Siemens 3VJ MCCB – Thermal Magnetic Trip Unit –
3VJ1112-7DB32-0AA0
The Siemens 3VJ1112-7DB32-0AA0 is a SENTRON 3VJ series
molded case circuit breaker (MCCB) designed for reliable protection of low-voltage
power distribution systems against overload and short-circuit faults.
It is widely used in industrial switchboards, PCC/MCC panels, OEM machinery,
commercial buildings, and infrastructure installations where dependable
circuit protection and stable performance are required.
This MCCB belongs to the 3VJ11 frame series and
features a thermal magnetic trip unit (ATFM – Adjustable Thermal Fixed
Magnetic), providing adjustable overload protection and fixed
magnetic short-circuit protection for safe and coordinated electrical
system operation.
With a rated current of 125A and a breaking
capacity of 55kA at 415V AC, it is suitable for medium-duty industrial
and commercial power distribution systems requiring high fault interruption
capability and reliable protection.
Key Features
|
Parameter |
Specification |
|
Product Model |
3VJ1112-7DB32-0AA0 |
|
Brand |
Siemens |
|
Series |
SENTRON 3VJ |
|
Type |
MCCB (Molded Case Circuit Breaker) |
|
Trip Unit |
ATFM (Adjustable Thermal Fixed Magnetic) |
|
Rated Current |
125 A |
|
Number of Poles |
3 Pole |
|
Breaking Capacity (Icu) |
55 kA @ 415 V AC |
|
Ics |
75% of Icu |
|
Overload Protection |
Adjustable thermal |
|
Short-Circuit Protection |
Fixed magnetic |
|
Frame Size |
3VJ11 |
|
Rated Operational Voltage |
Up to 690 V AC |
|
Frequency |
50/60 Hz |
|
Mounting Type |
Fixed mounting |
|
Connection Type |
Screw terminal |
|
Standards |
IEC 60947-2 |
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