ABB 1SVR405663R1000 Electrical Protection & Circuit Control - UL 508

Arc quenching capability in the CR-U 51C plug-in module reduces arcing when switching inductive loads, protecting contacts and minimizing EMI in control circuits. By absorbing transient energy at the moment of switching, it extends relay life and lowers maintenance costs in harsh industrial environments. This feature is especially valuable in machine safety circuits and conveyor controls where uptime is critical. Pluggable function module design for universal relay sockets allows rapid field replacements and easy retrofits without wiring changes. The modular approach reduces downtime during preventive maintenance and simplifies spare parts handling for large automation lines. In practice, technicians swap to the CR-U module in minutes, keeping lines running and reducing factory floor intervention. Rated control supply voltage of 110-230 V AC/DC (110-240 V AC) provides broad compatibility with mixed-control systems across machines and panels. This wide range helps standardize components across different line stations, reducing inventory and engineering effort. The compact form factor ensures it fits CR-U sockets even in tight cabinet spaces. Certified to UL 508, CE, cURus, UKCA, and EAC, the module meets global safety and regulatory expectations. Compliance across major markets simplifies procurement for international projects and minimizes risk during audits. Engineers can confidently specify this accessory for cross-border automation architectures. With dimensions of 34 mm width, 24 mm height, and 9 mm depth, plus a light 0.007 kg weight, the module minimizes panel footprint while maintaining robust mechanical fit. The data sheet and CAD resources support seamless integration into design workflows, and the included EAN and packaging details streamline ordering for procurement teams in modern factories.