Schneider Electric S48377 Modbus Communication Module

Schneider Electric's S48377 Modbus Cradle Communication Module (CCM) is a 24 V DC Modbus interface designed to slot into the cradle/back-plate assembly of Masterpact MCCBs to provide Modbus communication within Square D/Schneider Electric breaker ecosystems. This rail-mount CCM is powered from 24 V DC and typically consumes about 1 W, making it a compact, low-power addition to an existing Modbus network. Sold as a Modbus cradle module for Masterpact installations, the S48377 serves as a replacement CCM in systems that require Modbus connectivity between the breaker and a supervisory or control system, and it is supplied with a back plate to facilitate mounting within the cradle assembly. Wiring guidance indicates compatibility with AWG 16–12 conductors for the Modbus network, and the module is designed for installation on a standard mounting rail as part of the cradle configuration.