VCF Series 12kV Indoor Handcart Type Contactor-Fuse Unit

Product Overview

The VCF series vacuum circuit breaker–fuse combination unit (F-C type) is designed for three-phase AC power systems at 50–60 Hz with rated operating voltages of 3.6 kV, 7.2 kV, and 12 kV.
This compact and reliable device integrates a vacuum circuit breaker with a fuse, offering superior protection and switching functions for industrial enterprises, power plants, and substations. It is particularly suitable for environments requiring frequent switching operations.

The withdrawable handcart design ensures high interchangeability with KYN28A (GZS1) switchgear, with available handcart widths of 650 mm and 800 mm.
Manufactured and tested in compliance with GB/T 14808 and GB/T 11022 standards, the VCF series guarantees reliable performance and safety.

Model Designation (VCF-□/□/□/□)

• ① Vacuum circuit breaker–fuse combination

• ② Rated voltage: 3.6 kV / 7.2 kV / 12 kV

• ③ Connection type: J – Mechanical interlock, D – Electric operation

• ④ Mechanism type (electromagnetic / spring)

• ⑤ Fuse type: M – Motorized, T – Fixed, C – Electrically operated with fuse

• ⑥ Rated current: 25 A – 400 A

• ⑦ Rated short-circuit breaking capacity: 40 kA / 50 kA

• ⑧ Auxiliary control voltage: DC/AC 220 V / 110 V

Technical Parameters

Service Conditions

• Indoor installation; ambient temperature range: –25°C to +40°C

• Installation altitude: ≤1000 m

• Relative humidity: daily average ≤95%, monthly average ≤90%

• Free from explosive hazards, heavy pollution, or severe vibrations

• Withstand voltage against electromagnetic interference: ≥1.6 kV

Key Advantages

• Compact Integration: Combines circuit breaker and fuse for reliable protection.

• High Interchangeability: Compatible with KYN28A (GZS1) switchgear systems.

• Wide Application: Ideal for industrial plants, substations, and power distribution networks.

• Reliable Standards Compliance: Fully tested according to GB/T 14808 & GB/T 11022.

Customer Feedback

• ⭐⭐⭐⭐⭐
  “The breaker-fuse combination design is exactly what we needed for our medium-voltage switchgear retrofit. Easy integration with KYN28 panels and reliable under frequent operations.”
  
  

• ⭐⭐⭐⭐⭐
  “We tested the VCF unit under harsh humidity conditions, and it performed flawlessly. The mechanical interlock and withdrawable handcart design are very practical for our substation.”
  
  

• ⭐⭐⭐⭐☆
  Compared to ABB VD4, this VCF series offers similar reliability but at a more competitive price. Auxiliary control voltage options (220V/110V) made it flexible for our project in Poland.”
  
  

• ⭐⭐⭐⭐⭐
  “Compact, robust, and compliant with IEC/GB standards. We deployed several 12kV VCF units in our manufacturing plant switchgear line. No issues after 18 months in operation.”
  
  

• ⭐⭐⭐⭐☆
  “The handcart interchangeability (650mm and 800mm) really simplified our upgrade process. Technical support was responsive and delivery was on time.”
  — Project Engineer, Italy