Siemens 3VJ MCCB – Thermal Magnetic Trip Unit –
3VJ1112-5DB32-0AA0
The Siemens 3VJ1112-5DB32-0AA0 is a SENTRON 3VJ
series molded case circuit breaker (MCCB) designed for dependable
protection of low-voltage electrical distribution systems against
overload and short-circuit faults. It is widely used in industrial
switchboards, PCC/MCC panels, OEM machinery, commercial electrical systems, and
infrastructure applications where reliable power protection and operational
safety are essential. The breaker features a thermal magnetic trip unit
(ATFM – Adjustable Thermal Fixed Magnetic) that provides adjustable
overload protection and fixed magnetic short-circuit protection for improved
system coordination.
This MCCB belongs to the 3VJ11 IEC frame size and
comes with a 3-pole configuration, making it suitable for three-phase
industrial and commercial power distribution applications. It offers a rated
current of 125A and a breaking capacity of 36kA at 415V AC, ensuring
reliable interruption of fault currents in demanding environments.
Key Features
|
Parameter |
Specification |
|
Product Model |
3VJ1112-5DB32-0AA0 |
|
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) |
36 kA @ 415 V AC |
|
Ics |
75% of Icu |
|
Overload Protection Range |
100A – 125A |
|
Short-Circuit Protection |
Fixed magnetic trip (Ii = 10 × In) |
|
Frame Size |
3VJ11 |
|
Rated Operational Voltage |
Up to 690 V AC |
|
Mounting Type |
Fixed mounting |
|
Connection Type |
Screw connection |
|
Frequency |
50/60 Hz |
|
Standards |
IEC 60947-2 |
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