ABB VD4 Series 40.5kV Medium Voltage Vacuum Circuit Breaker, ABB VD4 Series 40.5kV Medium Voltage Vacuum Circuit Breaker Factory supply-Zhejiang Zhongkong Electric Co., Ltd.

ABB VD4 Series 40.5kV Medium Voltage Vacuum Circuit Breaker

ABB's VD4 series 40.5kV vacuum circuit breakers are high-performance switchgear designed specifically for medium- and high-voltage power distribution systems. They are suitable for substations, industrial plants, new energy sources, and rail transportation, where high power supply reliability is required. This series employs solid-sealed poles and modular spring-operated mechanism technology, featuring high breaking capacity, long service life, and maintenance-free operation.

VD4 Series 40.5kV Technical Parameter Table
Technical parameters						40.5 kV series
standard						GB/T 1984, IEC 62271-100
Rated voltage (Ur)						40.5 kV
Power frequency withstand voltage (Ud)						95 kV (1 minute)
Lightning impulse withstand voltage (Up)						185 kV
Rated frequency (fr)						50/60 Hz
Rated current (Ir) (at an ambient temperature of 40°C)						1250 A, 1600 A, 2000 A, 2500 A
Rated breaking current (Isc)						25 kA, 31.5 kA
Rated short-time withstand current (Ik)						25 kA, 31.5 kA (4s)
Rated peak withstand current (Ip)						63 kA, 80 kA
Operation sequence						O-0.3s-CO-180s-CO
Opening time						30...45 ms
Closing time						55...67 ms
Opening and closing time						≤ 60 ms
Mechanical life						10,000 times
External dimensions (H×W×D) (typical values for handcart type)						1515 × 1055 × 710 mm
Phase spacing						360 mm
Reference weight						240 - 320 kg
Note : The 40.5kV circuit breaker uses a special planar spiral spring operating mechanism instead of the common EL mechanism to meet the requirements of higher voltage levels.

Size

1-Withdrawable circuit breaker

2-Withdrawable circuit breaker

3-Withdrawable circuit breaker

4-Fixed Circuit Breaker

5-Fixed Circuit Breaker

Standard VD4 40.5kV Complete Model List
The 40.5kV VD4 standard series covers the following specifications:
1. 1250A specification (current code 12)
Breaking current	Phase spacing	Handcart model	Fixed model
25 kA	P280 / P360	VD4 40.12.25 P280	VD4 40.12.25 P360
31.5 kA	P280 / P360	VD4 40.12.31 P280	VD4 40.12.31 P360
2. 1600A specification (current code 16)
Breaking current	Phase spacing	Handcart model	Fixed model
25 kA	P280 / P360	VD4 40.16.25 P280	VD4 40.16.25 P360
31.5 kA	P280 / P360	VD4 40.16.31 P280	VD4 40.16.31 P360
Example of specific models:
VD4 40.16.25 P6 110NST (Fixed type, order number: 51000645)
VD4 40.16.25 P280 (handcart type)
3. 2000A specification (current code 20)
Breaking current	Phase spacing	Handcart model	Fixed model
25 kA	P280 / P360	VD4 40.20.25 P280	VD4 40.20.25 P360
31.5 kA	P280 / P360	VD4 40.20.31 P280	VD4 40.20.31 P360
4. 2500A specification (current code 25)
Breaking current	Phase spacing	Handcart model	Fixed model
25 kA	P280 / P360	VD4 40.25.25 P280	VD4 40.25.25 P360
31.5 kA	P280 / P360	VD4 40.25.31 P280	VD4 40.25.31 P360
5. 3150A specification (current code 31)
Breaking current	Phase spacing	Handcart model	Fixed model
25 kA	P280 / P360	VD4 40.31.25 P280	VD4 40.31.25 P360
31.5 kA	P280 / P360	VD4 40.31.31 P280	VD4 40.31.31 P360

ABB VD4 Series 40.5kV Medium Voltage Vacuum Circuit Breaker

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