Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection

Product Details
Customization: Available
Breaking Capacity: High Voltage Circuit Breakers
Operation: Energy-storage Type
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Number of Employees
18
Year of Establishment
2011-04-07
  • Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
  • Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
  • Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
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  • Overview
  • FAQ
Overview

Basic Info.

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

Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
VZF(R)-12 12kV Indoor Vacuum Switch-Fuse Unit with Fuse Protection
Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
 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

  • Modular terminal layout for easy wiring replacement

Applications:

  • Medium voltage air-insulated switchgear

  • Power distribution systems in industrial, utility, and infrastructure sectors

  • 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 ≤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


Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection
Vzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse ProtectionVzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse ProtectionVzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse ProtectionVzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse ProtectionVzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse ProtectionVzf (R) -12 12kv Indoor Vacuum Switch-Fuse Unit with Fuse Protection

 
FAQ

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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