XGN2-12 Compact Metal-Enclosed Switchgear

XGN2-12 box-type fixed AC metal-enclosed switchgear is suitable for 3.6～12KV three-phase AC systems at 50Hz/60Hz, with a rated current range of 630～3150A. It serves as an indoor complete power distribution equipment for receiving and distributing electric power. It is applicable to power plants, substations, and industrial facilities. This medium-voltage switchgear is particularly suitable for residential areas, schools, and high-rise buildings, providing safe and reliable control and protection for power distribution.

Why choose XGN2-12 Compact Metal-Enclosed Switchgear

Designed for switchgear and protection systems, the XGN2-12 is suitable for areas with ambient temperatures between -25°C and 40°C and altitudes up to 1000m. This electrical switchgear ensures smooth operations under seismic conditions of up to 8 magnitudes and prevents damage from harmful gases. Its advanced interlock mechanism simplifies operation, meeting “five-prevention” safety standards.

Five Prevention Functions:

Prevent misoperation of opening or closing circuit breakers.
Prevent opening or closing disconnect switches under load.
Prevent accidental entry into live compartments.
Prevent connecting grounding wires to live equipment.
Prevent energizing equipment with grounding wires connected.

Product Advantages

Sturdy Structure: The cabinet is built with a corner steel welded frame, offering high strength, good stability, and is suitable for harsh working conditions.

Cost-Effective: Fixed design structure, which reduces costs and provides excellent value for money.

Easy Maintenance: The internal layout is intuitive, components are easy to inspect, and maintenance costs are low in the long term.

Compact Footprint: Small volume with low installation space requirements, making it ideal for retrofitting old electrical distribution rooms.

Reliable Operation: Excellent protection, no complex moving parts, low failure rate, suitable for long-term stable operation.

Operating Conditions

Altitude: ≤ 1000m.

Ambient Temperature: -25°C to +40°C, with the 24-hour average temperature not exceeding +35°C.

Relative Humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.

Air Quality: The surrounding air should not be polluted by harmful gases.

Seismic Intensity: ≤ 8 levels.

Application

The XGN2-12 box-type fixed AC metal-enclosed switchgear is mainly used in indoor substations ranging from 3.6kV to 12kV, industrial and mining enterprises, and old distribution rooms, undertaking the tasks of receiving, distributing and protecting electrical energy.

Model meaning

Technical Parameters

Overall and mounting dimensions(mm)（Reference）

Model meaning

XGN2-12 Compact Metal-Enclosed Switchgear	X:	Box-type structure
	G:	Fixed-type installation
	N:	Indoor type
	2:	Design series
	12:	Rated voltage 12kV (also compatible with 3.6/7.2kV)

Technical Parameters

Item	Parameter
Rated Voltage	12kV
Rated Frequency	50Hz
Rated Current	630A / 1250A / 1600A / 2000A / 3150A
Rated Short-Circuit Breaking Current	20kA / 25kA / 31.5kA
Rated Short-Time Withstand Current (4s)	20kA / 25kA / 31.5kA
Rated Peak Withstand Current	50kA / 63kA / 80kA
Power Frequency Withstand Voltage (1min)	Phase-to-phase / phase-to-ground 42kV, Breaker 48kV
Lightning Impulse Withstand Voltage	Phase-to-phase / phase-to-ground 75kV, Breaker 85kV
Degree of Protection	IP2X
Environmental Conditions	Indoor use
Operating Mechanism	Spring mechanism
Interlocking Type	Five-prevention mechanical interlocking
Compatible Circuit Breakers	ZN28, VS1 (ZN63A) series vacuum circuit breakers
Insulation Type	Air insulation
Temperature Rise Limit	≤40K

Overall and mounting dimensions(mm)（Reference）

(The values can be customized according to local project requirements.)

If you have specific requirements for the parameters, structure, or configuration of the XGN2‑12 compact metal‑enclosed switchgear, please contact us. Our team of account managers, technical engineers, and product consultants will assess your power system design, rated specifications, installation environment, switching requirements, and project timeline to provide a tailored solution that matches your exact use case.

We can customize the rated voltage (typically 3.6 kV, 7.2 kV, 12 kV), rated current capacity (such as 630 A–3150 A), busbar scheme (single bus, single bus with bypass, or double bus), circuit breaker type, compartment layout, enclosure protection level, mechanical interlocking, and other key design details to ensure the switchgear delivers reliable, safe, and efficient performance in your medium‑voltage power distribution network. The XGN2‑12 series is widely used in power plants, substations, industrial and mining enterprises, and commercial buildings for receiving and distributing power, protecting circuits, and facilitating control and monitoring within the system.

FAQ

What is indoor metal-enclosed switchgear used for?

Indoor metal-enclosed switchgear is used to receive, distribute, control, and protect electrical power in medium-voltage systems. It is commonly applied in substations, industrial plants, commercial buildings, and infrastructure projects.

Where is this type of medium-voltage switchgear commonly installed?

This type of switchgear is widely used in indoor substations, factories, industrial and mining enterprises, power plants, commercial buildings, residential projects, and other medium-voltage distribution environments.

What voltage range can this kind of switchgear support?

Indoor fixed metal-enclosed switchgear is typically used for medium-voltage distribution systems from 3.6kV up to 12kV, depending on the cabinet design and project requirements.

What current ratings are commonly available?

Common rated current options usually include 630A, 1250A, 1600A, 2000A, 2500A, and 3150A, which can cover a wide range of medium-voltage distribution applications.

What are the advantages of a fixed metal-enclosed switchgear design?

A fixed metal-enclosed design usually offers a compact structure, stable operation, simpler maintenance logic, and good cost performance. It is often chosen for projects that need reliable long-term operation and clear internal compartment separation. This is an inference based on the common design features and operating characteristics described in comparable product literature.

What safety features are important in medium-voltage switchgear?

Important safety features include metallic enclosure, separated compartments, grounding provisions, pressure relief paths, and mechanical interlocking systems. These features help improve operator safety and reduce the risk of incorrect operation.

Is this type of switchgear easy to maintain?

Yes. Medium-voltage metal-enclosed switchgear is generally designed to allow safer inspection and more organized maintenance through compartmentalized construction and controlled access to major components.

What type of circuit breaker is commonly used in this kind of switchgear?

Vacuum circuit breakers are commonly used in this type of medium-voltage switchgear because they are suitable for distribution applications and support reliable switching performance in 12kV systems.

What environmental conditions should be considered when selecting indoor switchgear?

Key factors include ambient temperature, altitude, humidity, seismic conditions, ventilation, and whether the installation environment contains corrosive gas or severe pollution. These factors directly affect product selection and long-term reliability. This is a standard selection principle reflected across comparable medium-voltage switchgear documentation.

Can this type of metal-enclosed switchgear be customized for different projects?

Yes. Medium-voltage switchgear is commonly customized based on rated voltage, current, busbar arrangement, protection scheme, circuit breaker configuration, and project-specific installation requirements.

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Nearly 20 Years of Industry Experience

10,000⁺ Units/Year Production Capacity

40,000^m²+ Factory Area

500⁺ Power Utility Clients

1 Billion⁺ CNY Annual Sales Revenue

XGN2-12 Compact Metal-Enclosed Switchgear