OverviewThe IFM IFS204 (IFB3004BBPKG/US‑104) is a compact inductive proximity sensor designed for applications where space is restricted. Featuring a particularly short M12 housing (only 45 mm total length, 29 mm threaded length), this sensor provides reliable non‑contact detection of metal objects up to 4mm in flush‑mountable configuration. The robust stainless steel housing (316L/1.4404) with IP65, IP67, and IP68 protection ratings ensures reliable operation in harsh industrial environments, including dust, temporary immersion, and high‑pressure washdown. The sensor delivers a very high switching frequency of 800 Hz, making it suitable for high‑speed automation processes. The long sensing range minimizes the risk of physical damage to the sensor, while the clearly visible 4‑LED status indication provides instant feedback on switching state. With a PBT sensing face and gold‑plated M12 connector contacts, the IFS204 is built for long‑term reliability in demanding applications. Key Features Original brand new, within warranty period – Factory‑sealed, genuine IFM component with full manufacturer warranty. 100% Satisfaction Guarantee – Risk‑free purchase; if you are not completely satisfied, we will replace or refund. Particularly short housing for space‑restricted applications – Compact M12 design with total length of 45 mm and threaded length of only 29 mm, ideal for installation in tight machine frames, grippers, and confined spaces where standard sensors cannot fit. Long sensing range minimizes physical damage – Flush mountable with a 4mm sensing range (real Sr = 4 mm ±10%, operating distance 0…3.24 mm) allows the sensor to be positioned farther from the target, reducing the risk of collision and mechanical damage. Very high switching frequency (800 Hz) – Fast 800 Hz switching frequency enables reliable detection of rapidly moving parts in high‑speed automation applications such as pick‑and‑place, counting, and rotational speed monitoring. Robust stainless steel housing for harsh environments – Constructed from stainless steel (316L/1.4404) with a PBT sensing face, rated IP65, IP67, and IP68 for dust‑tight protection, temporary immersion, and resistance to high‑pressure washdown. Clearly visible indication of switching status – Four bright yellow LED indicators provide 360° visibility of the switching state, simplifying commissioning and troubleshooting even from a distance. PNP normally open output with comprehensive protection – DC PNP, normally open output with 100 mA continuous current rating, and built‑in short‑circuit (pulsed), overload, and reverse polarity protection. Gold‑plated M12 connector contacts – Gold‑plated contacts ensure corrosion‑free signal transmission for long‑term reliability in washdown environments. Wide operating temperature range – Operates reliably from -25°C to 80°C, suitable for a broad range of industrial applications. High reliability with MTTF of 1134 years – Exceptional mean time to failure ensures long‑term dependable operation, minimizing unplanned downtime and maintenance costs. Technical Specifications Parameter Value Manufacturer IFM Electronic Type / Part No. IFS204 / IFB3004BBPKG/US‑104 Product type Inductive proximity sensor Electrical design DC PNP Output function Normally open (NO) Sensing range 4 mm (flush mountable) Real sensing range (Sr) 4 mm ±10% Operating distance 0…3.24 mm Switching frequency 800 Hz Hysteresis 1…20% of Sr Switch point drift –10…+10% of Sr Correction factors Steel: 1 / Stainless steel: 0.7 / Brass: 0.5 / Aluminum: 0.4 / Copper: 0.3 Operating voltage 10…30 V DC Current consumption < 10 mA Max. voltage drop (output) 2.5 V Continuous current rating 100 mA Short‑circuit protection Yes (pulsed type) Overload protection Yes Reverse polarity protection Yes Protection class II Enclosure rating IP65; IP67; IP68 Housing material Stainless steel (316L/1.4404) Sensing face material PBT LED window material PEI Lock nuts material Stainless steel (316L/1.4404) Tightening torque 15 Nm Dimensions (total length) 45 mm Threaded length 29 mm Thread size M12 × 1 Ambient temperature -25…80 °C Storage temperature -25…80 °C EMC compliance EN 61000-4-2 ESD (4 kV CD / 8 kV AD), EN 61000-4-3 (10 V/m), EN 61000-4-4 (2 kV Burst), EN 61000-4-6 (10 V HF conducted), EN 55011 Class B MTTF 1134 years UL approval UL File No. E174191, Enclosure Type 1 Certifications CE, cULus, EAC, KC RoHS compliant Yes Country of origin Romania (RO) Applications Space‑restricted installations: Detection in robotic grippers, pick‑and‑place systems, pneumatic cylinders, and compact assembly stations. High‑speed automation: Counting, position feedback, and speed monitoring on conveyor systems, packaging machinery, and sorting equipment (800 Hz switching frequency). Harsh industrial environments: Machine tools, metalworking, automotive assembly lines, and food processing requiring IP68 washdown resistance. Long‑distance detection to avoid damage: Positioning sensors farther from moving parts in material handling, palletizers, and heavy machinery. Mobile equipment and outdoor use: Rugged stainless steel housing and wide temperature range support reliable operation in construction, agricultural, and logistics equipment. Package Includes 1 × IFM IFS204 inductive sensor (IFB3004BBPKG/US‑104) 2 × lock nuts (stainless steel 316L/1.4404) Instruction manual
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