This series of medical isolating transformers is offered in two different versions. The IMEDe series was designed especially for the use within Europe. Therefore, it is working with a fi x input and output voltage of 230 V~. The IMEDi series can be used in areas with 115 V~ and 230 V~ system voltage. Its voltage levels, which can be switched separately on the primary and secondary side, allow additional voltage adjustments. For both series, a built-in inrush current limiter on semi-conductor technique (NTC) avoids an unwanted blow of the input fuses of the device or of an automatic circuit breaker of the buildingâ??s sub-distribution through the inrush current. All devices are, depending on the model, equipped with one or two potential equalization bolts (POAG according to DIN42801) for the connection to a special medical potential equalization existing in the room of application. The protective earth conductor of the input socket is additionally conductively connected with the corresponding contacts of the output sockets. By this measure, the devices are equipped with a base potential equalization. Hereby, it is also possible to operate the devices in such medical rooms, in which no additional special potential equalization aside from the intact protective earth conductor of the wall socket is installed. The devices of the IMED series are designed for continuous operation. Self resetting temperature switches avoid damage through temperature rise in the device in a reliable way. The devices of the IMEDi series additionally have the NRTL approval which allows the use in the US American and Canadian market. The model IMEDi 300WR is designed for an extended input voltage range of 100-130 V~/220-240 V~.NORATEL IMEDi 300 Medical Isolating Transformer International Series New In Box with Power Cord Set As Shown In Pictures