3VA5340-5EC31-0AA0 | Siemens 3VA53 400A 3-Pole Thermal-Magnetic Molded Case Circuit Breaker New 1-wire connection system: simplifies wiring

1-wire connection system: simplifies wiring and supports rapid installation in distributed I/O assemblies

and discrete components for processing drive logic

and status monitoring without interrupting the analog signal

Reliability for Automation: Designed for PLCs

3VA5340-5EC31-0AA0 | Siemens 3VA53 400A 3-Pole Thermal-Magnetic Molded Case Circuit Breaker New 1-wire connection system: simplifies wiringDescription The Siemens 3VA5340 5EC31 0AA0 is a low voltage molded case circuit breaker rated for 400A and designed to protect electrical distribution systems up to 600VAC and 500VDC. It features a thermal magnetic trip unit that provides reliable overload and short circuit protection across industrial and commercial installations. With interrupt ratings up to 85 kA and an IP40 enclosure, this breaker offers durable system protection in demanding