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Electronic Theatre Controls Inc

Unison Heritage Contact Interface (UHCI) contact output electrical ratings

The maximum electrical ratings of the contact outputs on Unison Heritage Contact Interface (UHCI) are stated in the data sheet to support up to 1A @ 28 VDC or 0.5A @ 120 VAC. These contacts are intended for use with low-current/low-voltage devices, and are not designed to switch high-voltage or high-current devices. The UHCI does not support voltages above those listed in the data sheet. If you have an application which requires switching such devices, you can use a high-voltage contactor that takes a low-voltage input from the UHCI, or a power control product intended for such use (some ETC examples: Echo Relay Panel, DRd with R20, or Foundry Minipanel)

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