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FMK6/BN-3H IMO Inductive Proximity Switch M18 Shielded, M12 Plug
IMO FMK6/BN-3H is a shielded M18 full-metal inductive proximity sensor with a 5 mm sensing distance, 10–30 V DC supply, complementary NPN NO and NC outputs, M12 connection and IP68/IP69K stainless steel construction.
£112.60
Why Choose the IMO FMK6/BN-3H Inductive Proximity Sensor?
The IMO FMK6/BN-3H is a robust M18 full-metal inductive proximity sensor designed for reliable non-contact detection of metallic objects in industrial automation, machinery and process equipment. As part of the IMO FM full-metal inductive sensor series, it features an AISI 316L stainless steel housing and active sensing face for demanding industrial environments.
This sensor provides an enhanced nominal sensing distance of 5 mm in a short M18 cylindrical format. Its shielded construction allows flush mounting into suitable metal surroundings, making it ideal for position sensing, component detection and machine monitoring where a compact and mechanically robust sensor is required.
The FMK6/BN-3H operates from a 10–30 V DC supply and provides complementary NPN normally open and normally closed outputs. With a maximum load current of 200 mA, 100 Hz switching frequency, M12 plug connection and IP68 / IP69K protection, it is well suited to demanding industrial automation applications.
Key Advantages
- Robust M18 full-metal inductive proximity sensor for industrial automation.
- 5 mm enhanced nominal sensing distance for reliable metallic target detection.
- NPN NO + NC complementary outputs provide flexible control integration.
- Shielded design supports flush mounting into suitable surrounding metal.
- Full-metal AISI 316L stainless steel housing and sensing face.
- IP68 and IP69K protection for demanding industrial environments.
- M12 plug connection simplifies installation and sensor replacement.
Key Features
- IMO FM full-metal inductive sensor series.
- M18 × 1 short cylindrical barrel.
- Shielded / flush-mountable installation.
- 5 mm nominal sensing distance.
- 0–4.05 mm operating distance.
- NPN normally open + normally closed outputs.
- 10–30 V DC operating voltage.
- Maximum load current of 200 mA.
- 100 Hz switching frequency.
- Yellow LED output-state indication.
- M12 plug connection.
- AISI 316L stainless steel housing and active head.
- Short-circuit, reverse-polarity and inductive-load protection.
- IP68 / IP69K environmental protection.
Reliable Non-Contact Metal Detection
Inductive proximity sensors such as the IMO FMK6/BN-3H detect metallic targets without requiring physical contact. An electromagnetic field is generated at the active face, and the presence of a suitable metallic object changes this field, causing the electronic outputs to switch state.
The FMK6/BN-3H combines an enhanced 5 mm sensing distance with full-metal AISI 316L stainless steel construction and complementary NPN outputs. Its shielded M18 design supports flush installation, while the high environmental protection rating makes it suitable for machinery exposed to moisture, contamination and demanding cleaning regimes.
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.
Technical Specifications
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| Supply Voltage | 12 V DC, 24 V DC | |
|---|---|---|
| Coil / Supply Voltage | 10–30 V DC | |
| Mounting Condition | Flush | |
| IP Rating | IP68, IP69K | |
| Output Type | NPN | |
| Sensing Principle | Inductive | |
| Housing Size | M18 | |
| Sensing Distance | 5 mm | |
| Output Function | NO | |
| Connection | M12 connector | |
| Manufacturer | IMO Precision Controls | |
| Series | FM Full-Metal Inductive Sensors | |
| Model | FMK6/BN-3H | |
| Product type | Inductive proximity sensor | |
| Sensing principle | Inductive | |
| Barrel size | M18 × 1 | |
| Body length | 49 mm | |
| Installation | Shielded / flush mounting | |
| Nominal sensing distance | 5 mm | |
| Operating distance | 0–4.05 mm | |
| Standard target | 18 × 18 mm FE360 steel | |
| Output Type | NPN | |
| Output function | Normally open + normally closed | |
| Operating voltage | 10–30 V DC | |
| No-load supply current | ≤10 mA | |
| Maximum load current | 200 mA | |
| Leakage current | ≤10 µA | |
| Output voltage drop | ≤1.5 V at 200 mA | |
| Switching frequency | 100 Hz | |
| Indicator | Yellow LED output-state indicator | |
| Connection | M12 plug | |
| Housing material | AISI 316L stainless steel | |
| Active head material | AISI 316L stainless steel | |
| Operating temperature | -25 to +70 °C | |
| Protection rating | IP68 / IP69K | |
| Impact resistance | IK08 | |
| Tightening torque | 25 Nm | |
| Weight | 55 g | |
| Short-circuit protection | Yes | |
| Reverse-polarity protection | Yes | |
| Inductive-load protection | Yes | |
| Approvals | CE, cULus | |
| EMC standard | IEC 60947-5-2 | |
| HS Code | 8536508000 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the IMO FMK6/BN-3H used for?
The FMK6/BN-3H is an inductive proximity sensor used for non-contact detection of metallic objects in machinery, automation and industrial position-sensing applications.
What is the sensing distance of the FMK6/BN-3H?
The IMO FMK6/BN-3H provides a nominal sensing distance of 5 mm, with an operating distance of up to approximately 4.05 mm.
What outputs does the IMO FMK6/BN-3H provide?
The FMK6/BN-3H provides complementary NPN normally open and normally closed outputs, allowing flexible integration with compatible PLC and machine control inputs.
Can the FMK6/BN-3H be mounted flush in metal?
Yes. The FMK6/BN-3H is a shielded inductive sensor designed for flush mounting into suitable metal structures.
Is the IMO FMK6/BN-3H suitable for demanding industrial environments?
Yes. The sensor features AISI 316L stainless steel construction together with IP68 and IP69K protection, making it suitable for demanding industrial and washdown applications.
Reliable Industrial Sensing from IMO
IMO FM full-metal inductive proximity sensors provide durable non-contact metal detection for industrial automation and machinery, combining stainless steel construction, flexible electronic outputs and high environmental protection.
