The MARATHON/KULKA part 1604DJ is a Conn Heavy Duty Terminal Block designed for reliable and secure electrical connections. With 4 positions and a 16.7mm screw ST panel mount, this terminal block is perfect for heavy-duty applications requiring up to 30A of current. Its sturdy construction ensures durability and long-lasting performance. Whether you need to connect motors, power supplies, or other electrical components, this terminal block provides a secure and efficient solution.