The 29-221-12 is a single-pole, change-over (NO/NC) power relay from the KISSLING Series 29, featuring a 200A continuous current rating and a nominal 24VDC coil. This robust relay is environmentally sealed to meet IP67 and IP6K9K standards, ensuring protection against dust ingress and high-pressure steam cleaning. It is engineered to withstand 6G shock and 4G vibration over a wide operating temperature range of -40°C to +85°C. The 24VDC coil operates within a voltage range of 18-32VDC, and this specific model includes an integrated suppression device to eliminate electromagnetic interference. Due to its durability and high-current capabilities, it is well-suited for severe conditions in applications such as trucks, buses, and construction or agricultural vehicles.