836-A2JX140 - 836 Pressure Controls - General Industrial, Device Style A, Internal Copper Alloy Bellows, Type 4 & 13 Metallic Aluminum enclosure, X140, External Manual reset contact block. Single pole single throw, normally open - contacts open at a predetermined setting on fall and remain open until system is restored to normal conditions at which time contacts can be manually reset. - Quad Industry GmbH