Siemens 3VJ MCCB, Thermal Magnetic Trip Unit – 3VJ1105-7DB32-0AA0
The Siemens 3VJ1105-7DB32-0AA0 is a SENTRON 3VJ series Molded Case Circuit Breaker (MCCB) designed for reliable protection of low-voltage electrical distribution systems against overload and short-circuit faults. This 3-pole MCCB uses a Thermal Magnetic Trip Unit (ATFM type) and is suitable for industrial feeder and distribution applications where higher fault levels and stable protection are required.
It is widely used in LT panels, MCC/PCC systems, industrial distribution boards, HVAC systems, and infrastructure installations, ensuring safe operation and dependable power distribution.
Key Features:
• Siemens SENTRON 3VJ series MCCB
• Part Number: 3VJ1105-7DB32-0AA0
• 3-pole molded case circuit breaker
• Thermal Magnetic Trip Unit (ATFM type)
• Rated current: 50A
• Frame size: 125AF
• Adjustable overload protection (Ir: 40–50A)
• Fixed magnetic short-circuit protection (Ii approx. 600A)
• High breaking capacity: 55kA at 415V AC
• Rated operational voltage: 415V AC
• Compact industrial-grade construction
• Screw terminal connection
• High electrical and mechanical endurance
• Suitable for feeder and line protection
• Complies with IEC 60947-2 standards
|
Parameter |
Specification |
|
Product Series |
Siemens SENTRON 3VJ |
|
Part Number |
3VJ1105-7DB32-0AA0 |
|
Product Type |
MCCB (Molded Case Circuit Breaker) |
|
Number of Poles |
3 Pole |
|
Rated Current (In) |
50A |
|
Trip Unit Type |
Thermal Magnetic (ATFM) |
|
Overload Protection |
Adjustable (40–50A) |
|
Short Circuit Protection |
Fixed Magnetic |
|
Breaking Capacity (Icu) |
55kA at 415V AC |
|
Service Breaking Capacity (Ics) |
~75% of Icu |
|
Rated Operational Voltage |
415V AC |
|
Frame Size |
125AF |
|
Mounting Type |
Fixed mounting |
|
Connection Type |
Screw terminal |
|
Standard Compliance |
IEC 60947-2 |
|
Application |
LT panels, MCC/PCC systems, industrial feeders |
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