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China KGNX-12 Indoor AC Metal-clad Fixed Switchgear - Reliable Suppliers & Factory for 3.6-12kV Solutions

The KGNX-12 is an advanced indoor AC metal-clad fixed switchgear that operates within a voltage range of 3.6-12kV. This innovative solution, featuring a compact and multi-functional vacuum circuit breaker or load switch, is perfect for power reception, distribution, control, and protection in three-phase 50(60)Hz systems. It is especially suitable for applications in substations, industrial plants, and high-rise buildings. With its miniaturized design (W500xD940xH2000mm), the KGNX-12 saves up to 58% space compared to traditional models such as KYN 28-12, offering exceptional flexibility and reliability. As a leading manufacturer in China, we take pride in supplying high-quality switchgear solutions to meet the needs of our clients. Trust our factory to deliver dependable performance and advanced technology for your power systems

Product Details

Product Model

KGNX-12 Indoor AC Metal-clad Fixed Switchgear

ⓘ The design serial numbers are XGN68, XGN88, and XGN98, which are identical in cabinet type and can be universally used for this small-sized cabinet.

Technical Parameters

KGNX-12(V) Cabinet Technical Parameters (Circuit Breaker Cabinet)

Serial Number	Project	Unit	Data
1	Rated Voltage	kV	3.6~12
2	Rated Current	A	630 / 1250
3	Rated Short-circuit Breaking Current	kA	20 / 25 / 31.5
4	Rated Short-circuit Making Current	kA	50 / 63 / 80
5	Rated Short-time Withstand Current (4s effective value)	kA	20 / 25 / 31.5
6	Rated Peak Withstand Current (peak value)	kA	50 / 63 / 80
7	Grounding Loop Short-time Withstand Current (peak value)	kA	80
8	Grounding Loop Withstand Time	S	4
9	1min Power Frequency Withstand Voltage	kV	42/48
10	Lightning Impulse Withstand Voltage	kV	75/85
11	Auxiliary Circuit 1min Power Frequency Withstand Voltage	kV	2
12	Protection Level	—	IP4X
13	Outline Dimension (Width × Depth × Height)	mm	500×940×2000(1850)

KGNX-12(C) & KGNX-12(F) Cabinet Technical Parameters (Load Switchgear / Fuse Combination Electrical Cabinet)

Serial Number	Project		Unit	Data
1	Rated Voltage		kV	3.6~12
2	Rated Frequency		Hz	50
3	Main Busbar Rated Current		A	630 / 1250
4	1min Power Frequency Withstand Voltage		kV	42/48
5	Lightning Impulse Withstand Voltage		kV	75/85
6	Load Switch Cabinet	Rated Current	A	630
7		Rated Closed Loop Breaking Current	A	630
8		Rated Active Load Breaking Current	A	630
9		Rated Cable Charging Breaking Current	A	10
10		No-load Transformer Capacity for Breaking	kVA	1600
11		Rated Short-circuit Making Current (Peak)	kA	50
12		Rated Thermal Stability Current (4S)	kA	20
13		Rated Dynamic Stability Current (Peak)	kA	50
14	Combination Electrical Cabinet	Rated Fuse Current	A	200
15		Rated Short-circuit Breaking Current	kA	50
16		Rated Transfer Current	A	—
17		Rated Fuse Model	—	SDLAJ/SFLAJ (XRNT)
18	Grounding Loop Dynamic Stability Current (Peak)		kA	50
19	Grounding Loop Thermal Stability Current (2S)		kA	20
20	Auxiliary Circuit Rated Power Frequency Withstand Voltage		V	2000
21	Protection Level		—	IP4X

Frequently Asked Questions

QWhat is the rated voltage range of the KGNX-12 Indoor AC Metal-clad Fixed Switchgear?

The KGNX-12 switchgear supports a rated voltage range of 3.6 kV to 12 kV, making it suitable for a wide range of medium-voltage indoor power distribution applications.

QWhat cabinet types are included in the KGNX-12 series, and what are their differences?

The KGNX-12 series includes three cabinet types: KGNX-12(V) Circuit Breaker Cabinet, KGNX-12(C) Load Switch Cabinet, and KGNX-12(F) Fuse Combination Electrical Cabinet. Each type is designed for different protection and switching functions within medium-voltage distribution systems.

QWhat is the protection level of the KGNX-12 switchgear?

The KGNX-12 switchgear achieves a protection level of IP4X, providing protection against solid objects greater than 1mm in diameter, making it suitable for indoor installation environments.

QWhat are the outline dimensions of the KGNX-12(V) circuit breaker cabinet?

The KGNX-12(V) circuit breaker cabinet has outline dimensions of 500mm (Width) × 940mm (Depth) × 2000mm / 1850mm (Height), making it a compact small-sized cabinet suitable for space-constrained installations.

QAre the XGN68, XGN88, and XGN98 design serial numbers interchangeable?

Yes. The design serial numbers XGN68, XGN88, and XGN98 are identical in cabinet type and can be universally used for this small-sized cabinet, offering flexibility in system design and installation.

QWhat is the rated short-circuit breaking current of the KGNX-12(V) circuit breaker cabinet?

The KGNX-12(V) circuit breaker cabinet offers rated short-circuit breaking current options of 20 kA, 25 kA, and 31.5 kA, with corresponding rated short-circuit making current (peak) values of 50 kA, 63 kA, and 80 kA respectively.