Automatic control of optimal snow melting operation from three sensor inputs! Achieving efficient and waste-free road heating.
The RHC-51B is a road heating controller that employs a "three-element control method" combining three factors: outdoor temperature, pavement temperature, and pavement moisture. It automatically switches between "preheating operation," "anti-freezing operation," and "snow melting operation" according to road conditions, reducing unnecessary power consumption by operating only when needed. Additionally, it has a high level of reliability, allowing for emergency operation to continue through power control even in the event of a sensor malfunction.
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basic information
Power Supply: AC180-220V 50/60Hz Power Consumption: 15W or less Control Method: Three-element automatic control (outdoor temperature, road surface temperature, road surface moisture) Control Output: Voltage-free contact AC250V 3A (resistive load) Communication Function: RS-485 communication port Dimensions: H280 × W150 × D90mm Weight: Approximately 2.4kg Installation Method: Inside control panel / Indoor panel surface mounting
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Applications/Examples of results
Parking lot Sidewalk Slope / Driveway Entrance Ramp Various snow melting equipment
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Download All Catalogs![- Road Heating System Product Catalog (Ryosei Co., Ltd.) [Nikko Electric Co., Ltd. Sendai Sales Office]](https://image.www.ipros.com/public/catalog/image/01/dc3/577554/IPROS13686129609488127440.jpeg?w=120&h=170)
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Company information
At the "Osaki Industrial Fair 2025" held on October 17th (Friday) and 18th (Saturday) of Reiwa Year 7, we were fortunate to connect with many people. Thank you to everyone who attended. ☆☆☆☆★☆☆☆☆★☆☆☆☆★☆☆☆☆★☆☆☆☆ As the general agent for floor heating systems and snow melting systems, we respond to a variety of needs not only in general residences across Tohoku but also in welfare facilities and public institutions, with the latest system variations and comprehensive total support. You can experience comfortable warmth from the morning with heat stored overnight. The "storage-type floor heating system," which utilizes nighttime electricity, is economical and represents the ideal system of having a cool head and warm feet. Since it does not use any open flames indoors and does not require space for heating equipment, it is perfect for nurseries, kindergartens, and welfare facilities.
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