SENTRON 3VA MCCB, Microprocessor Trip Unit - 3VA2225-4HM42-0AA0

Product Description

SENTRON 3VA MCCB, Microprocessor Trip Unit – 3VA2225-4HM42-0AA0

The Siemens 3VA2225-4HM42-0AA0 is a Molded Case Circuit Breaker (MCCB) from the SENTRON 3VA2 series, designed for intelligent and reliable protection of low-voltage electrical distribution systems. It uses an advanced electronic microprocessor-based trip unit (ETU330 – LIG protection) that ensures accurate protection against overload, short-circuit, and earth fault conditions, improving system safety and selectivity in industrial and commercial networks.

This MCCB belongs to the 3VA22 frame size (250 A class) and features a 4-pole configuration, making it suitable for three-phase + neutral distribution systems. It is widely used in PCC panels, MCC panels, HVAC systems, OEM machinery, commercial buildings, and infrastructure power distribution systems, where reliable fault protection and stable operation are required.

The breaker offers a breaking capacity of 36 kA at 415 V AC, making it suitable for medium-duty industrial applications with high fault levels and ensuring safe interruption of fault currents.

🔹 Key Features

• Siemens SENTRON 3VA2 series MCCB
• Part Number: 3VA2225-4HM42-0AA0
• Microprocessor-based electronic trip unit (ETU330 – LIG)
• Rated current: 250 A
• 4-pole configuration (3P + N)
• Breaking capacity: 36 kA @ 415 V AC
• Adjustable protection settings (Ir, Isd, Ii, Ig)
• Overload, short-circuit & earth fault protection
• High selectivity and coordination capability
• Compact molded case design
• High electrical & mechanical endurance
• Suitable for industrial & commercial LT systems
• Complies with IEC 60947-2 standards