SENTRON 3VM, Thermal Magnetic Trip Unit - 3VM1120-5MH32-0AA0

Product Description

Siemens SENTRON 3VM MCCB – Thermal Magnetic Trip Unit – 3VM1120-5MH32-0AA0

The Siemens 3VM1120-5MH32-0AA0 is a SENTRON 3VM1 series molded case circuit breaker (MCCB) designed for protection of low-voltage electrical distribution systems against overload and short-circuit faults. It is commonly used in industrial switchboards, MCC panels, and feeder distribution systems where reliable performance and compact construction are required.

This model belongs to the 3VM1 Frame 160 series and is equipped with a thermal magnetic trip unit (TM120M – starter protection type, ATFM/AM characteristic). It is mainly designed for starter/motor protection applications, where short-circuit protection is provided along with controlled overload protection.

With a rated current of 20 A and a high breaking capacity of 55 kA at 415 V AC, it offers strong fault interruption capability suitable for demanding industrial environments. 

Key Features:

• Siemens SENTRON 3VM MCCB (Frame 160 series) 

• Thermal Magnetic (TM120M) protection system 

• Starter / motor protection application type 

• 3-pole configuration 

• Rated current: 20 A 

• High breaking capacity: 55 kA at 415 V AC 

• Fixed short-circuit protection with high fault endurance 

• Compact industrial MCCB design 

• Suitable for motor starter protection circuits 

• IEC 60947-2 compliant