SENTRON 3VA MCCB, Thermal Magnetic Trip Unit - 3VA1120-5MH32-0AA0

Product Description

SENTRON 3VA MCCB with Thermal Magnetic Trip Unit – 3VA1120-5MH32-0AA0

The Siemens 3VA1120-5MH32-0AA0 is a Molded Case Circuit Breaker (MCCB) from the SENTRON 3VA1 series, designed for reliable protection of low-voltage electrical distribution systems against overload and short-circuit faults. This 3-pole MCCB is equipped with a Thermal Magnetic Trip Unit (TM120M / AM type), making it suitable for starter protection and feeder circuits where fixed protection settings and high breaking capacity are required.

It is widely used in LT panels, MCC/PCC systems, motor feeder circuits, and industrial distribution boards, ensuring safe isolation and dependable fault interruption.

Key Features:

• Siemens SENTRON 3VA1 series MCCB 

• Part Number: 3VA1120-5MH32-0AA0 

• 3-pole molded case circuit breaker 

• Thermal Magnetic Trip Unit (TM120M / AM type) 

• Rated current: 20A 

• IEC Frame Size 160 design 

• Starter protection configuration 

• Fixed short-circuit protection (Ii approx. 7–16 × In) 

• High breaking capacity: 55kA at 415V AC 

• Suitable for motor starter and feeder protection 

• Compact industrial-grade construction 

• Reliable overload and short-circuit protection 

• Screw / lug terminal connection (variant dependent) 

• High electrical and mechanical endurance 

• Designed as per IEC 60947-2 standards 

• Maintenance-free operation