FMM6/CN-3H IMO Inductive Proximity Switch M12 Shielded, M12 Plug

Why Choose the IMO FMM6/CN-3H Inductive Proximity Sensor?

The IMO FMM6/CN-3H is a robust M12 full-metal inductive proximity sensor designed for reliable non-contact detection of metallic objects in industrial automation, machinery and process equipment. Its full-metal construction uses AISI 316L stainless steel for both the housing and active sensing face, providing excellent mechanical durability for demanding installations.

The FMM6/CN-3H provides a nominal sensing distance of 3 mm with an operating distance of 0–2.43 mm. Its shielded, flush-mountable M12 design allows installation directly into suitable metal surroundings, making it particularly useful for compact position sensing and component detection applications.

Operating from a 10–30 V DC supply, the sensor provides an NPN normally closed (NC) output with a load capacity of up to 200 mA. A 200 Hz switching frequency, yellow output-status LED, M12 plug connection and IP67 / IP68 / IP69K protection make it suitable for demanding industrial sensing applications.

Key Advantages

• Robust M12 full-metal inductive proximity sensor for industrial automation.
• 3 mm nominal sensing distance for reliable metallic target detection.
• NPN normally closed output for compatible PLC and machine control inputs.
• Shielded design allows flush mounting into suitable surrounding metal.
• AISI 316L stainless steel housing and sensing face provide excellent mechanical durability.
• 200 Hz switching frequency supports responsive machine sensing.
• IP67, IP68 and IP69K protection supports use in demanding industrial environments.
• M12 plug connection simplifies installation, maintenance and sensor replacement.

Key Features

• M12 × 1 full-metal cylindrical construction.
• Shielded / flush-mountable installation.
• 3 mm nominal sensing distance.
• 0–2.43 mm operating distance.
• NPN normally closed (NC) output.
• 10–30 V DC operating voltage.
• Maximum load current of 200 mA.
• 200 Hz switching frequency.
• Yellow LED output-state indication.
• M12 plug connection.
• AISI 316L stainless steel housing and active sensing face.
• Short-circuit protection with automatic reset.
• Reverse-polarity and inductive-load protection.
• IP67 / IP68 / IP69K protection.

Reliable Non-Contact Metal Detection

Inductive proximity sensors such as the IMO FMM6/CN-3H detect metallic targets without requiring physical contact. An electromagnetic field is generated at the active sensing face, and the introduction of a suitable metal target changes this field, causing the electronic NPN output to switch. This operating principle eliminates mechanical contact with the target and reduces wear during repetitive machine cycles.

The FMM6/CN-3H combines a 3 mm nominal sensing distance with compact M12 full-metal construction and a normally closed NPN output. Its shielded design supports flush mounting, while the stainless steel construction and high ingress protection make it suitable for machinery where durability, contamination resistance and dependable sensing are important.

Typical Applications

• Metal component presence detection.
• Machine position and end-of-travel sensing.
• Industrial automation and assembly equipment.
• Conveyor and material handling systems.
• Production and packaging machinery.
• Washdown and demanding industrial environments.
• Position monitoring of metallic machine components.
• OEM machinery and automated production systems.