Siemens SENTRON, Window Current Transformer, , 500A Input, 1 A Output, 500:1. Overall Height: 84.1mm. Overall Width: 82.5mm. Overall Depth: 98mm. Minimum Temperature: -30°C. Maximum Temperature: +55°C. Dimensions: 82.5 x 98 x 84.1 mm. Mounting Type: Chassis Mount. For Use With: Sentron Power Monitoring Devices. MPN: 4NC5326-0DE21