ABB Jokab Safety 2TLA010004R0000Product Attribute Attribute Value Series JSB Series UPC Code 888614093515 Overview JSB Safety Relay Series The JSB safety relay from ABB has two inputs, which both have to be closed to keep the safety output contacts closed. This makes the device ideally suited to two hand safety control systems, however can be also used in many other safety control applications. When the JSB safety relay from ABB is used as a two hand device relay, both buttons have