The XA-539850-J Expansion Section is designed for 400-amp conductor bar systems requiring precise electrical performance with heated medium heat capabilities. This expansion section provides controlled resistance of 0.060 ohms to accommodate thermal expansion while maintaining optimal conductivity. It is built to withstand medium heat environments and is used to ensure the safe expansion and contraction of the conductor bar assembly without compromising electrical continuity. This product is ideal for industrial and heavy-duty power distribution applications that demand robust, reliable components engineered to endure thermal and mechanical stresses. Key Features Rated for 400 amps continuous current Heated expansion section designed for medium heat environments Electrical resistance of 0.060 ohms for precise thermal control Facilitates safe thermal expansion and contraction of conductor bars Ensures reliable electrical continuity under mechanical stress Suitable for heavy industrial power distribution systems