Bus bar current interruption device and energy storage device

An energy storage device comprising a bus bar current interruption device comprising:

• a casing providing an enclosure;
• and
• a bus bar arrangement arranged to extend through the enclosure, said bus bar arrangement comprising:
• a first terminal end portion and a second terminal end portion, each of said first and second terminal end portions arranged outside of the casing;
• and
• a first fuse portion and a second fuse portion arranged in the enclosure,
• wherein the casing further comprises an exhaust opening configured to allow escape of vapor from the enclosure, and
• wherein the exhaust opening is fluidly connected to an exhaust chamber or conduit formed by the casing or attached to the casing.

A vehicle comprising an energy storage device comprising a bus bar current interruption device comprising:

• a casing providing an enclosure;
• and
• a bus bar arrangement arranged to extend through the enclosure, said bus bar arrangement comprising:
• a first terminal end portion and a second terminal end portion, each of said first and second terminal end portions arranged outside of the casing;
• and
• a first fuse portion and a second fuse portion arranged in the enclosure,
• wherein the casing further comprises an exhaust opening configured to allow escape of vapor from the enclosure, and
• wherein the exhaust opening is fluidly connected to an exhaust chamber or conduit formed by the casing or attached to the casing.