Turck BI5-M18-AP6X-H1141 Inductive Proximity Sensor
Overview
The Turck BI5-M18-AP6X-H1141 is a flush-mount inductive proximity sensor built into a rugged, chrome-plated brass M18 x 1 threaded barrel, engineered to detect metal targets reliably in demanding industrial environments. Rated for a 5 mm sensing distance, this Turck inductive sensor operates on a 10–30 VDC three-wire circuit with a PNP normally-open output, switching through an M12 x 1 male connector for fast, tool-free field wiring. Its IP67-rated housing, wide -25°C to +70°C operating range, and cyclic short-circuit protection make it a dependable, low-maintenance choice for automation designers who need consistent, contactless position and presence detection.
Working closely with plant engineers in the region, Seven Star LLC proudly supplies the Turck BI5-M18-AP6X-H1141 inductive sensor to industrial customers across Oman and the wider GCC. Automation integrators and maintenance teams in Muscat, Sohar, and Salalah rely on genuine Turck sensors, backed by manufacturer datasheets, correct accessory cross-referencing, and dependable regional lead times that keep production lines and material-handling systems running without the risk of counterfeit or mismatched components.
Operating Principle
The BI5-M18-AP6X-H1141 detects metal objects contactlessly using a high-frequency electromagnetic field generated by an RLC circuit built around a ferrite coil in the sensor face. When a ferrous or non-ferrous metal target enters the field within the rated 5 mm switching distance, eddy currents induced in the target dampen the oscillation amplitude of the coil circuit; the sensor’s internal electronics detect this damping and switch the PNP output from open to closed. Because the sensing action depends entirely on electromagnetic coupling rather than physical contact, the Turck BI5-M18-AP6X-H1141 wears out only in the same way as any solid-state device — there is no mechanical actuator, spring, or moving contact to fatigue over millions of switching cycles.
Different metals couple with the field at different efficiencies, which is why Turck publishes correction factors for the BI5-M18-AP6X-H1141: mild steel (St37) is the reference target at a correction factor of 1, while aluminium reduces effective range to roughly 0.3 of rated distance, stainless steel to about 0.7, and brass to around 0.4. This behavior lets instrumentation engineers predict actual detection distance for a given target material rather than relying only on the nominal 5 mm rating, which is critical when specifying the sensor for targets other than plain carbon steel.
Engineering Design of the Turck BI5-M18-AP6X-H1141
Mechanically, the Turck BI5-M18-AP6X-H1141 is built around a chrome-plated brass M18 x 1 threaded barrel roughly 52 mm in length, with an active sensing face made from PA12-GF30 glass-filled plastic to resist abrasion and impact. The full metal housing allows the sensor to withstand a maximum tightening torque of 25 Nm during mounting into machine frames, brackets, or quick-mount adapters such as Turck’s BST-18B and QM-18 accessories, while the threaded design permits fine adjustment of the sensing gap after installation without needing to reposition the whole bracket.
Electrically, the sensor connects through a keyed M12 x 1 male connector, allowing field technicians to attach a straight or right-angle cordset without opening the housing or making permanent wire splices — a significant advantage during machine commissioning or when swapping a failed sensor on a running line. A yellow LED integrated into the housing gives an immediate visual indication of switching state, and the sensor carries wire-break and reverse-polarity protection along with cyclic short-circuit protection, reducing the risk of damage from field wiring mistakes during installation or maintenance.
Key Features
The BI5-M18-AP6X-H1141 combines proven inductive sensing technology with a rugged mechanical design suited to heavy industrial duty:
- Rated 5 mm sensing distance with flush mounting conditions for close-clearance installation in machine frames.
- Chrome-plated brass M18 x 1 threaded barrel provides mechanical durability and corrosion resistance in harsh environments.
- PNP normally-open output on a 10–30 VDC three-wire circuit connects directly to standard PLC digital inputs.
- IP67 protection rating allows reliable operation in washdown, dusty, or humid industrial conditions.
- M12 x 1 male connector enables fast, tool-free cordset connection and sensor replacement.
- Cyclic short-circuit protection plus wire-break and reverse-polarity protection guard against common field wiring errors.
- Wide -25°C to +70°C ambient temperature range suits both indoor and semi-exposed industrial installations.
- Yellow switching-state LED gives technicians immediate visual confirmation during commissioning and troubleshooting.
Industrial Applications
The Turck BI5-M18-AP6X-H1141 is widely specified for metal-object detection tasks on conveyor and material-handling systems, end-of-travel and position confirmation on cylinders and linear slides, part-presence verification on assembly and packaging machinery, and machine-guarding interlocks where a rugged, wear-free sensor is preferred over a mechanical limit switch. Its M18 threaded barrel and standard M12 connector make it a common drop-in replacement across automotive, food and beverage, and general manufacturing equipment already built around the same mounting footprint.
With fast quotation turnaround and technical support, Seven Star LLC distributes the BI5-M18-AP6X-H1141 to factory automation integrators, machine builders, and process facilities throughout Oman and the GCC, including operations in the Sohar and Salalah industrial and free zones where dependable sensing hardware supports continuous production. Customers gain access to Turck documentation, correct connector and cable cross-referencing, and responsive local technical support.
Technical Specifications
The table below summarizes the core specifications of the Turck BI5-M18-AP6X-H1141 inductive sensor.
| Parameter | Specification |
|---|---|
| Model | Turck BI5-M18-AP6X-H1141 (ID 46145) |
| Rated Sensing Distance | 5 mm |
| Mounting Conditions | Flush |
| Output Function | 3-wire, NO contact, PNP |
| Operating Voltage | 10–30 VDC |
| Rated Operating Current | ≤200 mA |
| Switching Frequency | 0.5 kHz |
| Housing / Thread | Chrome-plated brass, M18 x 1 threaded barrel |
| Active Area Material | PA12-GF30 plastic |
| Electrical Connection | M12 x 1 male connector |
| Protection Class | IP67 |
| Ambient Temperature | -25°C to +70°C |
| Correction Factors | St37 = 1, Al = 0.3, stainless steel = 0.7, brass = 0.4 |
Request a Quote for Turck BI5-M18-AP6X-H1141 Inductive Proximity Sensor
To request a formal quotation for the Turck BI5-M18-AP6X-H1141 inductive sensor, download the full technical datasheet, or confirm current availability and lead time, contact the Seven Star LLC instrumentation and automation division. With engineering support in Muscat, Seven Star LLC supplies inductive sensors, connectivity, and interface technology with manufacturer documentation and dependable local support for facilities across Muscat, Sohar, and Salalah.
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- Datasheet Turck BI5-M18-AP6X-H1141 Inductive Proximity Sensor Datasheet Download
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In BI5-M18-AP6X-H1141, BI is a flush-mountable inductive sensor, 5 is the rated switching distance in millimeters and M18 is the threaded barrel. AP6 is a three-wire DC output, PNP normally open, X marks the LED and H1141 is the M12 connector. The CMVT-QR20 is a small rectangular sensor that measures vibration and temperature on motors, pumps and fans for condition monitoring.Ordering Turck sensors: what we need
Send the full type code and the ID number printed on the sensor or its bag label. If the label is lost, give the housing size, flush or non-flush mounting, output type, supply voltage and connection.Browse Turck products by category: Vibration, Sensors & Transmitters.
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