HONGFA
Relays, contactors and switching components for automation, energy and electromobility
About the manufacturer
Hongfa is a global manufacturer of relays, contactors and switching components used in industrial automation, energy systems, automotive applications and industrial electronics. The company originated in China and has operated in the industry since 1984. It supplies solutions for control systems, automotive electronics, smart energy meters, energy infrastructure and modern electric vehicles.
Hongfa relays are used in household appliances, consumer electronics and energy systems. The manufacturer offers models with different rated coil voltages, from standard 5 V and 12 V versions to higher-voltage variants intended for industrial installations. The broad portfolio allows engineers to select components for both low-level signal circuits and applications requiring high-current switching.
The relay design provides low contact resistance and long mechanical life, supporting reliable continuous operation. Automotive product lines are designed to meet demanding quality requirements, including resistance to vibration, thermal shock and moisture.
Hongfa products are valued for reliable operation, long service life and stable electrical parameters. They provide safe switching of electrical circuits and form a key part of many control and energy-management systems.
The company invests in modern relay technologies that support energy transition, industrial automation and electromobility. Hongfa solutions are designed for high energy efficiency, safe use and operation in demanding industrial environments.
Applications
Hongfa products are used in many sectors:
• Industrial automation – process control and monitoring systems.
• Energy – smart energy meters and grid infrastructure.
• Electromobility – charging stations and electric-vehicle systems.
• Automotive – control and energy-management systems.
• Industrial electronics – actuating and protection equipment.
• Smart Grid systems – intelligent energy networks.
Power relays and signal relays are particularly important because they enable electrical circuits in modern equipment to be controlled safely.
HONGFA products available from Maritex
The Hongfa range available from Maritex includes switching components intended for industrial, energy and electronic applications.
Available product groups include:
• Electromagnetic relays.
• Power relays.
• Signal relays.
• Relays for energy meters.
• Contactors.
• Components for electromobility.
• Solutions for industrial automation.
• Components for energy systems.
Maritex provides access to relays and contactors including HF105F-1/012D-1HST, HF115F/006-2Z4B and HF115F/006-2ZS4A. Popular industrial series are available from stock, while specialist models can be supplied to order.
Depending on the series, Hongfa products can be used in industrial equipment, energy systems, electric-vehicle charging stations and projects requiring highly reliable switching.
Through its expertise in relay technologies, Hongfa supports modern automation, energy systems and electromobility by providing high quality, durability and operational safety.
FAQ
What is the difference between monostable and bistable relays?
A monostable relay keeps its contacts in the operating position only while the coil is energised. Once the voltage is removed, it returns to its rest position. A bistable relay retains the last contact position even after the supply voltage is removed, which can significantly reduce energy consumption in applications where a state must be maintained for a long time.
What are the benefits of relays with reinforced insulation?
Relays with reinforced insulation provide a higher level of safety in circuits where control systems could be exposed to high voltage. Hongfa offers models with insulation enabling separation above 5 kV, making them suitable for medical equipment, measurement systems and devices connected to the power grid.
Which relay coil voltage should be selected?
The relay coil voltage should match the control voltage available in the automation system. Common options include 12 V DC, 24 V DC and 230 V AC. Low-voltage systems such as PLC and microcontroller circuits usually use 12 V DC or 24 V DC coils. The voltage tolerance should also be checked in the datasheet.
What are DIN-rail sockets used for?
DIN-rail sockets are universal relay bases used in switchboards and control cabinets. They allow fast installation and replacement without drilling mounting holes or rewiring the installation. Screw or plug-in terminals simplify cable connection, while selected models also provide indicators or connections for protective components.
