3VJ MCCB, Thermal Magnetic Trip Unit - 3VJ1225-5EA42-0AA0

Product Description

3VJ MCCB, Thermal Magnetic Trip Unit – 3VJ1225-5EA42-0AA0

The Siemens 3VJ1225-5EA42-0AA0 is a durable and efficient Molded Case Circuit Breaker (MCCB) from the 3VJ1 series, engineered for reliable protection of low-voltage electrical distribution systems. Equipped with a Thermal Magnetic Trip Unit (ATFM), it provides dependable protection against overload and short-circuit faults, helping ensure the safety of electrical panels, cables, and connected equipment.

This MCCB belongs to the 3VJ12 frame size (250 A class) and offers a high breaking capacity of 36 kA at 415 V AC, making it suitable for industrial and commercial applications requiring enhanced operational safety and stable performance. It is widely used in LT distribution panels, PCC/MCC systems, OEM machinery, HVAC applications, and infrastructure projects.

The compact molded case design and robust Siemens construction ensure long service life, reliable switching performance, and easy integration into modern power distribution systems.

🔹 Key Features

• Siemens 3VJ1 series MCCB
• Part Number: 3VJ1225-5EA42-0AA0
• Thermal Magnetic Trip Unit (ATFM)
• Rated current: 250 A
• 4-pole configuration
• Breaking capacity: 36 kA @ 415 V AC
• Adjustable overload protection (Ir setting)
• Fixed magnetic short-circuit protection
• Compact molded case construction
• High electrical and mechanical endurance
• Secure screw terminal connections
• Suitable for industrial LT distribution systems
• Complies with IEC 60947-2 standards