Power Supply

Appears in the issue.

The new SDC 621 one-amp power supply from Security Door Controls of Westlake Village, California, provides an economical solution for access control and lock power needs. It is available in three configurations, including power supply board only, a board with a plug-in transformer, or a board with an enclosure and a plug-in transformer. It features one switched and one auxiliary field-selectable 12/24 VDC output with short-circuit and overload protection. It also offers auxiliary control input, a supervised emergency release input with a choice of nonlatching or latching contact with manual reset capability, and LED status indicator.

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