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Cylindrical chrome-plated brass sensor with M18 thread and M12 connector

Turck

Turck BI5-M18-RN6X-H1143 inductive sensor NPN electrician tool

SKU CH-PZEA-99GDZ MPN BI5-M18-RN6X-H1143

Inductive proximity sensor with M18 threaded barrel, 5 mm switching distance, NPN normally-closed output, and M12 connector for 10–30 VDC systems

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Threaded M18 barrel enables flush mounting in tight spaces
  • Chrome-plated brass housing resists corrosion in industrial environments
  • 10–30 VDC supply range suits common control-voltage systems
  • NPN normally-closed output simplifies fail-safe wiring logic
  • M12 male connector allows quick, tool-free cable attachment

M18 inductive sensor NPN

The Turck BI5-M18-RN6X-H1143 is a flush-mountable proximity switch with a 5 mm rated switching distance. Its chrome-plated brass barrel carries an M12 × 1 male connector and delivers an NC contact with NPN output. Designed for DC control circuits between 10 and 30 VDC, it suits automation engineers who need reliable metal detection in a compact threaded housing.

Industrial maintenance and OEM integration

Maintenance teams fitting new sensors to existing M18 mounting points will find the connector pin-out and thread form a direct match. Builders who require a normally-open function, PNP switching, or a longer sensing range should look at alternative models because this unit is fixed as NC and NPN with a 5 mm reach.

5 mm switching distance headroom

The sensor reliably detects ferrous targets up to 5 mm away when mounted flush in metal, giving enough margin for normal vibration and target-position tolerance. Beyond that distance the output will not switch, so applications needing greater stand-off or non-ferrous detection will need a different sensing principle.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $50.99
Cheaper than about 78% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTURCK
Model nameBI5-M18-RN6X-H1143 4614603
Product typeTest Equipment
In the box
Number of items1 pack

Questions about this item

What voltage supply does the BI5-M18-RN6X-H1143 sensor require to operate?

It operates on a DC supply between 10 and 30 VDC, so any power source within that range will work.

Can I mount this M18 × 1 sensor in the same threaded holes as my older M12 sensors?

No, the M18 × 1 thread is larger than M12; you will need a new mounting hole or an adapter sleeve.

How do I confirm the NPN output is switching correctly after wiring the M12 connector?

Measure the load wire with a multimeter; it should pull low when metal enters the 5 mm sensing field and release when the target moves away.

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