Best Key Card Switch Brands for Hotel Room: 1.5HP AC, 2000W Heater, 48W Lighting

The discussion addresses the selection of key card switches for hotel rooms designed to control a 1.5 HP air conditioner, a 2000W water heater, and multiple LED lighting points. Clipsal offers a 250V 16A key card switch suitable for 220-240V systems, capable of handling the combined load, but caution is advised due to the high current near guests. It is recommended to use the key card switch to control contactors or relays for each load circuit rather than switching high current directly through the switch, enhancing safety and reliability. In U.S. practice, separate circuits for each load are common, with the key switch activating relays. The key card reader is typically separate from the mechanical switch inside the room and often integrates with property management systems and occupancy sensors. Instant hot water heaters are suggested as a more efficient alternative to switching the water heater via the key card switch, avoiding delays in hot water availability. Overall, the use of contactors controlled by the key card switch is preferred for managing high power loads safely in hotel room energy-saving designs.
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