Siemens 0.4kVA Isolating Transformer, 400V ac Primary 1 x, 24V ac Secondary. Mounting Type: DIN Rail. Length: 121mm. Width: 122mm. Depth: 114mm. Dimensions: 121 x 122 x 114mm. Minimum Operating Frequency: 50Hz. Maximum Operating Frequency: 60Hz. Maximum Temperature: +40°C. Weight: 5.4kg. MPN: 4AM4642-5AN00-0EA0