I. General  

Ø General and reliable design scheme
Ø Mature and reliable vacuum breaking technology
Ø Better operational performance and reliability
Ø Safe, intelligent and friendly interface
Ø Compact structure
Ø Super inner arc resistance
Ø Low installation and maintenance fees

1. Low-voltage pressure box
2. Circuit breaker
3. Main bus
4. Curtain door
5. Grounding Switch
6. Current transformer
7. Cable connection
8. Voltage transformer

II. Basic Parameters and Main Performance 

Items	Unit		Parameters
Product type		\	PIX12	PIX24
Rated voltage		kV	12	24
Rated frequency		Hz	50/60	50/60
Rated power frequency withstand voltage 1 min	Phase-to-phase, phase-to-ground	kV	42	65
	Isolation breaks		48	79
Rated lightning impulse withstand voltage (1.2/50μs)	Phase-to-phase, phase-to-ground	kV	75	125
	Isolation breaks		85	145
Main bus maximum rated current		A	3150/4000*	3150*
Feeder rated current		A	630	630
			1250	1250
			1600	1600
			2000	2000
			2500	2500
			3150	3150*
			4000*	\
Rated short-time withstand current (4s)		kA	25	16
			31.5	25
			40	31.5
Rated peak withstand current		kA	100	80
Inner arc-fault current (1S)		kA	40	31.5
Enclosure protection grade		enclosure	IP4X	IP4X
		Isolation compartment	IP2X	IP2X

III. Switchgear Outline Dimensions (mm) 

Product type		PIX12
Rated feeder current Ir (A)		Ir≤1250	1250≤Ir≤2000	2000≤Ir≤4000
Width (mm)		650/800	800	1000
Depth	Front wiring	1405
	Back wiring	1650*
Height (mm)		2280**

Note:  

Ø  The depth of backpack overhead distribution cabinet is added to 1810mm.

Ø  Add fan case at 4000A current, the height of cabinet is added to 2730mm

Product type		PIX24
Rated feeder current Ir (A)		Ir≤1250	1250≤Ir≤3150
Width (mm)		800	1000
Depth	Front wiring	\
	Back wiring	1910*
Height (mm)		2480**

Note: 

Ø  The depth of backpack overhead distribution cabinet is added to 2110mm.