1.14kV Vacuum Interrupter for LV Vacuum Contactor, TJC-1.14kV/1000A～1250A (VAC208A)

TJC-1.14kV/1000A～1250A (VAC208A)

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Specification Code:TJC-1.14/1000 (VAC208A)

TJC-1.14/1250(VAC208A)

VACEM vacuum interrupter is mainly applied to VCKJ5-1.14kV /630A LV AC vacuum contactor. Meets or exceeds the requirement of IEC60947-4 and GB/T14048.4-2001

Main technical parameter

Specification of vacuum interrupter

Parameter item	Unit	Data
Rated voltage	kV	1.14
Rated current	A	1000/1250
Rated frequency	Hz	50/60
Rated short-time power frequency withstand voltage(1 min)	kV	10
Rated lightning impulse withstand voltage	kV	16
Rated connecting current	kA	10
Rated breaking current	kA	8
Rated maximum sectional current	kA	8
Rated minimum sectional current	A	250
Rated short-time withstand current	kA	8
Rated short-circuit duration	s	4
Mechanical life	ten-thousand times	50
Rated breaking time AC3	ten-thousand times	15
Rated breaking time AC4	ten-thousand times	6
Contact closing force due to bellows and atmosphere	N	90±20
Force required to hold contact open at full stroke	N	110±30
Circuit resistance at rated contact force	μΩ	≤50
Contact limit erosion	mm	2
Storage life	year	20

Specifications required for matched switchgear

Parameter item	Unit	Data
Rated clearance between open contacts	mm	2.5±0.2
Average opening speed	m/s	0.6±0.1
Average closing speed	m/s	0.3±0.1
Rated contact pressure	N	150±20
Contact bouncing duration at closing operation	ms	≤3
Closing and opening non-simultaneity of contacts	ms	≤2
Rated contact stroke	mm	1.1±0.2

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