The 40-323-901 (PXI) and 42-323-901 (PXIe) are 14xSPST relay modules suitable for applications requiring high voltage power switching with high density. They have current handling up to 0.25 A, cold switching up to 9 kVDC/9 kVAC peak and hot switching up to 7.5 kVDC/7.5 kVAC peak. They are also available in a 7xSPST configuration. User connections are made via a Redel S series high voltage connector.

Applications include; circuit board isolation testing, relay testing, semiconductor breakdown monitoring and cable harness insulation testing.

A hardware interlock is provided on the front panel connector that prevents relay operation if a suitably wired mating connector is not fitted. This can, for example, be used to disable relay operation if the test system cabinet door is open.