Indoor VCB

VS1

Storage, making and breaking by motor, It can operating by handle.
Breaking short-circuit current up to 25kA.
Mini motor spring mechanism (about 30W).
Installation method: adopt two type installation method.
Sealing performance: adopt reliable sealing technical.
Incoming & Outgoing method:adopt silicon bushing to make enough insulate distance
Safe operating: there is an equipment to protect explosion.

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Specifications

VS1(ZN63 ) series vacuum circuit breaker is an indoor three-phase AC high-voltage switchgear of 50 Hz and rated voltage 12KV, made by introducing the technology of Swiss ABB Company and according to domestic industrial development and production capacity. The entire structure of this product presents the integrated installation of switch body and operating mechanism. It adopts the composite insulation structure, with high insulation level, no pollution or explosion danger. Its operating mechanism is of spring energy-storage type, which be operated with alternating current or by manual.

Technical Data

Item		unit	parameter
Rated voltage		kV	12
Rated insulation level	1 min line frequency withstand voltage	kV	42
Rated insulation level	rated thunder impulse withstand voltage	kV	75
Rated current		A	630,1250,1600,2000
Rated short circuit breaking current		kA	20,25,31.5,40
Rated short circuit closing current		kA	50,63,80,100
Rated peak withstand current		kA	50,63,80,100
Rated short circuit withstand current(effective value)		kA	20,25,31.5,40
Rated current breaking times		times	50
Rated short-circuit duration		S	4
Rated operating sequence		times	O-0.3s-CO-180s-CO
Mechanical life		times	20000
Rated single capacitor bank breaking current		A	630
Rated back-to-back capacitor bank breaking current		A	400
Contactor torque		mm	11 1
Contact stroke		mm	3 0.5
Three-phase opening synchronization		ms	≤2
Closing bounce time		ms	≤2
Phase-to-phase distance		mm	210 1.5(275 1.5)
Contact pressure of closing contact		N	3200 100
Average break brake speed		m/s	0.9~1.2
Average close brake speed		m/s	0.55~0.8
Breaking time		ms	20~50
Closing time		ms	35~70
Accumulative Allowable Wear Thickness of Dynamic and Static Contacts		mm	3

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Technical Support

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What information should I provide for product selection?

Please provide the application, system rated voltage and frequency, continuous load current, short-circuit level, insulation level or BIL, and the required operating duty. Also include indoor or outdoor installation, altitude, ambient temperature, pollution level, control voltage, communication requirements, quantity, destination market and applicable standard. A single-line diagram, existing nameplate or project specification will make the review more accurate.

How do I choose between a recloser, circuit breaker, load break switch, disconnector and fuse?

A recloser is generally used for automatic fault interruption and service restoration on distribution feeders. A circuit breaker provides repeated fault interruption, a load break switch is intended for rated-load switching within its specified capability, a disconnector provides an isolation point, and a fuse provides single-operation overcurrent protection. The final choice must be based on load current, fault level, protection coordination, switching frequency, installation method and operating philosophy.

Which ratings and standards must be confirmed before ordering?

Confirm the voltage class, frequency, rated current, short-circuit breaking and making duties, insulation level, creepage distance, mechanical or electrical endurance, enclosure protection, control supply and auxiliary contacts. The applicable IEC, IEEE, ANSI, GB or project-specific requirement should be stated in the inquiry. The approved data sheet and drawing, rather than only a general product family name, define the final supply.

Can Pomanique help replace existing equipment or confirm interchangeability?

Yes, a technical comparison can be made when sufficient information is available. Please send the existing model and nameplate, general arrangement and mounting dimensions, terminal interfaces, wiring diagram, interlocks, operating mechanism and electrical ratings. Similar voltage and current ratings do not by themselves confirm mechanical or electrical interchangeability, so approval is required before replacement.

How are surge arresters and composite insulators selected?

Selection should consider the system grounding method, maximum continuous operating voltage, temporary overvoltage, required protective level, system insulation level, altitude, pollution severity and creepage distance. Mechanical loading, housing material and installation orientation also matter for outdoor equipment. Provide the system and site data so insulation coordination can be reviewed as a complete set.

Are OEM, ODM and customized configurations available?

Customization can be evaluated according to technical feasibility, validation requirements and order quantity. Typical requests include labels and packaging, terminal arrangements, mounting dimensions, control voltages, transformer ratios, accessories, communication functions and project documentation. Customized production should begin only after the technical specification and approved drawings are confirmed by both parties.

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Application data

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