–18 months.

Packaging machinery is the second major lane. The Pepperl+Fuchs 3RG4143-6AD00​ is commonly specified on flighted bucket elevators and rotary fillers to detect metal collapse-guards, star-wheel indexing pins, or reject-gate open/closed positions. The 2000 Hz ceiling lets it track a 600 bpm bottle line without dropped counts, while the PNP NO output drops directly onto 24 V PLC input cards without interposing relays. Food & beverage auxiliary stations (non-hygienic, but washdown-adjacent—think palletizers downstream of filler) also use the Pepperl+Fuchs 3RG4143-6AD00​ because the nickel-plated brass survives the occasional caustic splash better than a plain zinc die-cast M18 would.

Material handling rounds out the picture. The Pepperl+Fuchs 3RG4143-6AD00​ appears on roller-conveyor zone accumulators, overhead chain trolleys, and AS/RS transfer cars, where it detects trolley-mounted steel targets or cam lobes on rotating drive shafts. The –25 °C low end also qualifies it for chilled warehousing and unheated dock areas where a 0 °C-rated sensor would drift. Across all these use cases, the Pepperl+Fuchs 3RG4143-6AD00​ solves the recurring problem of “sensor death by environment”—corrosion at the thread, water ingress at the cable mold, or output-stage burnout from a reversed 24 V feed—issues that cheaper M18 imports tend to manifest inside 6–12 months.

Related Products

• 3RG4143-6AB00​ – Same M18 PNP NO 4 mm platform, alternate cable length/variant within the 3RG4143 sub-family; cross-check lead length before swap.
• 3RG4123-6AD00​ – 3RG4 M12 sibling, PNP NO, ~2 mm Sn, for space-constrained cylinders where M18 is oversized.
• 3RG4142-6AD00​ – 3RG4 M18 PNP NO variant with different Sn (typically 8 mm class), for applications needing longer standoff than the 3RG4143-6AD00.
• 3RG6012-6AD00​ – 3RG6 series successor direction (IO-Link capable M12/M18), drop-in mechanical replacement path when the site is ready to migrate from the 3RG4143-6AD00.
• 3RG4012-6KL00​ – M18 NPN NO variant of the same 3RG4 family, for Japanese-architecture PLC lines that sink current (vs. the PNP sourcing of the 3RG4143-6AD00).
• 3RG4143-6AA00​ – Connector-version (M12 plug) of the same sensing spec, replacing the 2 m molded cable of the 3RG4143-6AD00​ when quick-disconnect dress packs are preferred.
• NBB5-18GM50-E2-V1​ – Pepperl+Fuchs NBB (high-end) M18 variant, stainless steel 1.4404, IO-Link optional, used when the 3RG4143-6AD00​ brass-nickel grade isn’t enough for aggressive washdown.
• 3RG4000-0AK00​ – Legacy 3RG4 M18 ancestor; the 3RG4143-6AD00​ is the direct functional upgrade with improved EMC and wider voltage headroom.