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VBP-12M
Fenarro
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Equipped with the patented CKY permanent magnet actuator and a direct-drive transmission design, the VBP-12M delivers outstanding operational reliability and performance. Its structure ensures precise, stable, and efficient operation, making it especially suitable for frequent switching operations and multiple short-circuit breaking scenarios.
The circuit breaker can be equipped with a special propulsion mechanism, forming a withdrawable handcart unit, which enhances flexibility and ease of integration in indoor switchgear applications.
Indoor power distribution systems (12kV)
Industrial enterprises requiring frequent switching operations
Mining operations with high reliability demands
Power grid protection and control
Switchgear units with handcart structures
Permanent Magnet Actuator – Uses the patented CKY permanent magnet mechanism for superior reliability and stable performance.
Direct-Drive Design – Simplifies the structure, reduces failure points, and ensures efficient operation.
High Breaking Capacity – Capable of handling multiple short-circuit interruptions safely.
Long Service Life – High mechanical and electrical endurance, designed for frequent operation.
Compact Structure – Space-saving design for modern indoor switchgear applications.
Handcart Unit Compatibility – Easily combined with a dedicated propulsion mechanism for withdrawable operation.
Low Maintenance – Simplified structure and advanced materials reduce maintenance requirements.
| Serial No. | Item | Unit | Numerical Value | |||
|---|---|---|---|---|---|---|
| 1 | Rated Voltage | kV | 12 | |||
| 2 | Rated Short - time Power Frequency Withstand Voltage (min) | kV | 42 | |||
| 3 | Rated Lightning Impulse Withstand Voltage (Peak Value) | kV | 75 | |||
| 4 | Rated Frequency | Hz | 50 | |||
| 5 | Rated Current | A | 630 1250 | 630 1250 | 630,1250 | 1250,1600 2000,2500 3150,4000 |
| 6 | Rated Short - circuit Breaking Current | kA | 20 | 25 | 31.5 | 40 |
| 7 | Rated Short - time Withstand Current | kA | 20 | 25 | 31.5 | 40 |
| 8 | Rated Short - circuit Duration | s | 4 | |||
| 9 | Rated Peak Withstand Current | kA | 50 | 63 | 80 | 100 |
| 10 | Rated Short - circuit Making Current | kA | 50 | 63 | 80 | 100 |
| 11 | Power Frequency Withstand Voltage of Secondary Circuit (1min) | V | 2000 | |||
| 12 | Rated Single Back - to - Back Capacitor Bank Breaking Current | A | 630/400 (40kA is 800/400) | |||
| 13 | Rated Capacitor Bank Closing Inrush Current | kA | 12.5 (Frequency not greater than 100Hz) | |||
| 14 | Opening Time | ms | ≤50 | |||
| 15 | Closing Time | ms | ≤70 | |||
| 16 | Mechanical Life | times | 30000 | |||
| 17 | Number of Rated Current Breaking Operations | times | 30000 | |||
| 18 | Number of Rated Short - circuit Current Breaking Operations | times | 50 (30 for kA) | |||
| 19 | Allowable Cumulative Wear Thickness of Moving and Static Contacts | mm | 3 | |||
| 20 | Contact Opening Distance | mm | 9±1 (Above 1600A: 11±1) | |||
| 21 | Over - travel | mm | 3.5±0.5 | |||
| 22 | Contact Closing Rebound Time | ms | ≤2 (≤3 for 40kA) | |||
| 23 | Asynchronism of Three - phase Closing and Opening | ms | ≤2 | |||
| 24 | Average Opening Speed | m/s | 0.9 - 1.2 | |||
| 25 | Average Closing Speed | m/s | 0.5 - 0.8 | |||
| 26 | Contact Opening Rebound Value | mm | 0 | |||
| 27 | DC Loop Resistance of Main Circuit | μΩ | ≤40 (Below 1250A); ≤35 (1600 - 2000A); ≤25 (Above 2500A) | |||
| 28 | Contact Closing Contact Pressure | N | 200±200 (20kA); 2400±200 (25kA); 3100±200 (31.5kA); 4300±200 (40kA) | |||
| 29 | Rated Operating Sequence | - | Open - 0.3s Close & Separate - 180s Close & Open | |||
Q1: What makes the VBP-12M different from traditional vacuum circuit breakers?
A1: It uses a permanent magnet actuator (CKY type) with direct-drive transmission, which greatly improves reliability and reduces mechanical complexity.
Q2: Is it suitable for frequent operation?
A2: Yes, the VBP-12M is specifically designed for frequent switching operations and multiple short-circuit interruptions.
Q3: Can it be used in switchgear with withdrawable units?
A3: Yes, it can be equipped with a dedicated propulsion mechanism to form a handcart unit.
Q4: What industries commonly use this breaker?
A4: It is widely applied in industrial enterprises, mining operations, and power distribution networks requiring reliable protection and control.
Q5: How does the permanent magnet actuator improve performance?
A5: The actuator ensures fast, stable, and reliable operation, significantly extending service life while reducing maintenance needs.
Equipped with the patented CKY permanent magnet actuator and a direct-drive transmission design, the VBP-12M delivers outstanding operational reliability and performance. Its structure ensures precise, stable, and efficient operation, making it especially suitable for frequent switching operations and multiple short-circuit breaking scenarios.
The circuit breaker can be equipped with a special propulsion mechanism, forming a withdrawable handcart unit, which enhances flexibility and ease of integration in indoor switchgear applications.
Indoor power distribution systems (12kV)
Industrial enterprises requiring frequent switching operations
Mining operations with high reliability demands
Power grid protection and control
Switchgear units with handcart structures
Permanent Magnet Actuator – Uses the patented CKY permanent magnet mechanism for superior reliability and stable performance.
Direct-Drive Design – Simplifies the structure, reduces failure points, and ensures efficient operation.
High Breaking Capacity – Capable of handling multiple short-circuit interruptions safely.
Long Service Life – High mechanical and electrical endurance, designed for frequent operation.
Compact Structure – Space-saving design for modern indoor switchgear applications.
Handcart Unit Compatibility – Easily combined with a dedicated propulsion mechanism for withdrawable operation.
Low Maintenance – Simplified structure and advanced materials reduce maintenance requirements.
| Serial No. | Item | Unit | Numerical Value | |||
|---|---|---|---|---|---|---|
| 1 | Rated Voltage | kV | 12 | |||
| 2 | Rated Short - time Power Frequency Withstand Voltage (min) | kV | 42 | |||
| 3 | Rated Lightning Impulse Withstand Voltage (Peak Value) | kV | 75 | |||
| 4 | Rated Frequency | Hz | 50 | |||
| 5 | Rated Current | A | 630 1250 | 630 1250 | 630,1250 | 1250,1600 2000,2500 3150,4000 |
| 6 | Rated Short - circuit Breaking Current | kA | 20 | 25 | 31.5 | 40 |
| 7 | Rated Short - time Withstand Current | kA | 20 | 25 | 31.5 | 40 |
| 8 | Rated Short - circuit Duration | s | 4 | |||
| 9 | Rated Peak Withstand Current | kA | 50 | 63 | 80 | 100 |
| 10 | Rated Short - circuit Making Current | kA | 50 | 63 | 80 | 100 |
| 11 | Power Frequency Withstand Voltage of Secondary Circuit (1min) | V | 2000 | |||
| 12 | Rated Single Back - to - Back Capacitor Bank Breaking Current | A | 630/400 (40kA is 800/400) | |||
| 13 | Rated Capacitor Bank Closing Inrush Current | kA | 12.5 (Frequency not greater than 100Hz) | |||
| 14 | Opening Time | ms | ≤50 | |||
| 15 | Closing Time | ms | ≤70 | |||
| 16 | Mechanical Life | times | 30000 | |||
| 17 | Number of Rated Current Breaking Operations | times | 30000 | |||
| 18 | Number of Rated Short - circuit Current Breaking Operations | times | 50 (30 for kA) | |||
| 19 | Allowable Cumulative Wear Thickness of Moving and Static Contacts | mm | 3 | |||
| 20 | Contact Opening Distance | mm | 9±1 (Above 1600A: 11±1) | |||
| 21 | Over - travel | mm | 3.5±0.5 | |||
| 22 | Contact Closing Rebound Time | ms | ≤2 (≤3 for 40kA) | |||
| 23 | Asynchronism of Three - phase Closing and Opening | ms | ≤2 | |||
| 24 | Average Opening Speed | m/s | 0.9 - 1.2 | |||
| 25 | Average Closing Speed | m/s | 0.5 - 0.8 | |||
| 26 | Contact Opening Rebound Value | mm | 0 | |||
| 27 | DC Loop Resistance of Main Circuit | μΩ | ≤40 (Below 1250A); ≤35 (1600 - 2000A); ≤25 (Above 2500A) | |||
| 28 | Contact Closing Contact Pressure | N | 200±200 (20kA); 2400±200 (25kA); 3100±200 (31.5kA); 4300±200 (40kA) | |||
| 29 | Rated Operating Sequence | - | Open - 0.3s Close & Separate - 180s Close & Open | |||
Q1: What makes the VBP-12M different from traditional vacuum circuit breakers?
A1: It uses a permanent magnet actuator (CKY type) with direct-drive transmission, which greatly improves reliability and reduces mechanical complexity.
Q2: Is it suitable for frequent operation?
A2: Yes, the VBP-12M is specifically designed for frequent switching operations and multiple short-circuit interruptions.
Q3: Can it be used in switchgear with withdrawable units?
A3: Yes, it can be equipped with a dedicated propulsion mechanism to form a handcart unit.
Q4: What industries commonly use this breaker?
A4: It is widely applied in industrial enterprises, mining operations, and power distribution networks requiring reliable protection and control.
Q5: How does the permanent magnet actuator improve performance?
A5: The actuator ensures fast, stable, and reliable operation, significantly extending service life while reducing maintenance needs.
