POWER METER CONFIGURED FOR REAR AND SIDE EXPANSION

摘要

An intelligent electronic device (100) for metering a characteristic of electricity that has a rear opening (214) and a side opening (216) in a housing of the device for accepting a connector of an expansion module through one or the other opening. The device can be configured with an integrated display module (120) that protrudes through a panel of an enclosure, and in this configuration, the expansion module connects to the device through the rear opening of the housing. The device can also be configured to be mounted on a DIN rail, and in this configuration, the expansion module connects through the side opening of the housing. The same module can be used in either configuration, without requiring that different versions of the module be made for the different configurations and without having to mount the device in an awkward orientation that makes it difficult to access external connections around the housing.