https://www.masstransitmag.com/rail/rail-vehicle-builders-components-accessories/product/10887400/esterline-power-systems-leach-international-hermetically-sealed-relays
Hermetically Sealed Relays | Mass Transit
Designed for critical, fail-safe operation Can be combined with high technology circuit boards to offer economical solutions to the constraints of rolling...
hermetically sealed relaysmass transit
https://www.newequipment.com/product-directory/controls-instrumentation/relays/product/55109223/15831-hermetically-sealed-50-amp-relays
HERMETICALLY SEALED 50-AMP RELAYS | New Equipment Digest
The FCA-150 and FCAC-150 series of relays are designed to perform under the most demanding environmental conditions of temperature, altitude, shock, vibration,...
new equipment digesthermetically sealedamprelays