Siemens 3VJ1 MCCB 200A, 3-Pole, 36kA, Frame 250, ATFM Trip Unit – 3VJ1220-5DB32-0AA0
The Siemens 3VJ1220-5DB32-0AA0 Molded Case Circuit Breaker (MCCB) is a 3-pole, IEC Frame Size 3VJ12 (250 A frame) circuit breaker designed for dependable line protection in industrial and commercial low-voltage distribution systems. It features a 200 A rated current (In), 36 kA breaking capacity (Icu) at 415 V AC, and 75% service breaking capacity (Ics). Equipped with an ATFM thermal-magnetic trip unit, the breaker offers adjustable overload protection (Ir) from 160 A to 200 A and fixed short-circuit protection (Ii = 10 × In), ensuring reliable protection against overloads and short circuits.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | 3VJ1 |
| Model Number | 3VJ1220-5DB32-0AA0 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Frame Size | 3VJ12 (250 A Frame) |
| Number of Poles | 3 |
| Rated Current (In) | 200 A |
| Rated Operational Voltage (Ue) | 415 V AC |
| Rated Insulation Voltage (Ui) | 1000 V |
| Breaking Capacity (Icu) | 36 kA @ 415 V AC |
| Service Breaking Capacity (Ics) | 75% of Icu |
| Trip Unit | ATFM Thermal-Magnetic |
| Overload Protection (Ir) | Adjustable 160–200 A |
| Short-Circuit Protection (Ii) | Fixed at 10 × In |
| Protection Function | LI (Overload & Short Circuit) |
| Connection Type | Screw Connection |
| Degree of Protection | IP42 (Front) |
| Mechanical Endurance | 15,000 Operating Cycles |
| Electrical Endurance | 5,000 Operating Cycles (AC-1, 380/415 V) |
| Ambient Operating Temperature | -10°C to +60°C |
| Mounting | Fixed Mount |
| Net Weight | Approx. 1.99 kg |
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