3VJ1340-7EB42-0AA0 | MCCB 400 A, 4 Pole, 55 kA, Adjustable O/L & Fixed S/C Settings, Thermal Magnetic Trip Unit (ATFM) – Siemens

The 3VJ1340-7EB42-0AA0 is a high-performance Molded Case Circuit Breaker (MCCB) manufactured by Siemens, designed for reliable and efficient electrical protection in industrial and commercial applications. This MCCB is rated for a current of 400 A and features a 4-pole configuration, making it suitable for three-phase systems with neutral protection.

With a breaking capacity of 55 kA, this circuit breaker ensures robust protection against short-circuit currents, safeguarding electrical systems and equipment from damage. The Thermal Magnetic Trip Unit (ATFM) provides precise and reliable tripping characteristics, combining thermal overload protection with magnetic short-circuit protection.

The adjustable overload (O/L) settings allow for customization based on specific application requirements, while the fixed short-circuit (S/C) settings ensure consistent and dependable protection against high fault currents. This MCCB is ideal for use in distribution panels, motor control centers, and other critical electrical systems where safety and reliability are paramount.

Key Features:

• Rated Current: 400 A
• Number of Poles: 4
• Breaking Capacity: 55 kA
• Trip Unit: Thermal Magnetic (ATFM)
• Overload Protection: Adjustable
• Short-Circuit Protection: Fixed
• Brand: Siemens

The Siemens 3VJ1340-7EB42-0AA0 MCCB is engineered to meet the highest standards of quality and performance, ensuring long-lasting durability and optimal protection for your electrical systems.