Low-profile PCB relay (height 15.7 mm, 5 contacts), compliant with EN 50578 (UIC 736e). The H-473 is a low-profile signal relay - 5 contacts, 15.7 mm installation height, PCB mounting. It is contact-failure tolerant, provides uniformly reinforced insulation across all contacts, has a switching current of up to 6 A, and uses AgNi or AgSnO2 contacts with 0.2–5 µm gold plating. The H-473 meets EN 50578 / UIC 736e requirements for signal relays. Typical applications: axle counters, level-crossing barrier control, turnout control, signals and signalling devices, and railway signalling control circuits. Like the H-472, it is used where low installation height is important while maintaining compliance with railway signalling relay requirements.
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