Thermal Relay JR051064 is a critical safety component for Hydraulic Rock Drills. It is engineered for drill electric motor protection. For instance, it safeguards hydraulic pump motors in underground drills. Additionally, it protects rotation motors in open-pit drill systems.
Mining environments pose severe challenges for drill thermal relays. First, continuous motor overload causes overheating and device failure. Second, 40G vibration damages internal components and disrupts calibration. Third, dust and water intrusion short-circuits electrical contacts. Fourth, temperature swings affect bimetallic strip sensitivity. Fifth, electromagnetic interference interferes with trip accuracy.
These issues often lead to relay malfunction. For example, a faulty relay fails to trip during overload. As a result, motor burnout and costly system downtime occur. Yet, Thermal Relay JR051064 solves these pain points with robust design.
First, its high-sensitivity bimetallic strip detects tiny temperature changes. Moreover, it offers a 5-25A adjustable current range. This adapts to different drill motor power requirements. Consequently, protection accuracy improves by 30% vs. fixed-range relays.
Second, silver alloy contacts ensure low resistance and high durability. Notably, they deliver a 0.1s fast trip response during overload. This prevents motor overheating and permanent damage. As a result, motor service life extends by 180%.
Third, the flame-retardant PA66 housing with IP65 rating blocks dust and water. This outperforms IP54 relays in harsh mining conditions by 50%. Furthermore, it resists corrosion from mining humidity and slurry. This avoids contact short-circuiting and electrical faults.
Fourth, the reinforced internal structure absorbs 40G vibration. Importantly, it maintains calibration accuracy under extreme drill vibration. This eliminates false trips and protection failures. This enhances overall electrical system reliability.
Fifth, the wide -30°C~80°C temperature range ensures stable operation. It works in freezing high-altitude mines and hot underground circuits. On top of that, it resists electromagnetic interference from drill systems. This preserves trip precision in noisy electrical environments.
Unlike generic industrial thermal relays, this model is purpose-built for drills. Specifically, the vibration-resistant design targets mining operation conditions. Additionally, the adjustable current range addresses diverse motor needs. These features align with real mining demands. As a result, it outperforms standard relays by 170% in service life. This cuts replacement costs and unplanned downtime.
Our manufacturing process uses precision stamping and contact plating. Furthermore, it involves vibration testing and trip accuracy calibration. Each unit undergoes 40G vibration trials and 0.1s trip response checks. Notably, no performance degradation is allowed before shipment.
The relay operates reliably in all heavy-duty mining conditions. Moreover, the silver alloy contacts endure 100,000-cycle trip tests. No contact welding or oxidation occurs during this period. Additionally, the IP65 housing remains intact for 24+ months.
The plug-and-play installation design integrates seamlessly with drill systems. It requires only standard electrical tools for fitting. Consequently, maintenance teams complete replacement in 15 minutes. This minimizes operational downtime.
Our quality team conducts strict ISO 9001 verification for every unit. For example, tests include trip accuracy checks, vibration resistance trials and IP rating tests. Importantly, it complies with IEC 60947-4-1 standards and mining electrical safety regulations.
It is a direct OEM replacement for top Hydraulic Rock Drill brands. Furthermore, its reliability reduces relay-related failure rates by 96%. Backed by a 12-month warranty, it lowers annual maintenance costs by 62%.
It ensures reliable overload protection for drill electric motors. Additionally, it extends the service life of drill electrical assemblies by 85%. Overall, it delivers cost-effective, industrial-grade reliability. It minimizes downtime from motor burnout. As a result, this maximizes operational efficiency and project profitability.
