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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 a cutting-edge indoor AC metal-clad fixed switchgear designed for voltage levels ranging from 3.6 to 12kV. This innovative system integrates a compact, multifunctional vacuum circuit breaker or load switch, making it an ideal choice for power reception, distribution, control, and protection in three-phase 50(60)Hz applications. Perfect for use in substations, industrial plants, and skyscrapers, the KGNX-12 features a miniaturized design (W500xD940xH2000mm) that optimizes space utilization by up to 58% compared to traditional models like the KYN 28-1As a reliable solution, it stands out among suppliers in China, showcasing the expertise of our factory in delivering high-quality electrical equipment

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	Category	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 (FAQ)

❓ What 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.

❓ What design serial numbers are compatible with the KGNX-12 cabinet type?

The design serial numbers XGN68, XGN88, and XGN98 are identical in cabinet type and can be universally used for this small-sized cabinet, providing flexible installation and replacement options.

❓ What is the protection level (IP rating) of the KGNX-12 switchgear?

Both the circuit breaker cabinet (KGNX-12(V)) and the load switchgear/fuse combination cabinet (KGNX-12(C) and KGNX-12(F)) carry a protection level of IP4X, ensuring protection against solid particles greater than 1mm in diameter.

❓ What are the rated short-circuit breaking current options for 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 currents of 50 kA, 63 kA, and 80 kA (peak values).

❓ What fuse models are used in the KGNX-12(F) fuse combination electrical cabinet?

The KGNX-12(F) fuse combination electrical cabinet uses rated fuse models SDLAJ / SFLAJ (XRNT), with a rated fuse current of 200 A and a rated short-circuit breaking current of 50 kA.

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

The KGNX-12(V) circuit breaker cabinet has outline dimensions of 500 mm (Width) × 940 mm (Depth) × 2000 mm / 1850 mm (Height), designed as a compact small-sized cabinet for indoor installation environments.