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High-Voltage Switchgear
KYN61-40.5 withdrawable AC metal-enclosed high-voltage switchgear

Scope of Application:The KYN61-40.5 is a switchgear for three-phase AC 50Hz systems (40.5kV). It provides power distribution, protection, and control in power plants, substations, and industries, especially where frequent operation or high reliability is needed, like data centers, metallurgy, and chemical plants.

Rated Voltage: 24kV, 33KV,36kV, 40.5kV).
Rated Current: 1250A, 1600A, 2000A, 2500A, 3150A.
Rated Short-Circuit Breaking Current: 25kA, 31.5kA, 40kA.
Rated Short-Time Withstand Current: 25kA/4s, 31.5kA/4s, 40kA/4s.
Protection Degree: Enclosure IP4X, Compartment IP2X.
Internal Arc Classification: IAC-AFLR 40kA/1s (IEC 62271-200).

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XGN17-40.5 fixed-type high-voltage switchgear
XGN17-40.5 fixed-type high-voltage switchgear

Scope of Application:The XGN17-40.5 is an indoor AC switchgear for 40.5kV systems (IEC 36kV level). Used in power plants, substations, and industrial facilities, it handles power reception, distribution, control, protection, and monitoring. It supports single-bus or single-bus with bypass configurations and is designed for critical operations needing high reliability.

Rated Voltage: 33KV,34.5KV,35KV,36KV
Rated Current: Main bus 1250A/1600A/2000A/2500A; Feeder bus 630A/1250A/1600A/2000A
Insulation Parameters: Power frequency withstand voltage 95kV (1min); Lightning impulse withstand voltage 185kV
Control Supply: DC 24V/48V/110V/220V; AC 110V/220V

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High-voltage motor control switchgear
High-voltage motor control switchgear

Scope of Application:High-voltage motor control switchgear (3.3kV-15kV) controls, protects, and intelligently manages large industrial motors (like pumps and compressors) in heavy industries such as petrochemicals, power generation, and mining. metallurgy, and mining.

Rated Voltage: 3.3kV, 6.6kV, 7.2kV, 11kV, 12kV, 13.8kV, 15kV (compliant with IEC 62271-1/IEEE C37.04).
Rated Current: 400A to 5000A.
Rated Short-Circuit Breaking Capacity: 25kA/40kA (1s or 3s short-time withstand current).
Power Frequency Withstand Voltage: 28kV (12kV systems) / 38kV ( 15kV systems).
Lightning Impulse Withstand Voltage: 75kV (12kV) / 95kV (15kV systems).

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
33kV high voltage switchgear

Scope of Application:The 33kV high-voltage switchgear is designed for power distribution and control in industrial plants, power generation stations, and substations. It serves as a key component in medium-capacity power distribution networks, ensuring reliable energy transmission, protection, and monitoring.

Rated Voltage: 33kV
Rated Current: 630A / 1250A / 1600A / 2000A / 2500A / 3150A
Rated Short-Circuit Breaking Current: 25kA / 31.5kA / 40kA
Rated Short-Time Withstand Current (1s/3s): 25kA / 31.5kA / 40kA
Rated Peak Withstand Current: 63kA / 80kA / 100kA
Insulation Level: Power frequency withstand voltage 70kV, lightning impulse withstand voltage 170kV
Protection Class: IP4X (enclosure) / IP2X (compartments)

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Ring Main Unit (RMU)
Ring Main Unit (RMU)

Scope of Application:The Ring Main Unit (RMU) is a compact switchgear device used in medium-voltage power distribution systems (typically 10kV–35kV). It is suitable for urban power grids, industrial parks, commercial buildings, rail transit, renewable energy generation, and other applications, enabling ring-network power supply, line protection, and power distribution.

Parameters:Rated Voltage: 10KV/11KV/12kV / 24kV / 40.5kV
Rated Current: 630A / 1250A / 2500A
Short-Circuit Breaking Capacity: 20kA / 25kA / 31.5kA
Protection Level: IP67 (gas compartment) / IP4X (cabinet)
Insulation Medium: SF6 / Vacuum / Dry Air / Solid Insulation

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KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear
KYN28-12 Metal-Clad Withdrawable Medium Voltage Switchgear

Scope of ApplicationThe KYN28-12 metal-clad withdrawable switchgear is designed for three-phase AC power systems (50Hz or 60Hz, rated voltages of 3.6kV, 7.2kV, 10kV, 11kV, 12kV and 15kV), and is used for power distribution, control, and protection in power plants, substations, industrial plants, and critical infrastructure. It is especially suitable for frequent switching and high-reliability applications.

Rated Current: 630A, 1250A, 1600A, 2000A, 2500A, 3150A
Icw: 25kA/4s, 31.5kA/4s, 40kA/4s
Ipk: 63kA, 80kA, 100kA
IP Rating:IP4X P2X

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INDUSTRY NEWS More
Marine Switchboard
Marine Switchboard Market Share Analysis and Development Trend Analysis
Conclusion: European players maintain short-term dominance in premium segments, but Chinese manufacturers are rapidly gaining ground through cost and scale advantages. Future competition will center on smart functionalities, green compatibility, and modular innovation, with technological agility determining market repositioning.
2025/07/17
Switchgear
The market share of Chinese switchgear exported to Indonesia
China holds 60-70% of Indonesia's switchgear imports, led by cost-competitive LV/MV products. Key drivers: Indonesia's power demand growth (6-7%/year) and infrastructure projects. Challenges include local content rules (TKDN) and certification. Growth areas: renewables and smart grids. Chinese firms advance via tech upgrades and localized production.
2025/07/16
Control-Switchgear
Chinese-Developed Intelligent Power Distribution Switchgear Debuts at Munich Event
Munich, Germany – From June 24th to 27th local time, the 27th Laser World of Photonics was held at Messe München. ShengLong Electric showcased its self-developed AI-iPanel, the world's first artificial intelligence power distribution switchgear, attracting significant attention from global professionals.
2025/07/15
Fire-Rated Switchgear
Which places require Fire-Rated Switchgear?
Fire-Rated Switchgear (also known as Fire-Resistant Switchgear or Fire-Resistant Distribution Cabinets) are specially designed electrical enclosures. Their core function is to maintain the normal operation of internal electrical equipment for a specified duration (typically 30 minutes, 60 minutes, 90 minutes, or 120 minutes) during a fire, while preventing flames and hot gases from propagating through the enclosure to other areas. This provides critical time for personnel evacuation, firefighting operations, and the continued operation of essential equipment.
2025/07/14
technical knowledge More
Gas-Insulated Switchgear (GIS)
Gas-Insulated Switchgear (GIS) for High-Altitude Applications
For Gas-Insulated Switchgear (GIS), since the main live circuits are enclosed within sealed, gas-filled compartments and external connections utilize solid insulation, the insulation performance is unaffected by atmospheric pressure. The primary consideration for GIS at high altitudes is the mechanical strength of the gas enclosure (gas compartment).
2025/08/08
switchgear
What are the differences between IEC-standard switchgear and UL-standard switchgear?
IEC standard switchgear and UL standard switchgear (represented by UL1558 and UL891) fall under different technical systems in power systems, with differences mainly reflected in their standard frameworks, structural design, performance requirements, and applicable scenarios. The following is a comprehensive comparative analysis:
2025/08/08
Ring Main Unit
Technical Requirements and Specifications for 17.5kV Ring Main Units in the Saudi National Grid
SEC Specifications: 17.5kV Ring Main Unit (RMU) - Key Features         Outdoor Enclosure: Designed for outdoor installation.         Dedicated Cable Withstand Voltage Test Terminal Compartment: Features a separate, accessible compartment for cable high-potential (Hi-Pot) testing.         Self-Powered Protection Unit: Utilizes an internal power source for the protection relay.         SF6 Insulated, Single-Tank Design F+F+V Configuration: Common SF6 gas tank housing a combination of Load Switch (F) + Load Switch (F) + Circuit Breaker (V).         Ratings: Ring Switch Unit: 630A. Feeder Circuit Breaker: 200A.         Compliance Standard: SEC Standard 32-SDMS-11.
2025/08/08
Medium Voltage Switchgear
Medium Voltage Switchgear UL Standard Specifications
Switchgear destined for the North American market requires UL (Underwriters Laboratories) certification. UL is a U.S. safety certification organization. It develops its own standards, such as UL 891 (Dead-Front Distribution Switchboards), UL 67 (Panelboards), and UL 845 (Motor Control Centers), and also provides product certification services.
2025/08/07
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