The Siemens 3VJ1340-3EB42-0AA0 is a high-performance SENTRON 3VJ Molded Case Circuit Breaker (MCCB) designed for reliable protection of low-voltage electrical distribution systems. This 4-pole MCCB is rated at 400A and features an Adjustable Thermal Magnetic (ATFM) trip unit that provides dependable overload and short-circuit protection. With a breaking capacity of 25kA at 415V AC, the breaker is suitable for industrial, commercial, and infrastructure applications where system safety and operational continuity are critical. Its compact design, robust construction, and adjustable protection settings make it ideal for MCC panels, PCC panels, distribution boards, motor protection circuits, and power distribution networks.
• Siemens SENTRON 3VJ Series MCCB
• Part Number: 3VJ1340-3EB42-0AA0
• 4-Pole configuration
• Rated current: 400A
• Frame Size: 3VJ13 (FS3)
• Adjustable Thermal Magnetic (ATFM) Trip Unit
• Adjustable overload protection (Ir: 320A–400A)
• Instantaneous short-circuit protection (Ii = 10 × In)
• Breaking Capacity (Icu): 25kA at 415V AC
• Service Breaking Capacity (Ics): 75% of Icu
• Line protection application
• Front connection with screw terminals
• Compact and rugged industrial design
• High mechanical durability up to 15,000 operations
• Electrical endurance up to 5,000 operations
• Rated insulation voltage: 1000V
• Suitable for industrial and commercial power distribution systems
• Complies with IEC 60947 standards
• Easy installation and maintenance
• Reliable protection against overload and short-circuit faults
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3VJ |
| Part Number | 3VJ1340-3EB42-0AA0 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Frame Size | 3VJ13 (FS3) |
| Number of Poles | 4 Pole |
| Rated Current (In) | 400A |
| Trip Unit Type | Adjustable Thermal Magnetic (ATFM) |
| Protection Functions | Overload & Short Circuit Protection |
| Adjustable Overload Setting (Ir) | 320A – 400A |
| Instantaneous Trip Setting (Ii) | 10 × In |
| Breaking Capacity (Icu) | 25kA at 415V AC |
| Service Breaking Capacity (Ics) | 18.75kA (75% of Icu) |
| Rated Operational Voltage (Ue) | 415V AC |
| Rated Insulation Voltage (Ui) | 1000V |
| Connection Type | Screw Connection |
| Mounting | Fixed Mounting |
| Mechanical Life | 15,000 Operations |
| Electrical Life | 5,000 Operations |
| Protection Class | IP42 (Front Face) |
| Operating Temperature | -10°C to +60°C |
| Standard Compliance | IEC 60947 |
| Application | MCC Panels, PCC Panels, Distribution Boards, Motor Protection, Power Distribution Systems |
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