SH Power possesses a well-established R&D and engineering team capable of tailoring exclusive solutions for various project requirements. From system design to on-site application, we provide comprehensive technical support, helping customers achieve safe, intelligent, and highly efficient power distribution systems.
The MNS low-voltage switchgear is a modular and assembly-type low-voltage power distribution equipment. It is suitable for power systems with an AC frequency of 50Hz (or 60Hz) and a rated working voltage of 400V to 660V. Its main functions include power distribution, motor control, and reactive power compensation. It is widely used in power plants, substations, industrial and mining enterprises, high-rise buildings, and municipal construction.
| Rated voltage | 400V，690V,800V |
| Rated insulation voltage | 1000V |
| Rated impulse withstand voltage | 12kV |
| Overvoltage category | IV |
| Pollution level | III |
| Rated frequency | 50/60 |
| Horizontal busbar:Rated current(A) | up to 7500 |
| Horizontal busbar:Rated short-time withstand current(Icw)(kA) | 50/80/100 |
| Horizontal busbar:Rated peak withstand current(Ipk)(kA) | 105/176/220 |
| Vertical busbar:Rated current(A) | 2000 |
| Vertical busbar:Rated short-time withstand current(Icw)(kA) | 30/50/80 |
| Vertical busbar:Rated peak withstand current(Ipk)(kA) | 63/105/176 |
| Internal arc human protection(IEC 61641) | 100kA @400V 0.5s，65kA@690V 0.5s |
| Grounding system | TT-IT-TNS-TNC |
| Drawer installation density | 36 |
| Maximum incoming and outgoing circuit breakers(A) | up to 6300 |
| Maximum motor capacity(kW) | 250 |
| Maximum feeder current of the drawer(A) | 540 |
Features & Advantages
Our switchgear, including C-GIS and ring main units, features a compact and modular design, saving valuable installation space and allowing for flexible expansion and easy on-site assembly.
With all high-voltage components sealed in a stainless-steel gas tank, our equipment is protected from environmental factors. It features reliable mechanical and electrical interlocks to ensure the safety of operators.
Committed to sustainability, we offer eco-friendly switchgear that uses dry air as the insulating medium, completely eliminating SF₆ gas and minimizing environmental impact.
The fully sealed and insulated design ensures our switchgear is virtually maintenance-free throughout its service life, significantly reducing operational costs and downtime.
Our products can be integrated with intelligent solutions, supporting remote monitoring, control, and automated distribution systems, which is crucial for building modern smart grids.
Ideal for secondary distribution substations, industrial parks, commercial buildings, and residential communities, providing reliable power control and protection.
Perfectly suited for renewable energy applications such as wind farms and solar power plants, where compact and reliable switchgear is essential for power collection and grid connection.
Deployed in critical infrastructure like subways, railways, airports, and tunnels, where space is limited and high reliability is non-negotiable.
Used in demanding environments such as mining, petrochemical plants, and data centers that require robust, safe, and uninterrupted power management.
