3RA2120-4AA26-0BB4 SIEMENS

The 3RA2120-4AA26-0BB4 is a fuseless load feeder designed for direct-on-line starting of motors at 400 V AC. This compact and efficient device, size S0, is suitable for motor currents ranging from 10 to 16 A. It operates on a 24 V DC control supply and features convenient screw terminals for easy installation. The load feeder is designed for mounting on standard mounting rails, simplifying the assembly process in control panels. It is engineered to meet both Type of Coordination 1 and Type of Coordination 2 standards, ensuring reliable short-circuit protection. With a high short-circuit withstand capacity of Iq = 150 kA, it provides robust protection against fault currents. The integrated contactor includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for enhanced control and monitoring capabilities. This load feeder offers a space-saving and cost-effective solution for motor starting applications, combining overload protection, short-circuit protection, and control functionality in a single unit. Its robust design and compliance with industry standards make it a dependable choice for various industrial applications.