- English
- Español
- Português
- русский
- Français
- 日本語
- Deutsch
- tiếng Việt
- Italiano
- Nederlands
- ภาษาไทย
- Polski
- 한국어
- Svenska
- magyar
- Malay
- বাংলা ভাষার
- Dansk
- Suomi
- हिन्दी
- Pilipino
- Türkçe
- Gaeilge
- العربية
- Indonesia
- Norsk
- تمل
- český
- ελληνικά
- український
- Javanese
- فارسی
- தமிழ்
- తెలుగు
- नेपाली
- Burmese
- български
- ລາວ
- Latine
- Қазақша
- Euskal
- Azərbaycan
- Slovenský jazyk
- Македонски
- Lietuvos
- Eesti Keel
- Română
- Slovenski
- मराठी
- Srpski језик
China Indoor HV Isolation Switch Manufacturer, Supplier, Factory
Reliable electrical isolation is non-negotiable for safe facility operations. Our Indoor HV Safety Disconnect Switch provides a crucial, visible air gap, ensuring personnel safety during maintenance and emergency shutdowns. As a core component of modern Indoor High Voltage Switchgear Equipment, it is engineered for dependable performance in controlled environments. We offer robust solutions for common distribution voltages, including our precise Indoor Electrical Disconnect Switch 11kV and our heavy-duty Indoor Electrical Disconnect Switch 33kV, designed to meet stringent international standards for indoor applications.
The Indoor HV Isolation Switch is engineered for durability and operational safety in demanding indoor substations and industrial power distribution centers. Its compact, rigid construction allows for efficient integration into switchgear assemblies, maximizing space utilization without compromising on safety or accessibility. The switch mechanism provides a clear, unambiguous indication of its open or closed status, a critical feature for lock-out/tag-out (LOTO) procedures. Robust insulation materials and precision-machined contacts ensure consistent performance and long service life, minimizing maintenance requirements and operational downtime. It is a fundamental safety device for managing and isolating high-voltage circuits.
Key Product Specifications
- Rated Voltage: 12kV, 24kV, 36kV
- Rated Current: 630A, 1250A, 2000A, 2500A, 3150A
- Rated Short-Time Withstand Current: 25kA, 31.5kA, 40kA (3s)
- Rated Peak Withstand Current: 63kA, 80kA, 100kA
- Power Frequency Withstand Voltage (1 min): 42kV, 65kV, 95kV
- Lightning Impulse Withstand Voltage: 75kV, 125kV, 185kV
- Mechanical Life: 2000 operations minimum
- Operating Mechanism: Manual (lever), Motor-operated (optional)
- Standards Compliance: IEC 62271-102, IEEE C37.34, ANSI
Detailed Technical Parameters
| Model Series | Rated Voltage (kV) | Rated Current (A) | Short-Time Current (kA/3s) | Insulation Level | Mounting Type |
|---|---|---|---|---|---|
| IHVIS-12 | 12 | 630 - 2500 | 25 - 31.5 | LI 75kV / AC 42kV | Fixed, Withdrawable |
| IHVIS-24 | 24 | 1250 - 3150 | 31.5 - 40 | LI 125kV / AC 65kV | Fixed, Withdrawable |
| IHVIS-36 | 36 | 2000 - 3150 | 31.5 - 40 | LI 185kV / AC 95kV | Fixed |
Design & Construction Features
- Enclosure: Hot-dip galvanized steel or aluminum alloy, with corrosion-resistant coating.
- Contacts: Silver-plated copper alloy main and arcing contacts for low resistance and high durability.
- Insulation System: Epoxy resin insulators or porcelain with high creepage distance, designed for polluted environments.
- Interlocking: Mechanical and optional electrical interlocks to prevent incorrect operation.
- Earthing: Integrated maintenance earth switch available for enhanced safety.
- Viewing Window: Polycarbonate window for visible contact position verification.
Related Products
Hot Products
Air Type Load Break Switch
What is the definition of a truly reliable medium voltage switchgear? Is it the ability to safely and continuously disconnect load current? Is it a long service life or can it work normally under complex environmental conditions? The Air Type Load Break Switch from Zhejiang SanGao Electric Co., Ltd. not only meets all the above requirements, but also provides more choices.
Outdoor Boundary Vacuum Circuit Breaker
SanGao High Quality Outdoor Boundary Vacuum Circuit Breaker is an outdoor power distribution device with a rated voltage of 12KV and three-phase AC 50Hz. When the internal fault of the user occurs in the T-shaped connection of the 12KV distribution line, or although it occurs inside the user's incoming switch, the protection action time limit and improper protection of the substation's outgoing switch can cause the outgoing protection of the substation to disconnect.
High Voltage Isolation Switch
SanGao focuses on the research and development of High Voltage Isolation Switch. Our security sensors can reduce costs, improve efficiency, save energy, and promote environmental sustainability. In addition, the grounding switch is used in conjunction with the isolation switch to provide effective grounding/connection, grounding the power-off part of the system. We provide customized professional technical support.
High Voltage Circuit Breaker
SanGao High Quality High Voltage Circuit Breaker is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. It is mainly used for breaking and closing load current, overload current, and short-circuit current in power systems. It is suitable for distribution control in substations, industrial and mining enterprises, and urban and rural power grids, especially for frequent operation scenarios. This product complies with GB1984-2003, DL/T 402-2007, and IEC60056 technical standards, and supports remote monitoring and automation control.SanGao has gradually become a high quality supplier in China's High Voltage Circuit Breaker industry. They are widely used in urban and rural power grid renovation, transmission and distribution engineering, sewage treatment, hydropower stations, wind power plants, metallurgical industry, petrochemical industry, mining, railways, residential area construction, and power engineering projects. Normal operating environment ◆ Surrounding air temperature: -30 ℃~+60 ℃; ◆ Altitude: not exceeding 3000m; The wind speed does not exceed 34m/s; Vibration or ground motion from outside the switchgear and control equipment can be ignored; Pollution level: Level IV; Storage temperature: -40 ℃~+85 ℃. Characteristics of switch structure 1. The High Voltage Circuit Breaker features a three phase pillar structure that is maintenance free, small in size, lightweight, and has a long lifespan. 2. The circuit breaker adopts a fully enclosed structure with good sealing performance, which helps to improve moisture proof and anti condensation performance, especially suitable for use in cold or humid areas. 3. The three-phase pillars and current transformers adopt imported outdoor epoxy resin solid insulation, or indoor epoxy resin wrapped with organic silicon rubber solid insulation; It has the characteristics of high and low temperature resistance, UV resistance, and aging resistance.
High Voltage Zinc Oxide Lightning Arrester
SanGao is a professional China quality High Voltage Zinc Oxide Lightning Arrester manufacturer.This High Voltage Zinc Oxide Surge Arrester uses high-performance zinc oxide resistors as its core. This material exhibits excellent non-linear characteristics. When the system is operating normally, it acts as an insulator. However, upon detecting overvoltage, it can instantly switch to a conductive state, precisely dissipate energy, and immediately return to its original state after protection. This maintenance-free, self-driven, and rapid-response mechanism of this Zinc Oxide Polymer Lightning Arrester provides crucial and reliable protection for power equipment.
Handcart Type Vacuum Circuit Breaker
Advanced Handcart Type Vacuum Circuit Breaker is an indoor high-voltage switchgear with a rated voltage of 24kV and three phase AC 50Hz, suitable for control or protection switches in power plants, substations, and industrial and mining enterprises. It is particularly suitable for cutting off important loads and frequent operations in high-altitude areas. SanGao adheres to the business philosophy of "quality, efficiency, and high standards" and has close cooperation and communication with technology enterprises such as Xi'an Senwu'an.
- Related Blog
- Reviews
