Relay Systems of America

    The RelayCard series marks a new age in locomotive switching technology. The hybrid design combines state of the art control circuitry with low cost replaceable square type load relays yielding a switching platform that’s reliable, inexpensive and upgradeable. Perfectly suited for all types of railroads and rebuilders, both big and small. Designed for automated production this relay allows for mass production to meet varying needs and reduce lead times. The modular design allows a customized configuration without the high costs associated with small custom orders. This would better serve our smaller customers or larger railroads looking for custom orders while maintaining parts interchangeability. A solid state control board is housed along with a bright red LED status indicator, a Molex connector and the load relay socket. The load relay plugs into the control housing allowing replacement of either component separately. This reduces inventory costs since the average load relay is under $25. Fast-on models and custom connectors are also available. For OEM and larger railroads the RelayCard can be built onto a single board with as many as a dozen relays operating independent of each other. This model would still allow for easy load relay replacement and would have a repair and return or unit exchange on the control boards.

    The RelayCard general purpose relay models come in 2 form C, 3 form C, 4 form C, 5 form C and 6 form C. All models are designed to be direct replacements for vapor style relays. No modifications to the electrical system. Models that incorporate Molex connector will need pin terminations installed the first time. Installation kit available that includes plug connector, pins and crimping tool. The RelayCard models all use the same 22 pin molex style connector.