Funded by the Army’s Technical Support Working Group (TSWG) through Sandia Labs, the government wanted to develop security devices that met performance standards. Sandia enlisted Underwriters Laboratories to be the standards facilitator and together they developed new test parameters to better define performance for these devices to be used on these high level secure installations. An updated version of UL634 was published in October of 2007.

The result was that the old UL634 BMS High Security contact listing was re-named Level 1 High Security. No test procedures were changed or improved, and all devices that were previously listed to that level, were “grandfathered” in as Level 1 devices.

A new Level 2 High Security Standard was established that was based on much more stringent performance criteria that had been developed through the Sandia / UL collaboration. >>