In control systems and panels that use redundant PLCs (plugins), it is necessary to duplicate digital inputs and outputs by the diode to increase their reliability. This is done by diode terminals or diode boards. The advantage of diode boards is their more reasonable price compared to diode terminals.
Ryan's RDB-8-R0 diode has 8 pairs of 1A diodes that can be easily installed on standard electric panel rails.
Another application of this diode board is its use in electrical panels to connect to signal lights and lamp test knobs, in which case it will significantly reduce the cost of removing the relays.
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All Ryan board diodes have a clear plastic spray coating to protect the parts from moisture. The diode board is used in electrical switchboards to connect signal lights and lamp test knobs, and in control and PLC switchboards to connect signal lights and inputs and outputs to Redundant digital PLCs.