The dependability, load-bearing capability, and environmental adaptability of electrical control components significantly affect the system's steady functioning in crucial domains like industrial automation and new energy. The FH66NE160/100 Series Latching Relay, developed and manufactured by Zhejiang Fanha Electronics Co., Ltd., is a high-performance solution designed to meet these challenges. This series offers two current ratings, 160A and 100A, combining high switching capacity, compact construction, long lifespan, and comprehensive safety certifications, making it an ideal choice for photovoltaic inverters, pre-charge circuits, and industrial control equipment.
High Current-Carrying Capacity: The maximum switching voltages for the 160A and 100A rated current versions are 830VAC and 800VAC, respectively.
Excellent Contact Performance: Employs silver tin oxide contact material, characterised by low contact resistance (initial ≤2mΩ) and a contact gap of 4.0mm.
Fast Response: Operate time ≤30ms, release time ≤10ms, ensuring precise control timing.
Ultra-Long Lifespan: Mechanical endurance up to 1 million operations; electrical endurance reaches 30,000 operation cycles under rated load.
Strong Environmental Adaptability: Wide operating temperature range (-40℃ ~ +85℃), with good resistance to shock (functional grade 98m/s²), vibration (10-55Hz), and a dust-resistant structure.
Rated Load (Resistive, 85℃):
160A Model: Make 50A, Carry 160A, Break 50A @ 830VAC.
100A Model: Make 30A, Carry 100A, Break 30A @ 800VAC.
Insulation Performance: Insulation resistance ≥1000MΩ; dielectric strength is 2500VAC/1min between contacts, 5000VAC/1min between coil and contacts.
Surge Withstand: Capable of withstanding a surge voltage of 10KV (1.2/50µs waveform) between coil and contacts.
Voltage Options:DC 6V, 9V, 12V, 24V, and 48V rated coil voltages are available.
Key Parameters (e.g., at 23℃, DC12V): Operate voltage ≤9V, release voltage ≥0.6V, coil resistance approx. 45Ω, rated power approx. 3.2W.
Usage Note: After brief energization at the rated voltage, the coil must be switched to a holding voltage (40%-60% of rated voltage) for operation to prevent overheating. If it's a 12V kind, don't exceed the maximum voltage of 13.2VDC.
Model Coding Rules: Uses a structured code, e.g., "FH66NE100-1A1TF-DC12V", indicating series, rated current, contact form, terminal type, contact material, insulation class, customer-specific code, and coil voltage in sequence.
Configurable Options: Users can select current rating, contact configuration (1 Form A), insulation class (Class F), and coil voltage as needed.
This series has obtained multiple international and domestic authoritative safety certifications, including:
UL / C-UL (File Number: E475405)
TUV (Certificate Number: R 50601543)
CQC (Certificate Number: CQC23002405299)
The certifications encompass electrical endurance assessments in both high and low-temperature conditions, thereby ensuring dependable and safe continuous operation.
Installation Information: The datasheet provides detailed wiring diagrams, PCB layout diagrams, and precise dimensions (45×40×43mm).
Soldering Requirements: Recommended soldering temperature for the load copper terminals is 260℃±5℃ for 3-5 seconds.
Operation and Maintenance: To avoid affecting performance, prevent the product from being dropped or subjected to external impact.
The FH66NE160/100 Series Latching Relay is characterised by its high switching capacity, extended electrical lifespan, strong environmental adaptability, and extensive safety certifications, making it a dependable option for rigorous power control applications. Its flexible design options and clear installation guidelines facilitate integration into various photovoltaic and industrial systems, ensuring stable and efficient operation.
