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Hongfa is a large Chinese relay manufacturer that was founded in 1974. Its head office is in Xiamen, China. The company has over 20 subsidiaries, including one in Germany, and manufactures relays, contactors and switchgear. The company's relay manufacturing facilities conform to the ISO 9001, ISO 14001, ISO/TS 16949, OHSAS 18001 and IECQ 080000 standards. Annual production volumes exceed 1.5 billion relays, while the relay product range contains over 226 relay variants. Hongfa's standard DC operated PCB power relays are rated for switching currents between 5 and 30 amps with contact ratings up to 277 volts AC and have a guaranteed low contact resistance. The company also manufactures miniature PCB signal relays designed for switching resistive loads between 1 and 5 amps AC/DC with a mechanical endurance of 10 million operations. This business manufactures a range of multi-pole plug-in industrial relays as well as high-power industrial controllers capable of switching up to 30 amps AC (250 volts) and 20 amps DC (28 volts). The company manufactures a full range of relay accessories, including relay sockets and retainers.

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