Schneider Electric 8003 EX30 Expansion Module

Square D 8003-EX30 Expansion Unit is a plug-in expansion module for Square D SY/MAX programmable logic controllers, providing additional backplane capacity to extend I/O and control capabilities in industrial automation environments. Operating from a 120/240 VAC supply, this expansion unit connects to the master controller to enlarge the system’s I/O topology without replacing the main controller. The enclosure measures 5.5 inches wide by 3.2 inches high by 3.0 inches deep (14.0 cm x 8.1 cm x 7.6 cm) and weighs about 0.4 kg, making it a compact addition for panel layouts with limited space. Manufactured in Japan, the 8003-EX30 is part of Square D’s legacy expansion line and is intended for use with compatible Square D PLCs to scale automation tasks in mid-sized industrial applications. Designed for straightforward integration with existing SY/MAX architectures, the EX30 expands the system without requiring major reconfiguration.