SENTRON 3VA MCCB, Thermal Magnetic Trip Unit - 3VA1140-3GE42-0AA0

Product Description

Siemens SENTRON 3VA MCCB, Thermal Magnetic Trip Unit – 3VA1140-3GE42-0AA0

The Siemens 3VA1140-3GE42-0AA0 is a SENTRON 3VA1 series Molded Case Circuit Breaker (MCCB) designed for reliable protection of low-voltage electrical distribution systems against overload and short-circuit faults. This 4-pole MCCB is equipped with a Thermal Magnetic Trip Unit (TM220 / ATFM type), offering adjustable overload protection and fixed instantaneous short-circuit protection, making it suitable for industrial and commercial power distribution applications.

It is widely used in LT panels, MCC/PCC systems, feeder circuits, and infrastructure electrical networks, where stable protection and high fault interruption capability are required.

Key Features:

• Siemens SENTRON 3VA1 series MCCB
• Part Number: 3VA1140-3GE42-0AA0
• 4-pole molded case circuit breaker
• Thermal Magnetic Trip Unit (TM220 / ATFM)
• Rated current: 40A
• Frame size: IEC Frame 160
• Adjustable overload protection: Ir ≈ 28–40A
• Fixed short-circuit protection: Ii ≈ 10 × In
• Breaking capacity: 25kA at 415V AC
• Rated operational voltage up to 690V AC
• Neutral protection (100% rated neutral conductor)
• High electrical and mechanical endurance
• Compact and robust industrial MCCB design
• Suitable for feeder and distribution protection
• Screw / lug terminal connection (variant dependent)
• Complies with IEC 60947-2 standards