Ningbo Tianan (Group) Co.,Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 2000PCS/year |
| Delivery Time | 35 work days |
| Packaging Details | Wooden Cases |
| Rated Voltage | 24KV |
| Embedded Poles | APG Process |
| Rated Current | 630 A,1250A |
| Type | Fixed Type / handcart Type |
| Brand Name | Tianan Electric |
| Model Number | VT19-24 |
| Certification | GB1984、GB/T11022、DL/T403 and IEC62271 |
| Place of Origin | China |
View Detail Information
Explore similar products
AC High Voltage Circuit Breaker , 35Kv 36KV Hv Vacuum Circuit Breaker Handcart
12KV VS1 Medium Voltage Vacuum Circuit Breaker For HV Switchgear , 630A / 1250A
12/24kV GB Standard Vacuum Circuit Breaker
9±1 Mm Contact Opening Distance High Voltage Circuit Breaker
Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 2000PCS/year |
| Delivery Time | 35 work days | Packaging Details | Wooden Cases |
| Rated Voltage | 24KV | Embedded Poles | APG Process |
| Rated Current | 630 A,1250A | Type | Fixed Type / handcart Type |
| Brand Name | Tianan Electric | Model Number | VT19-24 |
| Certification | GB1984、GB/T11022、DL/T403 and IEC62271 | Place of Origin | China |
| High Light | high voltage vacuum circuit breaker ，hv circuit breaker | ||
The VT19-24 indoor high voltage vacuum circuit breaker is designed for three-phase AC electrical systems operating at 50Hz and 24kV. This circuit breaker serves as a control and protection component in mining operations, power plants, and substations. Its specialized design makes it particularly suitable for applications requiring frequent operation under rated current conditions or multiple interruptions of short-circuit currents.
This circuit breaker complies with national and international standards including GB1984, GB/T11022, DL/T403, and IEC62271. It features reliable locking mechanisms and can be used in both truck-mounted and fixed installation configurations.
The vacuum arc-extinguishing chamber is the core component responsible for bearing, making, and breaking current energy. It provides superior arc-extinguishing capability and extended operational durability.
| Parameter | Specification |
|---|---|
| Rated Voltage | 24kV |
| Rated Frequency | 50Hz |
| Rated Lighting Impulse Withstand Voltage | 125kV |
| Rated 1 Min Power Frequency Withstand Voltage | 65kV |
| Rated Operation Sequence | O-0.3s-CO-180s-CO |
| Rated Current (A) | 630, 1250 | 1250, 1600, 2000, 2500 |
| Rated Short Circuit Breaking Current (r.m.s, kA) | 20/25 | 31.5 |
| Rated Short Circuit Making Current (peak value, kA) | 50/63 | 80 |
| Rated Short Time Withstand Current/Short Circuit Continuous Time (kA/s) | 20, 25/4 | 31.5/4 |
| Rated Peak Value Withstand Current (kA) | 50/63 | 80 |
| Breaking Times of Rated Short Circuit | 30 times |
| Mechanical Duration | 20,000 times |
| Weight | Fixed type: ≤250kg | Truck type: ≤350kg |
| Characteristic | Unit | Value |
|---|---|---|
| Distance of Contact Terminal | mm | 12±1 |
| Over-travel | mm | 4±1 |
| Three-phase Opening & Closing Asynchronous | ms | ≤2 |
| Tripping Time of Closing Contact Terminal | ms | ≤2 |
| Closing & Opening Time - Opening | ms | ≤50 |
| Closing & Opening Time - Closing | ms | ≤70 |
| Average Opening Speed (after opening 6mm) | m/s | 1.4±0.3 |
| Average Closing Speed (after closing 6mm) | m/s | 0.8±0.2 |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1969
Total Annual:
250000000-300000000
Employee Number:
3000~3500
Ecer Certification：
Verified Supplier
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office... Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office...
Get in touch with us
Leave a Message, we will call you back quickly!