MV Series Vacuum Circuit Breaker (VCB)
Medium-Voltage Vacuum Circuit Breaker for Indoor Switchgear
Overview
The MV Series Vacuum Circuit Breaker (VCB) by Arian Kelid Pars is a high-performance medium voltage switching device designed for reliable protection and switching of electrical power distribution systems.
Manufactured under the technology license of MELCOS, the MV Series VCB incorporates advanced Vacuum Interruption and Embedded Pole Technology to provide exceptional electrical performance, high operational reliability, compact dimensions, and an extended service life.
The vacuum interruption system eliminates the need for insulating gas, reducing maintenance requirements while eliminating the risk of gas leakage. The MV Series Vacuum Circuit Breaker is ideally suited for medium-voltage switchgear, substations, industrial facilities, and critical power distribution applications operating under demanding environmental conditions.
The circuit breaker is available in both Frontal Connection and Lateral Connection configurations and is offered in the following voltage classes:
* MV7.2
* MV12
* MV24
* MV36
Key Features of Arian Kelid VCB :
* Vacuum Circuit Breaker (VCB) technology
* Advanced Embedded Pole Technology
* Compact and space-saving design
* IEC Mechanical Class M2
* IEC Electrical Endurance Class E2
* Up to 10,000 mechanical switching operations
* High operational reliability and safety
* Ideal for medium-voltage switchgear and substations
* Stable performance under demanding environmental conditions
* Reduced maintenance requirements
* SF6-free operation with zero gas leakage risk
Applications
The MV Series Vacuum Circuit Breaker (VCB) is suitable for:
* Medium-voltage switchgear
* Utility substations
* Urban and industrial power distribution networks
* Power generation plants
* Oil, Gas & Petrochemical facilities
* Infrastructure projects
* Industrial plants
* Commercial power distribution systems
Connection Type
* Frontal Type
* Lateral Type
Voltage Ratings
* MV7.2
* MV12
* MV24
* MV36
| 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 |