The FH61NE is a premium new energy relay. It is specifically engineered for modern energy systems, particularly high-current, high-reliability switching scenarios in solar PV inverters and electric vehicle charging infrastructure. This product not only fulfills fundamental circuit switching functions but also integrates advanced safety monitoring mechanisms and ultimate energy efficiency design, representing the cutting edge of industrial-grade relays in safety, durability, and energy conservation.
Dual Main Contact System: Features two independent 40A high-current contact sets that can be used in parallel to handle up to 80A of instantaneous current, effortlessly managing current surges during inverter startup or sudden load changes.
High Voltage Compatibility: Main contacts support switching voltages up to 480VAC, enabling broad application in 380V/415V three-phase systems and certain specialized high-voltage environments.
Complies with IEC 61810-3 Safety Standard: Distinguishing product characteristic. The auxiliary contacts provide a safety gap of 0.5 mm in case the main contacts 'stick' due to arcing or other irregularities.
Enables Proactive Safety: This design enables external control systems to monitor auxiliary contact status, allowing real-time diagnosis of main contact functionality. When problems are detected, it disconnects upstream power or activates alarms, preventing equipment damage and accident escalation, improving system safety.
Magnetic Retention Principle: Utilizing a magnetic retention structure, the coil requires pulse power only during the instantaneous switching state. Once switching is complete, no continuous power supply is needed to maintain the switch state.
Ultra-Low Power Consumption: In comparison to conventional relays that continuously use power, it drastically lowers system standby power consumption and operating costs with a coil rated power of only 1.88W. This is particularly significant for energy equipment operating over extended periods.
Flexible Drive Voltage: Offers multiple coil voltage options ranging from DC 6V to 48V, ensuring direct compatibility with various control boards (e.g., PLCs, microcontrollers).
Premium contact material: The primary contacts employ silver-tin oxide (AgSnO₂) material, which provides outstanding resistance to electrical arcing erosion and enhanced conductivity, thereby ensuring a prolonged electrical lifespan.
Extended mechanical life: Mechanical endurance reaches up to 5 million cycles, ensuring reliable operation even under no-load conditions.
Robust Electrical Life: It reliably completes 50,000 switching cycles under rated load (e.g. 40 A/277 V AC) at an ambient temperature of 85 °C.
Harsh Environment Adaptability: Its ability to operate reliably in harsh industrial and outdoor environments is ensured by its wide operating temperature range of -40°C to +85°C, coupled with excellent vibration and shock resistance.
Compact Design and Easy Integration
Compact Size: Measuring just 37.2x30x40mm with PCB mounting, it saves valuable space in high-power-density equipment.
Clear Wiring Definition: Rapid circuit board design and system integration for engineers is facilitated by detailed wiring diagrams and PCB layouts.
Solar PV Systems: Functions as DC-side or AC-side switches within inverters, enabling grid-connected and off-grid control of power generation units.
EV Charging Infrastructure: Serves as the main contactor in AC charging stations, controlling the charging circuit's on/off state.
Industrial Automation: This is used in high-current switching applications, including PLC output modules, motor control cabinets and power distribution units.
Energy Storage Systems (ESS): The function is to oversee the energy flow between the battery banks and the inverter.
The FH61NE magnetic latching relay is more than just a basic switching component. It provides an integrated system-level solution offering high current-carrying capacity, proactive safety protection, optimum energy efficiency and long-lasting reliability. The design of this equipment is able to deal with the strict requirements that are being placed on electrical equipment by modern green energy applications. It stands as the ideal choice for engineers designing and optimizing high-reliability power management systems, providing robust protection for your critical equipment.
