The WAGO part 281-657 is a durable and reliable 4-conductor ground terminal block designed for various applications. With a wire size capacity of 4 mm² and a vibrant green-yellow color, it provides a secure electrical connection for easy installation and maintenance. The terminal block is equipped with a center marking for efficient identification and is compatible with DIN-rail sizes 35 x 15 and 35 x 7.5, making it suitable for a wide range of industrial and commercial environments. Featuring CAGE CLAMP® technology, it ensures secure and vibration-resistant connections. Overall, this ground terminal block from WAGO offers exceptional performance and flexibility for grounding applications.