Siemens 3VJ10 MCCB – Thermal Magnetic Trip Unit – 3VJ1003-3DB32-0AA0
The Siemens 3VJ1003-3DB32-0AA0 is a SENTRON 3VJ10 series molded case circuit breaker (MCCB) designed for protection of low-voltage electrical distribution systems against overload and short-circuit faults. It is widely used in industrial switchboards, MCC panels, and OEM distribution systems where compact design and reliable protection are required.
This model belongs to the 3VJ10 frame class (125 A platform) and is equipped with a thermal magnetic trip unit (ATFM – Adjustable Thermal, Fixed Magnetic), providing adjustable overload protection (Ir: 25.6–32 A) and fixed instantaneous short-circuit protection (Ii ~550 A) for precise coordination with downstream devices.
With a rated current of 32 A and a breaking capacity of 25 kA at 415 V AC, it is suitable for industrial and commercial power distribution systems with medium fault level requirements.
Key Features:
• Siemens SENTRON 3VJ10 MCCB
• Thermal Magnetic (ATFM) protection system
• Adjustable overload + fixed short-circuit protection
• 3-pole configuration
• Rated current: 32 A
• Breaking capacity: 25 kA at 415 V AC
• Overload setting range: 25.6–32 A
• Short-circuit setting: ~550 A fixed
• Compact industrial MCCB design
• Suitable for feeder and distribution protection
• IEC 60947-2 compliant
|
Parameter |
Specification |
|
Product Model |
3VJ1003-3DB32-0AA0 |
|
Brand |
Siemens |
|
Series |
SENTRON 3VJ10 |
|
Type |
MCCB (Molded Case Circuit Breaker) |
|
Trip Unit |
ATFM (Thermal Magnetic) |
|
Rated Current |
32 A |
|
Number of Poles |
3 Pole |
|
Breaking Capacity (Icu) |
25 kA @ 415 V AC |
|
Overload Setting (Ir) |
25.6–32 A |
|
Short-Circuit Setting (Ii) |
~550 A fixed |
|
Frame Size |
3VJ10 (125 A platform) |
|
Rated Voltage |
415 V AC |
|
Frequency |
50/60 Hz |
|
Mounting Type |
Fixed mounting |
|
Connection Type |
Screw terminal |
|
Standards |
IEC 60947-2 |
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