![]() ![]() All Hubbell 3 phase models are designed for 3 wire (3 live, 1 ground) and 4 wire power systems and draw equal current across all conductors to maintain the power integrity of the users electrical system. Proper Power IntegrityĪll Hubbell tankless water heaters, including all 3 phase models, are engineered to operate as a balanced load and operate at 0.999 Power Factor. ![]() To improve operating efficiency and component longevity, each triac is mounted to a heat sink located on the incoming supply piping so that heat generated by the triac during the switching process is dissipated into the water. This switching schema provides full modulation of each heating element, ensuring that the precise amount of heat is added to meet demand. Each heating element is switched on/off using a fast acting solid state triac with zero cross over firing control. ![]()
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