3RA2120-4BA26-0AP0 SIEMENS

The 3RA2120-4BA26-0AP0 Siemens is a fuseless load feeder designed for direct-on-line starting of motors at 400 V AC. It is a size S0 device suitable for motor currents ranging from 13 to 20 A. The load feeder incorporates a 230 V AC coil for the control circuit and utilizes screw terminals for secure and reliable connections. It is designed for easy installation on standard mounting rails, simplifying the assembly process in control panels. This device offers Type of coordination 1, ensuring a degree of protection for the motor and the feeder itself in the event of a short circuit. The integrated contactor features 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for signaling and interlocking purposes. With a high short-circuit withstand capacity of Iq = 150 kA, it provides robust protection against high fault currents. This load feeder combines motor protection, switching, and control functions into a single compact unit, saving space and reducing wiring complexity. It is ideal for applications requiring reliable and efficient motor starting and protection.