Leuze IS 208MM/4NC-2N5-S8.3 Proximity Sensor
The Leuze IS 208MM/4NC-2N5-S8.3 Proximity Sensor (Part No: 50129347 ) offers a 8 mm diameter, M8 thread size, PNP NC (normally closed) output, M8 Connector, 3 -pin connection. Manufactured by Leuze under the Leuze Proximity Sensor category, this model belongs to the 203 & 204 Series.
| Brand | Leuze |
| Product Type | Proximity Sensor |
| Product | IS 208MM/4NC-2N5-S8.3 |
Leuze IS 208MM/4NC-2N5-S8.3 Proximity Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Diameter | 8 mm |
| Thread size | M8 |
| Type of installation | Non-embedded |
| Supply voltage UB | 10 ... 30 V, DC |
| Typ. operating range limit Sn | 2.5mm |
| Switching outputs | PNP |
| Switching principle | NC (normally closed) |
| Switching frequency, max. | 5,000 Hz |
| Connection type | M8 Connector, 3 -pin |
| Degree of protection | IP 67 |
| Housing | Stainless steel |
| Active surface | Plastic |
Built with a sturdy stainless steel M8 housing, the Leuze IS 208MM/4NC-2N5-S8.3 delivers exceptional reliability even in harsh conditions. It features a non-embedded installation with a sensing diameter of 8 mm and operates efficiently within a wide supply voltage range of 10–30 V DC. The typical sensing range is adjustable between 1.5 mm and 40 mm, with an optimal factory-calibrated range around 2.5 mm, making it suitable for detecting metal targets at close proximity.
This proximity sensor supports a normally closed (NC) output with PNP switching and delivers a swift switching frequency of up to 5,000 Hz, ensuring high-speed performance in dynamic environments. With an M8 connector interface and robust IP67-rated protection, the sensor is built to withstand dust, water, and vibration. Its active surface is crafted from resilient plastic to minimize wear over time, and its operating stability makes it a trusted choice across automotive, packaging, and machine tool industries. These technical attributes underscore why the Leuze IS 208MM/4NC-2N5-S8.3 proximity sensor is a top-tier solution for demanding automation systems.
The Leuze proximity sensor IS 208MM/4NC-2N5-S8.3 is ideal for position sensing in automated machines, detecting metal parts on moving conveyors, or confirming part presence in tight assembly stations. Its high switching frequency ensures precise detection even when components move rapidly. The sensor’s compact M8 threaded design allows engineers to integrate it easily into space-constrained control panels or actuator housings without mechanical interference.
Its rugged IP67-rated body makes it suitable for use in environments exposed to oil, coolant splashes, or dust, such as CNC machining zones, food-grade conveyors (with protective sleeves), or robotics joints. The non-embedded design also reduces the risk of false triggering due to surrounding metal surfaces. With its reliable NC output and stable sensing at 2.5 mm, this proximity sensor ensures uninterrupted machine operation — even in repetitive cycles or variable ambient conditions.
Whether you're designing safety interlocks, monitoring process stages, or automating part verification systems, the Leuze IS 208MM/4NC-2N5-S8.3 proximity sensor brings consistency, speed, and confidence to your application. Trusted globally in factory automation, it offers the perfect balance of precision, durability, and response time.

