3VJ MCCB, Thermal Magnetic Trip Unit - 3VJ1225-4DB32-0AA0

Product Description

3VJ MCCB, Thermal Magnetic Trip Unit – 3VJ1225-4DB32-0AA0

The Siemens 3VJ1225-4DB32-0AA0 is a Molded Case Circuit Breaker (MCCB) from the 3VJ1 series, designed for dependable protection of low-voltage electrical distribution systems. It uses a thermal magnetic trip unit (ATFM) to provide reliable protection against overload and short-circuit faults, ensuring safe operation of cables, switchboards, and connected electrical equipment.

This MCCB is commonly used in industrial power distribution panels, commercial switchboards, OEM machinery, and infrastructure electrical systems, where stable performance and compact design are required.

According to Siemens technical specifications, the 3VJ12 frame (250 A class) offers a breaking capacity of 25 kA at 415 V AC, with adjustable thermal overload settings and fixed magnetic short-circuit protection, making it suitable for medium-duty industrial applications.

🔹 Key Features

• Siemens 3VJ1 series MCCB
• Part Number: 3VJ1225-4DB32-0AA0
• Thermal Magnetic Trip Unit (ATFM)
• Rated current: 250 A
• 3-pole configuration
• Breaking capacity: 25 kA @ 415 V AC
• Adjustable overload protection (Ir setting)
• Fixed short-circuit magnetic protection (Ii setting)
• Compact molded case design for panel optimization
• Screw-type terminal connections for secure wiring
• High electrical and mechanical endurance
• Suitable for LT switchboards and distribution systems
• Complies with IEC 60947-2 standards