The XA-539731-J is a medium heat-rated expansion section with integrated heating, specifically engineered for 100A conductor bar systems. With a resistance of 0.305 ohms, this unit provides effective thermal regulation to prevent condensation and freezing inside the conductor housing. It also accommodates thermal expansion and contraction of the conductor bars, minimizing mechanical stress and maintaining system performance. Ideal for industrial environments where temperature control and electrical reliability are critical, especially in outdoor or cold climate applications. Key Features Compatible with 100A conductor bar systems Medium heat rated with built-in heating element Heating resistance: 0.305 ohms Prevents moisture buildup, condensation, and freezing Supports thermal expansion and contraction Maintains reliable electrical connectivity in variable temperatures Suitable for industrial and outdoor applications