Siemens SENTRON, Window Current Transformer, , 400A Input, 1 A Output, 400:1. Overall Height: 67.6mm. Overall Width: 60.6mm. Overall Depth: 78.4mm. Minimum Temperature: -30°C. Maximum Temperature: +55°C. Mounting Type: Chassis Mount. Dimensions: 60.6 x 78.4 x 67.6 mm. For Use With: Sentron Power Monitoring Devices. MPN: 4NC5225-0CE21