The CPP11-52-20.0A-OB-V is a single-pole, series trip hydraulic-magnetic circuit protector from the SNAPAK® family, featuring a push-pull actuator. This protector is rated for 20.0A and incorporates a slow DC trip delay, providing robust overcurrent protection for DC applications. Key features include a trip-free mechanism that ensures tripping on overload even if the actuator is held on, and a wide operating temperature range of -40°C to +85°C. As a UL 489A listed device, it is specifically designed for communications equipment, making it ideal for switching, transmission, and wireless applications where reliable protection in a compact form factor is essential.