Fzn21-40.5kv 1250A Indoor High Voltage Vacuum Load Switch for Three Phase AC Power System
Port:
Shanghai, China
Transport Package:
Wooden Case
Payment Terms:
T/T
Xuzhou Vogifan Equipment Co., Ltd.
Jiangsu, China
Last Login Date:
Oct 29, 2025
Main Products:
Power Transmission and Distribution Transformer, Box-Type Complete Substation, High and Low Voltage Distribution Cabinet, Liquid-Cooled Energy Storage Cabinet, Power Line Accessories
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High Voltage Vacuum Breaker with Electrical Circuit Interrupter Accessory Fkn12-12 Load Break Switch
US$200.00-500.00
1 Piece (MOQ)
Product Description
Company Info
Basic Info.
Breaking Capacity
Low Voltage Circuit Breakers
Operation
Energy-storage Type
Speed
Normal Type Circuit Breaker
Arc-extinguishing Medium
Vacuum
Installation
Open Frame
Structure
MCCB
Poles Number
1
Type
Circuit Breaker
Function
Circuit-Breaker Failure Protection
Certification
CCC
Model Number
Lw58 - 252
Rated Voltage
220kv
Rated Current
2500A
Frequency
50/60Hz
Pole No.
1
Trademark
Vouchivan
Specification
20KG
Origin
Xuzhou, China
Product Description
Product Description
No. | Description | Technical parameters | |||
1 | Rated voltage, kV | 72.5 | 126 | 145 | 252 |
3 | Rated frequency, Hz | 50/60 | |||
4 | Rated current, A | 1600~4000 | 3150~4000 | ||
1min Power frequency withstand voltage | 140 | 230 | 265 | 460 | |
Lightning impulse withstand voltage | 325 | 550 | 650 | 1050 | |
5 | Rated short-circuit breaking current, kA | 25~40 | 40~63 | ||
7 | Rated short circuit breaking current (peak), kA | 63~ 100 | 100~ 157.5 | ||
8 | Rated short duration, s | 3 | 3 | 3 | 3 |
Rated out-of-phase breaking current | 10 | 10 | 10 | 10 | |
Rated cable(line) charging breaking current | 10 | 31.5 | 50 | 125 | |
Rated gas pressure, Mpa | 0.4 | 0.5 | 0.5 | 0.6 | |
Operation sequence | O-0.3s-CO- 180s-CO | ||||
SF6 gas leakage rate (per year) | ≤1% | ||||
14 | First of several genes | 1.5 | 1.55 | 1.5 | 1.3 |
Main loop resistance, μΩ | ≤40 | ≤45 | ≤45 | ≤50 | |
Heater voltage | AC220 | ||||
Control circuit and signal circuit voltage | DC220, DC230 | ||||
Motor voltage | DC220, DC230 | ||||
Description
Outdoor Sulfur Hexafluoride (SF6) dead tank circuit breakers,
- Rated voltage : 69 KV
- Rated Continuous current : 1200 A / 1250A/1600A /2000A
- Interrupting current rating: 31.5 KA
- Frequency : 50 /60 Hz
- Basic insulation level (BIL): 350 KV
- With 6 pcs 150:5 ratio relaying accuracy bushing current transformers (CT)
- Outdoor usage, with 3 pcs SF6 interrupters
- 6-terminal pads with 4-hole each
- Trip-free spring operation mechanism
- 12-stages auxiliary contacts
- Anti-condensation cabinet heater
- Control wiring and terminal blocks
- 110VDC trip coil
- 48 VDC /110VDC closing coil
- 110 /220 VDC Auxiliary voltage
- with operation handle
- with isolating switches
- mechanical position indicator
- CB frame grounding terminal holes
- hot-dipped galvanized mounting structure
- with gas charging device with regulator valve
- with gas leak detector
- with spare SF6 gas
Circuit breakers meet the requirements specified in EN 62271-1, EN 62271-100, EN 60273, and other relevant EN (IEC) standards.
220KV 3Ph Live Tank SF6 Gas Circuit Breaker
LW Series self-energy SF6 Circuit Breaker is a three-pole/single-pole AC 50Hz/60Hz outdoor high voltage power transmission equipment for the division of the rated current, fault current or conversion lines, transmission and distribution system for protection, control and operation can be opening, closing and fast automatic reclosing operation. The circuit breaker using the latest design principles, has a simple structure, small size, low supplies, the energy needed to operate a small, high reliability, easy installation, low noise characteristics. Is my company developed a new generation of high voltage SF6 circuit breakers.
Service environment
1. Ambient temperature: -40 ºC ~ +50 ºC.
2. Daily average ambient air relative humidity ≤ 95%, on average ≤ 90%;
3. Wind pressure: less than 700pa.
4.Altitude: less than 3000m.
5.Earthquake intensity: not more than 9 degrees.
2. Daily average ambient air relative humidity ≤ 95%, on average ≤ 90%;
3. Wind pressure: less than 700pa.
4.Altitude: less than 3000m.
5.Earthquake intensity: not more than 9 degrees.
6. Air Contamination: 3 grade.
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