Siemens SENTRON, Window Current Transformer, , 1.25kA Input, 5 A Output, 1250:5. Overall Height: 84.1mm. Overall Width: 112mm. Overall Depth: 127.5mm. Minimum Temperature: -30°C. Maximum Temperature: +55°C. Dimensions: 112 x 127.5 x 84.1 mm. Mounting Type: Chassis Mount. For Use With: Sentron Power Monitoring Devices. MPN: 4NC5434-2CH21