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MNS low-voltage fixed switchgear

This series of low-voltage withdrawable switchgear is a combination cabinet type assembled by the factory using standard modules (FBA). The product is used in power plants, substations, petrochemicals, light industry textiles, metallurgical steel rolling, airports, schools, high-rise buildings and other places. It is used as an AC 50 (60) Hz, rated working voltage 660V and below power system, for power, lighting, motor centralized control and distribution equipment to receive and distribute electrical energy.

Category:

Low Voltage Systems

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Description:

Product Overview
This series of low-voltage withdrawable switchgear is a combination cabinet type assembled by the factory using standard modules (FBA). The product is used in power plants, substations, petrochemicals, light industry textiles, metallurgical steel rolling, airports, schools, high-rise buildings and other places. It is used as an AC 50 (60) Hz, rated working voltage 660V and below power system, for power, lighting, motor centralized control and distribution equipment to receive and distribute electrical energy.

Working Conditions

The humidity of the surrounding air should not exceed+40°C, not be lower than-5°C, and the average temperature over 24 hours should not exceed+35°C;
The surrounding air is clean, with a relative humidity not exceeding 50% at a maximum temperature of+40°C.Higher relative humidity is allowed at lower temperatures, such as 90% at+25°C,but consideration should be given to the possibiity of occasional moderate condensation due to temperature changes;
Indoor use, altitude not exceeding 2000m, in a place without significant shaking and shock vibration;
Pollution level:Level 3;
Seismicintensity:Level 8;
The temperature during transportation and storage of switchgear can range from -25°Cto 55°C,and the temperature can reach+70°C in a short period of time (not exceeding 24 hours).

Model Meaning

M	Modularization, modularity
N	New type
S	Electrical system
	Main circuit scheme code
	Code for auxiliary circuit scheme

Technical Parameter

Name		GB725.1-2013 Low Voltage Switchgear and Control Equipment(TTA)
		IEC61439 Low Voltage Switchgear and Control Equipment
Overvoltage category		IV III
Pollution degree		3
Rated working voltage (Ue) (V)		400/600
Rated insulation voltage (Ui) (V)		660/1000
Rated frequency(Hz)		50(60)
Horizontal busbar	Rated current	<5000A
	Rated short-time withstand current (lcw) (kA)	50,65,80(Is Valid value)
	Rated peak attached current (lpk) (kA)	105,140,176(0.1s Maximum value)
Vertical B busbar	Rated working current of Si Da	<1000A
	Rated short-time withstand current	50kA
	Rated Peak Withstand Current	105kA
Degrees of protection provided by enclosure		IP30 IP40(Special note)

Parameters

Key words:

MNS low-voltage fixed switchgear

GCK low-voltage fixed switchgear

SIVACON 8PT low-voltage switchgear

Application description:

The company has a diverse, high-performance product portfolio, backed by cutting-edge technology and stringent quality standards, to meet the needs of the domestic and international markets. The products include 12-72.5 kV gas insulated switchgear, 12-40.5 kV switchgear, Ring Main Units (RMUs), Mobile Substations, Column Mounted Switchgear and Integrated Primary and Secondary Switchgear. Its flagship products, such as the NISELA series of environmentally friendly gas-insulated RMUs and the GISELA series of SF6 gas-insulated RMUs, integrate cutting-edge technologies such as solid insulation, vacuum interrupting and modular plug-in design to ensure high reliability, environmental friendliness and adaptability to different scenarios (indoor/outdoor, basement, etc.). These products are widely used in urban power distribution networks, rail transportation, new energy and industry, etc. The market share of RMUs in China's railroad sector reaches 30%. The company prioritizes product innovation and continues to strengthen its R&D capabilities in 40.5kV environmentally friendly gas insulation, SF6 breaking technology and multi-field coupling simulation. This commitment ensures that our products not only meet current industry standards, but also lead the way in technological advancement, providing future-proof solutions for our customers. In addition, they products are exported to Singapore, South America, Southeast Asia, Korea, the Middle East and other international markets.

Infrastructure Projects

Renewable Energy Integration

Commercial Building Electrification

Grid Application Solutions

Why Choose Us?

Huatuo Power Equipment Group

HUATUO Power Equipment Group Co., Ltd. has six subsidiaries and possesses strong R&D capabilities. Since its establishment, the company has published 45 papers and applied for 124 patents, including 64 invention patents. The company has been awarded titles such as ‘4A-level Credit Enterprise,’ ‘Henan Province High-Quality Medium-Sized Enterprise,’ and ‘Mayor's Quality Award,’ fully demonstrating its excellence in technology, quality, and credibility. The company employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 sets of various ring main units and an annual output value of approximately 1.58 billion RMB. The company is equipped with comprehensive testing facilities, including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

2007 year

Company establishment

50000 m²

Equipped Warehouse

30000 Sets

Annual production of various ring main units

124 +

Patent Certificate

Shipping Site

Huatou Power Equipment Group Co., Ltd. consistently adheres to the principle of ‘pursuing high quality and customer satisfaction,’ upholding the principles of ‘the most competitive prices, the most considerate service, and the most reliable product quality.’ The company focuses on long-term customer satisfaction, offering timely after-sales service, including on-site commissioning, maintenance guidance, and technical consultation. Its comprehensive logistics and response system ensures rapid access to spare parts and professional support. We welcome you to contact us.

FAQ

Can your factory guarantee both delivery speed and quality?

No problem. Our company currently employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 units of various ring main units and an annual output value of approximately RMB 1.58 billion. The enterprise is equipped with comprehensive testing facilities including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

Are you a trading company or a manufacturer?

We are a manufacturer at the source. Our company is dedicated to providing comprehensive, end-to-end “one-stop” solutions for clients in the power systems, industrial, and new energy power plant sectors, meeting their diverse needs.

The company is committed to providing all-round, whole-process “one-stop” solutions to meet the different needs of customers in the fields of electric power system, industry and new energy power station.

MNS low-voltage fixed switchgear

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