The Siemens 3VJ1340-4EB42-0AA0 is a robust SENTRON 3VJ Molded Case Circuit Breaker (MCCB) engineered for reliable protection of low-voltage power distribution systems. Designed with a 4-pole configuration and a rated current of 400A, this MCCB provides dependable overload and short-circuit protection for industrial, commercial, and infrastructure applications. Featuring an Adjustable Thermal Magnetic (ATFM) trip unit with LI protection functions, it ensures accurate fault detection and system protection. Its compact frame size, high mechanical endurance, and compliance with IEC standards make it ideal for use in distribution panels, motor control centers, generator systems, and electrical switchboards.
• Siemens SENTRON 3VJ Series MCCB
• Part Number: 3VJ1340-4EB42-0AA0
• 4-Pole Molded Case Circuit Breaker
• Rated current: 400A
• Frame Size: 3VJ13
• Adjustable Thermal Magnetic (ATFM) Trip Unit
• LI Protection Functions (Overload & Short Circuit)
• Adjustable overload protection setting from 320A to 400A
• Short-circuit protection set at 10 × In
• High breaking capacity for industrial applications
• Rated operational voltage: 415V AC
• Rated insulation voltage: 1000V
• Front connection design with lug terminals
• Compact and rugged construction
• High mechanical and electrical endurance
• Suitable for power distribution and feeder protection
• Easy installation and maintenance
• Complies with IEC 60947-2 standards
• Long service life and reliable performance
• Ideal for PCC Panels, MCC Panels, Generator Panels, and Industrial Switchboards.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3VJ |
| Part Number | 3VJ1340-4EB42-0AA0 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Number of Poles | 4 Pole |
| Rated Current (In) | 400A |
| Frame Size | 3VJ13 |
| Trip Unit Type | Adjustable Thermal Magnetic (ATFM) |
| Protection Functions | LI (Overload & Short Circuit Protection) |
| Overload Setting (Ir) | 320A – 400A |
| Instantaneous Trip Setting (Ii) | 10 × In |
| Rated Operational Voltage (Ue) | 415V AC |
| Rated Insulation Voltage (Ui) | 1000V |
| Breaking Capacity (Icu) | 25kA @ 415V AC |
| Service Breaking Capacity (Ics) | 75% of Icu |
| Frequency | 50/60 Hz |
| Connection Type | Front Connection, Lug Terminal |
| Mechanical Life | Up to 15,000 Operations |
| Electrical Life | Up to 5,000 Operations |
| Protection Class | IP42 (Front Face) |
| Standard Compliance | IEC 60947-2 |
| Application | Power Distribution, PCC Panels, MCC Panels, Generator Protection, Industrial Switchboards |
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