
The SIN8-M18N-V2 is a cylindrical inductive proximity sensor from ABB (Jokab) designed to detect metal objects without physical contact. It is an M18 threaded sensor, non-flush (non-embeddable) mount, with an 8 mm nominal sensing distance. This sensor operates on 10–30 V DC supply and comes in various output configurations: for instance, the "-NK" variant is a 2-wire DC, normally-open sensor that can be wired in series with a load (suitable for direct connection in safety circuits or PLC inputs). Other versions like "-PO" or "-PK" provide 3-wire outputs (PNP or NPN, NO or NC) to interface with standard control systems. The SIN8-M18N-V2 features a stainless steel sensing face and brass nickel-plated body for durability. It has LED indication for target detection and output status. With a switching frequency up to several hundred Hz, it can reliably track moving metal targets. The sensor's design meets IP67 environmental protection, allowing use in dusty and wet conditions. Common applications include position sensing on actuators, detecting machine parts, or presence detection of metal workpieces. The non-flush (extended) mount design and "N" style indicate it must be mounted with a clearance (sensing face protruding) to achieve the full 8 mm range. It offers high repeatability and short-circuit protection on the output transistor. The SIN8-M18N-V2 sensor family is part of ABB's comprehensive range of industrial proximity switches, known for their reliability and ease of installation (standard M18 barrel size fits many brackets and clamps).
| Sensor Type | Inductive proximity, non-flush (M18 threaded barrel) |
| Sensing Distance | 8 mm rated (non-embeddable target approach) |
| Output Configuration | Example -NK: 2-wire DC, Normally Open (NO) output; Other suffixes: -PO (PNP NO), -PK (PNP NC), -NO (NPN NO), -NK (NPN NC or 2-wire NC depending on code) |
| Supply Voltage | 10–30 V DC (ripple ≤ 10%) |
| Output Current | Up to ~200 mA switching current (2-wire voltage drop < 5 V at 200 mA) |
| Switching Frequency | ~0.5 kHz (2-wire) up to 1 kHz (3-wire types) – depending on target size |
| Indicators | Yellow LED for output status (and target detection) |
| Housing Material | Nickel-plated brass body; sensing face made of durable plastic or stainless steel flush disk |
| Protection | Short-circuit and overload protected (for 3-wire types); reverse polarity protected; IP67 rated |
| Connection | Typically 2 m PVC cable or M12 connector (depending on version) |
| Ambient Temp | –25 °C to +70 °C (operational) |
| Standards | IEC 60947-5-2 compliance; CE marked |





