Leuze RKU 420/2NC.2-S8 Ultrasonic Sensor
Leuze RKU 420/2NC.2-S8 Ultrasonic Sensor provides 0–0.4 m operating range, 290 kHz ultrasonic frequency, and NPN transistor output for detection tasks. This Leuze Ultrasonic Sensor features 20 Hz switching frequency, cubic 20 x 42 x 15 mm housing, M8 connector, 12–30 V DC supply, 25 ms response time, high ≥(UB-2V) and low ≤2 V switching voltage, 4-pin connection with Signal IN and Signal OUT, plastic housing, -10 to 60 °C operating temperature, -40 to 85 °C storage, IP67 protection, and belongs to the 420B series.
| Brand | Leuze |
| Product Type | Ultrasonic Sensor |
| Product | RKU 420/2NC.2-S8 |
Leuze RKU 420/2NC.2-S8 Ultrasonic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cubic |
| Thread Size | M8 |
| Dimension | 20 mm x 42 mm x 15 mm |
| Operating range | 0 ... 0.4 m |
| Operating principle | Reflection principle |
| Ultrasonic frequency | 290 kHz |
| Opening angle | - |
| Adjustment range | - |
| Resolution | - |
| Supply voltage UB | 12 ... 30 V, DC |
| Number of Connections | - |
| Switching voltage | high: ≥(UB-2V) low: ≤ 2 V |
| Switching output 1 | Transistor, NPN |
| Switching frequency | 20 Hz |
| Interface Type | - |
| Response time | 25 ms |
| Connection 1 Function | Signal IN Signal OUT Voltage supply |
| Type of connection | Connector |
| No. of Pin | 4 -pin |
| Housing material | Plastic |
| Ambient temperature, operation | -10 ... 60 °C |
| Ambient temperature, storage | -40 ... 85 °C |
| Degree of protection | IP 67 |
The RKU 420/2NC.2-S8 defined as RKU 420/2NC.2-S8 Leuze Signal In Signal Out Ultrasonic Sensors operates with 0–0.4 m operating range using 290 kHz ultrasonic frequency. It delivers NPN transistor output with 12–30 V DC supply and 20 Hz switching frequency. This model is part of the 318B Series and applies the reflection principle for industrial automation sensing.
In packaging systems, compact conveyors, and assembly machinery, the sensor enables stable short-distance object detection. The cubic housing and M8 connector support integration into space-constrained equipment. With 25 ms response time and IP67 protection, it maintains reliable switching performance in dust-prone and industrial operating environments.
The RKU 420/2NC.2-S8 from Leuze supports Signal IN and Signal OUT wiring through a 4-pin connector, ensuring consistent output behavior. As a 420B Series ultrasonic sensor, Leuze ensures dependable reflection-based detection suitable for industrial automation applications across manufacturing setups in India.
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