The Siemens 3VJ1220-4DB32-0AA0 is a SENTRON 3VJ1 series Molded Case Circuit Breaker (MCCB) designed for dependable protection of low-voltage electrical distribution systems against overload and short-circuit faults. This 3-pole MCCB is equipped with an Adjustable Thermal Fixed Magnetic (ATFM) trip unit, providing accurate overload protection and reliable fault interruption for industrial and commercial power distribution applications.
Built on the 3VJ12 frame size (250A class), this MCCB offers a rated current of 200A and a breaking capacity of 25kA at 415V AC. It is widely used in LT panels, PCC panels, MCC systems, feeder circuits, and industrial power distribution networks where safety, durability, and operational reliability are essential.
• Siemens SENTRON 3VJ1 series MCCB
• Part Number: 3VJ1220-4DB32-0AA0
• 3-pole molded case circuit breaker
• Adjustable Thermal Fixed Magnetic (ATFM) trip unit
• Rated current: 200A
• Frame size: 3VJ12 / 250A class
• Adjustable overload protection: 160A–200A
• Fixed magnetic short-circuit protection (10 × In)
• Breaking capacity: 25kA at 415V AC
• Rated operational voltage: 415V AC
• Screw terminal connection
• Fixed mounting execution
• Compact industrial design for panel installation
• High mechanical and electrical endurance
• Reliable overload and short-circuit protection
• 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 3VJ1 |
| Part Number | 3VJ1220-4DB32-0AA0 |
| Product Type | MCCB (Molded Case Circuit Breaker) |
| Number of Poles | 3 Pole |
| Rated Current (In) | 200A |
| Trip Unit Type | Adjustable Thermal Fixed Magnetic (ATFM) |
| Overload Protection | Adjustable (160A–200A) |
| Short Circuit Protection | Fixed Magnetic (10 × In) |
| Breaking Capacity (Icu) | 25kA at 415V AC |
| Frame Size | 3VJ12 / 250A Class |
| Rated Operational Voltage | 415V AC |
| Mounting Type | Fixed Mounting |
| Connection Type | Screw Terminal |
| Standard Compliance | IEC 60947-2 |
| Insulation Voltage | 1000V |
| Frequency | 50/60 Hz |
| Mechanical Life | Up to 15,000 Operations |
| Application | LT Panels, PCC Panels, MCC Systems, Feeder Protection, Industrial Power Distribution |
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