Designed for endurance and reliability in harsh industrial applications, the HD utilizes rugged back-to-back inverse parallel SCRs to switch power to AC loads. The input of the HD can accept control signals between 4Vdc and 32Vdc and incorporates an active current-limiting circuit. This enables the HD to switch 90 amp loads with only 12mA of input current, making them ideal for applications utilizing low-power PLCs or control boards. When an input signal is applied, the output of the solid state relay will not conduct load current until the AC mains passes through the zero-crossing point of the sine wave. This greatly reduces inrush currents and minimizes the level of conducted emissions coupled onto the AC mains by the solid state relay.
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Solid State Relay, 4 to 32VDC, 90A
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HBC-90HDA 40 Amp / 48-530Vac, DC Input Solid State Relay Power Controller