The HF115F/012-1HS3AF(257) is a miniature high-power relay manufactured by Hongfa, designed for switching applications requiring high contact ratings and compact form factor. This relay features a 12 VDC nominal coil voltage with a pickup voltage of 8.4 VDC maximum and dropout voltage of 1.2 VDC minimum, with a coil resistance of 360 O (±10%). The contact arrangement is 1 Form A (single pole, normally open) with a maximum switching voltage of 440 VAC / 300 VDC and a contact rating of 16 A at 250 VAC. The relay has a low profile height of 15.7 mm, 5 kV dielectric strength between coil and contacts, contact gap of =0.75 mm, and a creepage distance of 10 mm, meeting VDE 0700 and 0631 reinforced insulation standards. It is plastic sealed and flux-proofed, with AgCdO contact material and Class F insulation system. Common applications include industrial control, power distribution, and switching circuits where compact size and high switching capacity are required.