Automation equipment, home appliances and industrial control systems all rely on relays because they are dependable and space-efficient. This purpose is exactly what the FH48 series relay is designed for. It integrates high switching capability. It also has an ultra-slim design. It has excellent insulation performance. It has extensive certifications. This provides engineers with a rugged and compact solution.
The essence of the FH48 series lies in its precise engineering balance. Despite its compact dimensions of 28.6×10.3×12.3mm, it is capable of switching loads up to 10A. Its ultra-low height of just 12.5 mm is particularly noteworthy, as it frees up valuable space for increasingly slim electronic devices and high-density PCB layouts.The product utilises a flux-resistant design or entirely plastic-sealed construction, effectively repelling dust, moisture, and detrimental gases (such as H₂S and SO₂), thereby ensuring stable operation across a broad temperature spectrum from -40℃ to 85℃ and accommodating various environments from clean rooms to industrial settings.
This series of relays offers outstanding performance and reliable details:
Electrical Performance: Utilizes silver tin oxide (AgSnO₂) contact material, offering strong resistance to arc erosion. The initial contact resistance is as low as ≤100mΩ, ensuring low power consumption and long life. The insulation resistance reaches 1000MΩ, and the dielectric strength between the coil and contacts is 5000VAC, ensuring a robust safety barrier.
Mechanical and Durability: Fast operate and release times (≤10ms / ≤5ms) ensure quick response. Mechanical endurance is up to 10 million operations. Under the rated load of 10A 250VAC, electrical endurance also reaches 10 million operations, meeting the needs of long-term stable operation.
Flexible Drive: Provides an extensive array of coil voltage options from DC5V to DC60V, with power consumption ranging from 250mW to 300mW, facilitating seamless integration with diverse control circuits.
The FH48 series provides highly flexible configurations to meet different circuit design needs:
Contact Form: Offers three essential configurations: 1A (normally open), 1B (normally closed) and 1C (changeover).
Mounting Type: Many PCB pin configurations are accommodated (Type 1, 2, 3), with comprehensive dimensional schematics and wiring guidelines to supplement them.
Protection Level:The choice between the standard flux-resistant type and the fully plastic-sealed version depends on the operating environment.
The ordering code "FH48-1A1ST-XXXDC12V" clearly indicates the type, contact form, mounting style, construction, contact material, and coil voltage, facilitating accurate selection.
The product has obtained several international mainstream safety certifications, including:
UL / cUL (File No. E475405)
TÜV (File No. R 50610371)
CQC (File No. CQC23002412542)
These certifications encompass diverse voltage ratings and load circumstances, demonstrating that the FH48 relay adheres to rigorous international safety standards and is suitable for usage in global markets, particularly in sectors such as household appliances (IEC60335-1) and industrial control.
Thanks to its reliable performance and compact design, the FH48 series relay is widely used in:
Household Appliances: Main control or power switching in air conditioners, washing machines, dishwashers, etc.
Industrial Control: Output modules for programmable logic controllers, motor controllers, and instrumentation.
Power Equipment: UPS systems, power distribution modules, smart meters.
Communication Infrastructure: Base station equipment, network energy administration.
New Energy Vehicles: Supplementary circuits for battery management, charging regulation, etc.
With its excellent electrical performance, robust mechanical construction, flexible design options, and comprehensive safety certifications, the FH48 series relay has become the ideal choice for applications requiring high reliability and space-saving design. It is not merely a component but an essential collaborator in guaranteeing the reliable and secure operation of your equipment.
