The Siemens 3VJ1220-7EB42-0AA0 is a SENTRON 3VJ series Molded Case Circuit Breaker (MCCB) designed to provide reliable protection against overload and short-circuit faults in low-voltage power distribution systems. This 4-pole MCCB is equipped with an Adjustable Thermal Fixed Magnetic (ATFM) Trip Unit, offering dependable circuit protection and enhanced operational safety for industrial and commercial applications.
Built on the 3VJ12 frame size (250A class), this MCCB has a rated current of 200A and a high breaking capacity of 55kA at 415V AC. It is widely used in LT distribution panels, PCC panels, MCC systems, feeder circuits, and industrial power distribution networks where high fault protection and long-term reliability are essential.
• Siemens SENTRON 3VJ series MCCB
• Part Number: 3VJ1220-7EB42-0AA0
• 4-pole molded case circuit breaker
• Adjustable Thermal Fixed Magnetic (ATFM) Trip Unit
• Rated current: 200A
• Frame size: 3VJ12 / 250A class
• Overload protection: adjustable (160A–200A)
• Short-circuit protection: fixed magnetic (10 × In)
• High breaking capacity: 55kA at 415V AC
• Service breaking capacity (Ics): 75% of Icu
• Screw terminal connection
• Fixed mounting execution
• Compact and rugged industrial design
• High mechanical and electrical endurance
• Suitable for industrial and commercial power distribution systems
• Complies with IEC 60947-2 standards
• Ideal for LT panels, PCC panels, MCC systems, and feeder protection applications
| Parameter | Specification |
|---|---|
| Product Series | Siemens SENTRON 3VJ |
| Part Number | 3VJ1220-7EB42-0AA0 |
| Product Type | MCCB (Molded Case Circuit Breaker) |
| Number of Poles | 4 Pole |
| Rated Current (In) | 200A |
| Trip Unit Type | Adjustable Thermal Fixed Magnetic (ATFM) |
| Overload Protection (Ir) | Adjustable 160A – 200A |
| Short Circuit Protection (Ii) | Fixed Magnetic, 10 × In |
| Breaking Capacity (Icu) | 55kA at 415V AC |
| Service Breaking Capacity (Ics) | 75% of Icu |
| Frame Size | 3VJ12 / 250A Class |
| Rated Operational Voltage | 415V AC |
| Mounting Type | Fixed Mounting |
| Connection Type | Screw Connection |
| Standard Compliance | IEC 60947-2 |
| Frequency | 50/60 Hz |
| Protection Function | Overload & Short Circuit Protection |
| Application | LT Panels, PCC Panels, MCC Systems, Feeder Protection, Industrial Power Distribution |
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