Riko – RN04 & RN05

Rectangular Inductive Proximity Sensor

Brand : Riko

The RiKO RN04 and RN05 Series are rectangular inductive proximity sensors designed for non contact detection of metallic objects in industrial automation systems. These sensors feature a compact rectangular housing with dual LED indicators, allowing users to easily monitor operation status during installation and use. The inclusion of an oval mounting hole design enables flexible positioning and quick adjustment, making them suitable for machinery, conveyors, and positioning systems.

Both RN04 and RN05 models provide stable sensing performance with built in surge suppression and overload protection, ensuring reliable operation in electrically noisy environments. They support multiple output configurations including NPN and PNP with normally open and normally closed functions, allowing one sensor to cover multiple application requirements. With IP64 to IP67 protection, the series is suitable for use in demanding industrial conditions.

For more info, download our full technical spec.

Specifications

Specification	RN04 Series	RN05 Series
Series	RN04‑N / RN04‑P / RN04‑NP	RN05‑N / RN05‑P / RN05‑NP
Sensing Distance	5 mm	5 mm
Secure Sensing Distance	0–4 mm	0–4 mm
Standard Sensing Object	Iron 18×18×1 mm	Iron 18×18×1 mm
Sensing Surface	Front surface	Front surface
Hysteresis	≦10% of sensing distance	≦10% of sensing distance
Response Time	≈2 ms max	≈2 ms max
Operating Voltage	DC 10–30 V	DC 10–30 V
Current Consumption	≦8 mA no‑load	≦8 mA no‑load
Load Current	100 mA max at DC 30 V	100 mA max at DC 30 V
Leakage Current	≦1.1 mA no‑load	≦1.1 mA no‑load
Residual Voltage	≦1.5 V	≦1.5 V
Insulation Resistance	20 MΩ min. (DC 500 V)	20 MΩ min. (DC 500 V)
Voltage Withstandability	AC 1000 V 60 Hz 60 s	AC 1000 V 60 Hz 60 s
Operating Temperature	-20 °C to +60 °C	-20 °C to +60 °C
Operating Humidity	35%–85% RH	35%–85% RH
Protection Rating	IP64 (IP67 option)	IP64 (IP67 option)
Output Type	NPN / PNP / NPN & PNP (NO / NC selectable on NP models)	NPN / PNP / NPN & PNP (NO / NC selectable on NP models)
Wiring Method	Pre‑wired cable Ø4.2 × 2 m (3 or 4 wires) or M8 connector option	Pre‑wired cable Ø4.2 × 2 m (3 or 4 wires) or M8 connector option
Weight	Approx. 60 g (cable); ≈12 g (connector)	Approx. 60 g (cable); ≈12 g (connector)