H-Tronic 1115275 Rain Sensor with Potential-Free Relay Contact

The H-Tronic 1115275 is a rain sensor with a potential-free relay contact, ideal for automating systems based on precipitation detection. It reliably detects rain and snow, making it suitable for applications such as garden irrigation control, awning protection, and home automation.

Advantages

The sensor uses conductive measurement for accurate detection and offers adjustable sensitivity via a potentiometer. A status LED indicates relay state, and the potential-free changeover contact allows flexible integration with various control systems.

Suitable for

• Garden irrigation systems
• Awning and blind control
• Weather stations
• Home automation projects

Key specifications

• Operating voltage: 10-15 V/DC
• Output: potential-free relay contact (changeover)
• Max switching voltage: 25 V/AC/DC
• Max switching current: 1 A
• Standby current consumption: approx. 10 mA
• Active current consumption: approx. 40 mA
• Sensor principle: conductive measurement
• Sensitivity adjustment: via potentiometer
• Status indicator: LED
• Connection: screw terminals
• Operating temperature: -10 to +50 °C
• Sensor board dimensions: 55 x 40 x 15 mm
• Cable length: 2 m
• Protection class: IP65 (when mounted correctly)
• Detection: rain, snow
• Output configuration: NO/NC
• Mounting: wall mountable

Recommendations

For best results, mount the sensor board in an exposed location where rain can directly contact the sensing surface. Ensure the cable is routed to avoid water ingress at connections.