China China Wholesale Electrical Main Distribution Board Suppliers – ZW8-12 Vacuum Circuit Breaker – L&R Manufacture and Factory

China Wholesale Electrical Main Distribution Board Suppliers – ZW8-12 Vacuum Circuit Breaker – L&R

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We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for Power Transformer Station, Lt Switchgear Panel, Electrical Switchgear Okhla, We have exported to more than 40 countries and regions, which have gained good reputation from our costumers all over the world.

China Wholesale Electrical Main Distribution Board Suppliers – ZW8-12 Vacuum Circuit Breaker – L&R Detail:

Specification

Serial number	parameter name	Value
1	Rated voltage	12KV
2	Rated current	630A
3	Power frequency withstand voltage	42kV/48kV
4	Mechanical life	10000
5	Isolation new port disconnect distance	> 200mm
6	Average opening speed	1.0+0.2m/s
7	Average closing speed	0.7+0.15m/s

Parameter

Rated voltage			KV	12
Max. operating voltage			KV	12
Rated current			A	630
Rated short circuit load breaking current			KA	20
Rated short circuit making current (peak)			KA	50
Rated p-eak withstand current			KA	50
Rated short time withstand current 1 min			KA	20
Rated insulation Power level	Power frequency withstand voltage (dry)		KV	42
	Lig htning impulse withstand voltage (peak}		KV	75
Rated operating sequence				(O)-0.3s{CO)-180s (CO)
Mechanical life			time	10000
Nos of breaking rated short circuit breaking current			time	30
Rated dosing voltage of operating mechanism			V	110,220
Rated opening voltage of operating mechanism			V	110,220
Opening distance of contact			mm	11 ±1
Over travelling distance (spring compressed length of contact}			mm	3
Asynchrony of opening or closing three phases			ms	≤2
Jumping time of contact closing			ms	≤2
Average opening speed			s	1.0±0.2
Average closing speed			s	0 7±0.15
Opening time		Under highest operating voltage	s	0.015-0.05
		Under lowest operating voltage	s	0.03-0.06
Closing time			s	0.025-0.05
Main circuit resistance of each phase			卩C	≤120
Permissible abraded thickness of moving and static contacts			mm	3

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Our mission is to become an innovative supplier of high-tech digital and communication devices by providing value added design, world-class manufacturing, and service capabilities for China Wholesale Electrical Main Distribution Board Suppliers – ZW8-12 Vacuum Circuit Breaker – L&R , The product will supply to all over the world, such as: Malta, Lithuania, venezuela, Strict quality control is executed in each link of the whole production process.We sincerely hope to establish the friendly and mutual-beneficial cooperation with you. Based on high quality products and perfect pre-sales /after-sales service is our idea, some clients had cooperated with us for more than 5 years.

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Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,

By Adela from British - 2017.11.11 11:41

This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.

By Monica from Kenya - 2018.09.29 17:23

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