Siemens SENTRON, Window Current Transformer, , 800A Input, 1 A Output, 800:1. Overall Height: 84.1mm. Overall Width: 112mm. Overall Depth: 127.5mm. Minimum Temperature: -30°C. Maximum Temperature: +55°C. For Use With: Sentron Power Monitoring Devices. Mounting Type: Chassis Mount. Dimensions: 112 x 127.5 x 84.1 mm. MPN: 4NC5431-0CH21