Siemens SENTRON 3VM1112-3EE32-0AA0 – Thermal Magnetic Trip Unit MCCB
The Siemens 3VM1112-3EE32-0AA0 is a high-performance SENTRON 3VM molded case circuit breaker (MCCB) designed for reliable overload and short-circuit protection in industrial and commercial low-voltage power distribution systems. It belongs to the 3VM1 IEC Frame 160 series and is widely used in switchboards, MCC panels, and OEM electrical systems where dependable protection and high breaking capacity are required.
This model is equipped with a TM220 thermal magnetic trip unit, offering adjustable thermal overload protection and fixed instantaneous short-circuit protection. It ensures safe interruption of fault currents while maintaining stable operation under normal load conditions. The breaker is designed for 3-pole applications with robust industrial-grade construction for long service life.
It offers a breaking capacity of 25 kA at 415 V AC, making it suitable for medium industrial loads, motor feeders, and distribution circuits. The adjustable thermal range allows better coordination with downstream protection devices.
Key Features:
• SENTRON 3VM molded case circuit breaker
• TM220 thermal magnetic trip unit
• 3-pole protection system
• Rated current: 125 A
• Adjustable overload protection (approx. 88–125 A)
• Fixed magnetic short-circuit protection (approx. 10 × In)
• Breaking capacity: 25 kA at 415 V AC
• IEC Frame 160 compact design
• Front connection terminal system
• High reliability for industrial applications
• Suitable for MCC, PCC, and distribution boards
• Long mechanical and electrical life
Technical Specifications
|
Parameter |
Specification |
|
Product Model |
3VM1112-3EE32-0AA0 |
|
Brand |
Siemens |
|
Product Series |
SENTRON 3VM |
|
Product Type |
Molded Case Circuit Breaker (MCCB) |
|
Trip Unit |
TM220 Thermal Magnetic |
|
Number of Poles |
3 Pole |
|
Rated Current (In) |
125 A |
|
Overload Setting (Ir) |
88–125 A (adjustable) |
|
Short-Circuit Setting (Ii) |
10 × In |
|
Frame Size |
160 |
|
Breaking Capacity (Icu) |
25 kA at 415 V AC |
|
Rated Insulation Voltage (Ui) |
800 V |
|
Rated Operational Voltage (Ue) |
Up to 690 V AC |
|
Frequency |
50/60 Hz |
|
Mounting Type |
Fixed mounting |
|
Connection Type |
Front terminal |
|
Protection Class |
IP40 |
|
Mechanical Life |
~15,000 operations |
|
Electrical Life |
~6,000 operations |
|
Weight |
~1.0 kg |
|
Standards |
IEC 60947-2 |
|
Product Status |
Active |
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