MVD Series Withdrawable Vacuum Circuit Breaker (VCB)
Withdrawable Medium-Voltage Vacuum Circuit Breaker
overview
The MVD Series Withdrawable Vacuum Circuit Breaker (VCB) by Arian Kelid Pars is a high-performance medium-voltage circuit breaker designed for withdrawable switchgear systems requiring maximum operational reliability, safety, and service continuity.
Manufactured under the technology license of MELCOS, the MVD Series VCB incorporates advanced Vacuum Interruption and Embedded Pole Technology, providing outstanding electrical performance, compact dimensions, extended service life, and minimal maintenance requirements.
The withdrawable design enables rapid replacement, simplified maintenance, and reduced downtime, making the MVD Series an ideal solution for critical power distribution systems where uninterrupted operation is essential.
Designed for demanding industrial applications, the MVD Series Vacuum Circuit Breaker delivers reliable switching performance under a wide range of environmental and operating conditions.
Withdrawable Vacuum Circuit Breaker (VCB) is available in the following voltage ratings:
* MVD7.2
* MVD12
* MVD24
* MVD36
Key Features of Arian Kelid MVD type VCB
* Withdrawable (Draw-out) Vacuum Circuit Breaker
* Designed for medium-voltage withdrawable switchgear
* Quick replacement and easy maintenance
* Reduced network downtime
* Vacuum Circuit Breaker (VCB) technology
* Advanced Embedded Pole Technology
* Compact and optimized design
* IEC Mechanical Class M2
* IEC Electrical Endurance Class E2
* Up to 10,000 mechanical switching operations
* High operational reliability and safety
* Suitable for demanding industrial environments
* Minimal maintenance requirements
* SF6-free operation with zero gas leakage risk
Applications
The MVD Series Withdrawable Vacuum Circuit Breaker is suitable for:
* Medium-voltage withdrawable switchgear
* Oil, Gas & Petrochemical facilities
* Steel and Cement industries
* Power generation plants
* Industrial substations
* Utility substations
* Critical power distribution systems
* Industrial plants
* Infrastructure projects
Available Models
* MVD7.2 Vacuum Circuit Breaker
* MVD12 Vacuum Circuit Breaker
* MVD24 Vacuum Circuit Breaker
* MVD36 Vacuum Circuit Breaker
| No. | Technical Parameter | Unit | 12kV | 24kV | 36kV |
| 1 | Rated Voltage | kV | 12 | 24 | 36 |
| 2 | Rated Frequency | Hz | 50/60 | 50/60 | 50/60 |
| 3 | Rated Current | A | 630 / 1250 / 1600 / 2500 / 3150 / 4000 | 630 / 1250 / 1600 / 2500 / 3150 / 4000 | 630 / 1250 / 1600 / 2500 / 3150 / 4000 |
| 4 | Rated Short-Circuit Breaking Current | kA | 20 / 25 / 31.5 / 40 | 20 / 25 / 31.5 / 40 | 20 / 25 / 31.5 / 40 |
| 5 | Rated Peak Withstand / Making Current | kA | 50 / 63 / 80 / 100 | 50 / 63 / 80 / 100 | 50 / 63 / 80 / 100 |
| 6 | Rated Short-Time Withstand Current | kA | 20 / 25 / 31.5 / 40 | 20 / 25 / 31.5 / 40 | 20 / 25 / 31.5 / 40 |
| 7 | Rated Short-Time Duration | s | 3 | 3 | 3 |
| 8 | Rated Operating Sequence | - | O-0.3s-CO-180s-CO | O-0.3s-CO-180s-CO | O-0.3s-CO-180s-CO |
| 9 | Power Frequency Withstand Voltage | kV | 42 | 50 | 75 |
| 10 | Lightning Impulse Withstand Voltage (BIL) | kV | 75 | 125 | 185 |
| 11 | Mechanical Life | Operations | 10,000 | 10,000 | 10,000 |
| 12 | Electrical Class | - | E2 | E2 | E2 |
| 13 | Mechanical Class | - | M2 | M2 | M2 |
| 14 | Average Closing Speed | m/s | 0.5-1.0 | 0.5-1.0 | 0.5-1.0 |
| 15 | Control Voltage | V AC/DC | 24 / 48 /110 / 220 | 24 / 48 /110 / 220 | 24 / 48 /110 / 220 |
| 16 | Installation Type | - | Fixed / Withdrawable | Fixed / Withdrawable | Fixed / Withdrawable |