The HF105F-4/024AK-1ZSF(257) is a miniature high-power electromagnetic relay manufactured by Hongfa. It is designed for a variety of applications requiring reliable switching of electrical circuits. This relay features a robust construction and high contact rating, making it suitable for controlling heavy loads.

Applications

• Home appliances (e.g., air conditioners, refrigerators, washing machines)
• Industrial control systems
• Power supplies
• Uninterruptible Power Supplies (UPS)
• Automotive applications
• Lighting control systems

Features

• High contact rating: Capable of switching high currents and voltages.
• Miniature size: Compact design for space-constrained applications.
• SPDT (Single Pole Double Throw) contact form: Offers versatile switching options.
• 24VDC coil voltage: Compatible with standard control circuits.
• High insulation resistance: Ensures electrical safety and prevents leakage currents.
• Long electrical life: Designed for reliable operation over an extended period.
• Sealed construction: Protects against dust and moisture.

Benefits

• Reliable switching: Provides consistent and dependable performance.
• High power handling: Can control demanding electrical loads.
• Compact design: Saves space in equipment and systems.
• Versatile applications: Suitable for a wide range of uses.
• Long service life: Reduces maintenance and replacement costs.
• Enhanced safety: Ensures safe operation of electrical equipment.

Additional Details

The HF105F-4/024AK-1ZSF(257) relay has a coil resistance suitable for direct drive from many common driver circuits. The 1ZSF indicates a specific terminal arrangement or protective feature that contributes to overall functionality. The "(257)" suffix is likely a date code, manufacturing code or a tracking identifier. The contact material is typically a silver alloy. Insulation voltage values range from 4000 VAC between coil and contacts to 750 VAC between open contacts. The operating and release times are relatively fast, typically in the range of milliseconds. The expected electrical life of the relay depends on the load being switched but is typically rated for tens or hundreds of thousands of operations at the rated current.