3RA2220-4NF27-0BB4 SIEMENS

The 3RA2220-4NF27-0BB4 Siemens load feeder is a fuseless reversing starter designed for efficient motor control in industrial applications. It operates at 400 V AC and is suitable for reversing duty, providing reliable forward and reverse motor operation. This Size S0 load feeder is designed for a current range of 23.0 to 28.0 A, making it suitable for motors with corresponding power requirements. It utilizes a 24 V DC spring-type terminal for easy and secure electrical connections. The load feeder can be installed on a standard mounting rail with a standard mounting rail adapter, simplifying installation and integration into control panels. It meets the requirements for both Type of Coordination 1 and Type of Coordination 2, ensuring reliable protection and coordination with other components in the system. With a rated conditional short-circuit current (Iq) of 150 kA, it provides robust protection against short-circuit faults. The integrated contactor includes 1 NO (normally open) and 1 NC (normally closed) auxiliary contacts for additional control and monitoring capabilities. This load feeder offers a compact and efficient solution for motor starting and protection.