The Marathon/Kulka 621-RZ-06PSB terminal block is a high-quality component designed for secure and reliable electrical connections in commercial appliances and industrial equipment. Its closed-back design provides enhanced safety and prevents accidental contact with conductors. The block is rated for 20 amps and 600 volts, and is UL Listed and CSA Certified, ensuring compliance with industry standards. Constructed with brass, tin-plated contacts, and a glass-filled polycarbonate insulator, this terminal block offers excellent durability and performance in demanding environments. It is suitable for factory and field wiring applications.