VCH Series<br>Intelligent Indoor Vacuum Contactor with fuse-Xiamen Minghan Electric Co., Ltd.

Intelligent Power Distribution Products

location：Intelligent Power Distribution Products > Medium Voltage Circuit Breaker

VCH Series
Intelligent Indoor Vacuum Contactor with fuse
Features

The next-gen VCH Vacuum Contactor with fuse, featuring epoxy resin encapsulated insulation, is designed for three-phase AC power systems rated at 3.6~12kV with a frequency of 50Hz. This device demonstrates exceptional breaking performance, making it ideal for controlling and protecting electrical equipment such as transformers, motors, and capacitor banks.

Features
Parameter

Product features:

1.The vacuum arc extinguishing chamber and the primary circuit's main conductive components are solidly insulated with epoxy resin using APG technology. This effectively prevents arc chamber leakage, damage, and intrusion of detrimental operating conditions like dust, moisture, or small animals

2.The fuse module employs epoxy resin APG technology for insulating the mounting seat, eliminating insulation risks for the fuse and its holder

3.The device is s withdrawable type and can be placed in the middle compartment of switchgeartIt is compatible with 650mm or 800mm wide cabinets, fit for its mechanical interlocking system without modifications;

4.The product's streamlined design enhances both mechanical strength and insulation performance, thereby improving reliability and stability

5.The withdrawable VCH vacuum contactor with fuseallows fuse replacement when the trolley is pulled out. Per customer requirements, either electrically held or mechanically held type is avaliable

Technical parameters of VCH vacuum contactor

Serial number	Name		Unit	Parameter
1	Rated voltage:		kV	12
2	1min power frequency withstand voltage		kV	42
3	Lightning impulse withstand voltage		kV	75
4	Rated current		kA	400
5	Rated short-time withstand current (4s)		kA	4
6	Rated peak withstand current		kA	10
7	Rated breaking current		kA	4
8	Limit breaking current		kA	4.5
9	Rated closing current		kA	4
10	Maximum permissible semi-wave current		kA	50
11	Rated duty and usage category: Continuous operation			designated for AC-3 and AC-4 usage
12	Number of rated current breaking times		次	250,000
13	Mechanical life expectancy:	operations for mechanical-held	次	300,000
13	Mechanical life expectancy:	operations for mechanical-held	次	500,000
14	Circuit resistance		μΩ	≤150

Technical Parameters for VCH Vacuum Contactor with fuse

Serial number	Name	Unit	Parameter
1	Rated voltage levels	kV	3.6	7.2		12
2	Power frequency withstand voltage for 1 minute	kV	20	32		42
3	Lightning impulse withstand voltage	kV	46	60		75
4	Rated current levels	kA	400	315		160
5	Rated short-time withstand current (4s)	kA	4
6	Rated peak withstand current	kA	10
7	Anticipated short-circuit breaking current	kA	50
8	Anticipated short-circuit closing current	kA	130
9	Main circuit resistance	μΩ	≤200
10	Maximum switching current levels	A	4000		4000		3200

Operating mechanism

number	Name	Unit	Parameter
1	Auxiliary and control circuit rated voltage	V	AC/DC 110/220
2	Closing current	A	5（AC/DC 220V）、10（AC/DC 110V）
3	Opening current (mechanically-held)	A	3.6（AC/DC 220V）、5.6（AC/DC 110V）
4	Holding current (electrically-held)	A	0.5（AC/DC 220V）、1（AC/DC 110V）

VCH SeriesIntelligent Indoor Vacuum Contactor with fuse

VCH Series
Intelligent Indoor Vacuum Contactor with fuse