SENTRON 3VM, Thermal Magnetic Trip Unit - 3VM1140-4EE32-0AA0

Product Description

Siemens SENTRON 3VM MCCB – Thermal Magnetic Trip Unit – 3VM1140-4EE32-0AA0

The Siemens 3VM1140-4EE32-0AA0 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 widely used in industrial switchboards, MCC panels, and feeder distribution systems where reliable protection and compact design are required.

This model belongs to the 3VM1 Frame 160 series and is equipped with a thermal magnetic trip unit (TM220 / ATFM – Adjustable Thermal, Fixed Magnetic). It provides adjustable overload protection and fixed instantaneous short-circuit protection, enabling better coordination with downstream protection devices and connected loads. 

With a rated current of 40 A and a breaking capacity of 36 kA at 415 V AC, it is suitable for industrial and commercial LT distribution systems where medium-to-high fault-level protection is required. 

Key Features:

• Siemens SENTRON 3VM MCCB (Frame 160 series) 

• Thermal Magnetic (TM220 / ATFM) trip unit 

• Adjustable overload protection 

• Fixed instantaneous short-circuit protection 

• 3-pole configuration 

• Rated current: 40 A 

• Breaking capacity: 36 kA at 415 V AC 

• Overload adjustment range: 28–40 A 

• Compact industrial MCCB design 

• Front connection / fixed mounting design 

• IEC 60947-2 compliant