12kv High Voltage Vacuum Interrupter VAC307b

Overview

Basic Info.

Model NO.	TD-12/2000-31.5(VAC307B)
Poles Number	3
Type	Circuit Breaker
Certification	ISO9001-2000, CE, CCC
Mechanical Life	10000 Times
Rated Contact Stroke	3~4mm
Rated Clearance Between Open Contacts	10~12mm
Lightning Impulse Withstand Voltage	75kv
Power Frequency Withstand Voltage	42kv
Transport Package	Carton
Specification	VAC307B
Trademark	VACEM
Origin	Wenzhou, China

Product Description

Vacuum interrupter for vacuum circuit breakerTD-12/2000-31.5(VAC307B)
General description

Are you in need of a high-quality vacuum interrupter for your circuit breaker? Look no further than the 12kv High Voltage Vacuum Interrupter VAC307B! This top-of-the-line product is designed with the latest technology to ensure optimal performance and reliability. VI is mainly applied to VZN63-12kV series indoor MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
Crafted with a ceramic insulating shell and copper and chromium alloy contact material, this vacuum interrupter is built to last. It also features a middle sealing or built-in fixed shielding tube, which provides additional protection and enhances its overall durability.
Whether you're in the market for vacuum circuit breaker parts or simply need a reliable vacuum interrupter for your high voltage applications, the 12kv High Voltage Vacuum Interrupter VAC307B is a perfect choice. With its advanced design and superior construction, you can trust that this product will deliver exceptional performance and longevity.

So why wait? Order your 12kv High Voltage Vacuum Interrupter VAC307B today and experience the difference for yourself!Main technical parameter

Specification of VI

Parameter item	Unit	Data
Rated voltage	kV	12
Rated current	A	2000
Rated frequency	Hz	50/60
Rated short-time power frequency withstand voltage(1 min)	kV	42
Rated lightning impulse withstand voltage	kV	75
Rated short-circuit breaking current	kA	31.5
Rated peak withstand current	kA	80
Rated short-circuit making current	kA	80
Rated short-time withstand current	kA	31.5
Rated short-circuit duration	s	4
Rated single capacitor bank breaking current	A	630
Rated back to back capacitor bank breaking current	A	400
Breaking operation of rated short circuit breaking current	times	30
Mechanical life	times	10000
Contact closing force due to bellows and atomsphere	N	160±50
Force required to hold contact open at full stroke	N	260±50
Circuit resistance at lowest rated contact force	μΩ	≤20
Contact limit erosion	mm	3
Internal gas pressure	Pa	≤1.33×10-3
Weight of moving parts	kg	1.6
Storage life	year	20

Specifications required for matched switchgear

Parameter item	Unit	Data
Rated clearance between open contacts	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	3100±200
Contact bouncing duration at closing operation	ms	≤2
Closing and opening non-simultaneity of contacts	ms	≤2
Maximum rebound during opening	mm	≤2
Rated contact stroke	mm	3.5±0.5

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