The ABB KT5PMK4 is a high-quality accessory specifically designed for enhancing the functionality of circuit breakers. This plug-in kit is compatible with T5 4-pole circuit breakers, ensuring a reliable and secure connection. The item number for this product is KT5PMK4, and it features a UPC of 662019224404, confirming its authenticity and quality standards set by ABB, a trusted name in electrical components. The kit weighs approximately 1 pound 13 ounces, making it lightweight yet durable for both shipping and installation. Ideal for both upgrades and maintenance tasks, the ABB KT5PMK4 plug-in kit is an essential component for ensuring the operational efficiency and safety of your electrical systems.