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Rated Short Circuit Breaking Current 20, 25, 31.5, 40 KA 12kv VMD1 Vacuum Circuit Breakers

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Product Details

Brand Name	Mingde Electrical		Place of Origin	China
Model Number	VMD1

Delivery Time:30 days
Certification:GB1984, IEC

Rated Short Circuit Breaking Current 20, 25, 31.5, 40 KA 12kv VMD1 Vacuum Circuit Breakers

Technical Parameters

NO	Item	Unit	Technical Date
1	Rated voltage	kV	12
2	Rated insulating level	Rated short time power frequency withstand voltage(1min)	42
Raed lighting inpulse withstand voltage (peak value)	75
3	Rated Frequency	Hz	50
4	Rated current	A	630	630	1250	1250
1250	1250	1600	1600
		2000	2000
2500	2500
3150	3150
4000	4000
5	Rated short circuit breaking current	kA	20	25	31.5	40
6	Rated short time withstand current	20	25	31.5	40
7	Rated peak withstand current	50	63	80	100
8	Rated short-circuit closing current (peak value)	50	63	80	100
9	4S rated short-time withstand current 4s	20	25	31.5	40
10	Rated shock steady current	50	63	80	100
11	Rated making surge current of capacitor bank	12.5(The frequency is less than 1000Hz)
12	Rated breaking current of single/symmetrical capacitor bank	A	630/400 (The value shoule be 800/400 while the current is 40kA)
13	Duration of rated short-circuit current	S	4

Ningbo Mingde Electrical Science&Technology Company Ltd: Contact nameMr. Alec Sunn
Chat Now; Phone86-574-63287928; Address151Huapeng Road,Kandun Industrial Park,Cixi City, Weinan, Shaanxi

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