Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Basic Info.
- Model NO.
- Vzf (R) -12
- Speed
- High-Speed Circuit Breaker
- Arc-extinguishing Medium
- Vacuum
- Installation
- Insert
- Structure
- Vcb
- Poles Number
- 3
- Type
- Switch-Fuse Combination
- Function
- Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), Do as Your Request
- Certification
- ISO9001-2000
- Rated Voltage
- 12kv
- Rated Frequency
- 50/60Hz
- Rated Current
- 630AA
- Phase Distance
- 210mm
- OEM
- Accept
- Transport Package
- Wooden Case
- Specification
- steel, expoxy resin
- Trademark
- LIYOND
- Origin
- China
Packaging & Delivery
- Package Size
- 80.00cm * 80.00cm * 85.00cm
- Package Gross Weight
- 150.000kg
Product Description
The VZF(R)-12 vacuum load break switch-fuse combination unit is specially designed for 12kV indoor air-insulated switchgear (AIS). It integrates load switching and fuse protection in a compact, withdrawable handcart, offering reliable short-circuit protection and easy maintenance.
Key Features:
-
Rated voltage: 12kV, rated current: 630A
-
Breaking capacity: 25kA (short circuit)
-
Withdrawable handcart design, easy to install and maintain
-
Vacuum interrupter with triple-sealed insulation
-
Epoxy "T" pole cast with APG technology
-
Fuse-blown trip function, ensuring double protection
-
Full mechanical interlock and visible disconnection
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Modular terminal layout for easy wiring replacement
Applications:
-
Medium voltage air-insulated switchgear
-
Power distribution systems in industrial, utility, and infrastructure sectors
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Suitable for panel manufacturers and OEM switchgear assembly
Mechanical Characteristic Parameters
| No. | Item | Unit | Parameter |
| 1 | Contact gap | mm | 9±1 |
| 2 | Contact pressure spring travel | mm | 4±1 |
| 3 | Phase center distance | mm | 210/275 |
| 4 | Opening/closing time difference | ms | ≤2 |
| 5 | Contact closing spring time | ms | ≤3 |
| 6 | Average closing speed | m/s | 0.4~0.8 |
| 7 | Average opening speed | m/s | 1.0~1.4 |
| 8 | Closing time (rated voltage) | ms | ≤60 |
| 9 | Opening time (rated voltage) | ms | ≤30 |
| 10 | Main circuit resistance | mΩ | ≤250 |
| 11 | Allowable wear thickness of contacts | mm | 3 |
Technical Parameters
| No. | Name | Unit | VZF-12/T630-20 Vacuum Load Switch | VZFR-12/T125-50 Vacuum Load Switch - Fuse Combination |
| 1 | Rated voltage | kV | 12 | 12 |
| 2 | Power frequency withstand voltage (phase/earth) | kV | 42 | 42 |
| 3 | Lightning impulse withstand voltage (phase/earth) | kV | 75 | 75 |
| 4 | Rated current | A | 630 | 125 (Fuse) |
| 5 | Rated short-circuit breaking current | kA | - | 50 (Fuse) |
| 6 | Rated short-time withstand current | kA | 20 | - |
| 7 | Rated peak withstand current | kA | 50 | - |
| 8 | Rated short-circuit making current | kA | 50 | - |
| 9 | Rated cable charging breaking current | A | 16 | - |
| 10 | Rated transfer current | A | - | 3150 |
| 11 | No-load transformer breaking capacity | kVA | 1250 | |
| 12 | Electrical life | times | 10000 | |
| 13 | Partial discharge level | pC | ≤5 | |
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Q: Could I have prices of your products?
A: Welcome. Please feel free to send us an inquiry here. We will reply to you within 24 hours.
Q: Can I get a sample before the bulk order?
A: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.
Q: Can we print our logo/company name on products?
A: Yes, of course, we accept OEM. Kindly provide brand authorization to us.
Q: Do you accept product customization?
A: Yes, of course. Please provide specific drawings or parameters, and we will quote you after evaluation.
Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment.
Q: What are your Trade Terms?
A: We accept EXW, FOB, CIF, FCA, etc.
Q: What is your payment method?
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc.
Q: Do you inspect the finished products?
A: Yes, each step of production and finished products will be inspected by the QC department before shipping. We will provide goods inspection reports for your reference before shipment.
Q: How to solve quality problems after sales?
A: Take photos of the quality problems and send them to us for checking and confirming. We will provide a satisfactory solution within 3 days.
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