Siemens SENTRON 3VM1112-3ED42-0AA0 – Thermal Magnetic Trip Unit MCCB
The Siemens 3VM1112-3ED42-0AA0 is a high-performance SENTRON 3VM molded case circuit breaker (MCCB) designed for dependable overload and short-circuit protection in industrial and commercial low-voltage power distribution systems. This 4-pole MCCB is equipped with a TM220 thermal magnetic trip unit featuring adjustable overload protection and fixed magnetic short-circuit protection for reliable circuit safety and operational continuity.
Built on the Siemens 3VM1 IEC Frame 160 platform, the breaker offers a breaking capacity of 25kA at 415V AC and includes 100% neutral conductor protection, making it suitable for switchboards, MCC panels, industrial automation systems, and OEM machinery applications. Its compact fixed-mount construction with front terminal connection ensures easy installation and reliable long-term operation.
Key Features:
• SENTRON 3VM molded case circuit breaker
• TM220 thermal magnetic trip unit
• 4-pole protection configuration
• Rated current: 125A
• Adjustable overload protection
• Fixed short-circuit protection
• 25kA breaking capacity at 415V AC
• 100% neutral conductor protection
• Compact IEC Frame 160 design
• Front terminal connection
• High operational reliability
• Suitable for industrial power distribution systems
Technical Specifications
|
Parameter |
Specification |
|
Product Model |
3VM1112-3ED42-0AA0 |
|
Brand |
Siemens |
|
Product Series |
SENTRON 3VM |
|
Product Type |
Molded Case Circuit Breaker
(MCCB) |
|
Trip Unit Type |
TM220 Thermal Magnetic |
|
Protection Function |
LI (Overload + Short Circuit) |
|
Number of Poles |
4 Pole |
|
Rated Current (In) |
125 A |
|
Adjustable Overload Setting
(Ir) |
87.5–125 A |
|
Instantaneous Trip Setting (Ii) |
10 × In |
|
Frame Size |
160 Frame |
|
Breaking Capacity (Icu) |
25 kA at 415V AC |
|
Rated Operational Voltage (Ue) |
Up to 690 V AC |
|
Rated Insulation Voltage (Ui) |
800 V |
|
Frequency |
50/60 Hz |
|
Neutral Protection |
100% |
|
Mounting Type |
Fixed Mounting |
|
Connection Type |
Front Connection |
|
Protection Class |
IP40 |
|
Mechanical Life |
Approx. 15,000 Operations |
|
Electrical Life |
Approx. 6,000 Operations |
|
Standards |
IEC 60947-2 |
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