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Y49 type arresters

 

Y49 type arresters

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This is a large arrester with a current withstand capacity of max. 100kA.
·This device is used for the protection of circuits that are prone to especially large current inrush, such as in railways signals, electrical communications, etc., for protection against ground potential rise (emergency linked (bonded) ground), series capacitor protection, and transformer withstand voltage protection.
·Current withstand capacity is extremely large: (8/20μs - 40kA)
·2-electrode type

RoHS compliant

[Dimensions] W66×φ49

 
 
Product characteristics
 
Type Y49-230L Y49-350L Y49-450L Y49-550L
DC sparkover voltage 100V/s 230V±20% 350V±20% 450V±90V 550V±100V
Impulse sparkover voltage 10/200μs 3kV 1.2/50μs
<=1,000V
1.2/50μs
<=1,000V
<=1,500V <=1,500V
AC discharge current AC50Hz 15A,80s 30times
5000A,0.1s 1time
15A,80s 30times
5000A,0.1s 1time
1,000A,0.3s 30times
5000A,0.1s 1time
20A,80s 30times
200A,3s 1time
Impulse discharge current 8/20μs 20kA,30times
40kA,1time
20kA,30times
40kA,1time
100kA,1time -
Insulation resistance >=10,000MΩ
(DC 100V)
>=10,000MΩ
(DC 100V)
>=1,000MΩ
(DC 250V)
>=100MΩ
(DC 250V)
 
Type Y49-700L Y49-1000L Y49-1200L Y49-12kVL
DC sparkover voltage 100V/s 700V±100V 1,000V±150V
(500V/s)
1,200V±200V
(500V/s)
12kV±3kV
(5kV/s)
Impulse sparkover voltage 10/200μs 3kV - - <=2,800V -
AC discharge current AC50Hz 70A,20s 20times
500A,0.3s 10times
70A,20s 20times
500A,0.3s 10times
1,000A,0.3s 10times
5,000A,0.1s 1time
-
Impulse discharge current 8/20μs - - - 40kA,5times
Insulation resistance >=100MΩ
(DC 250V)
>=10,000MΩ
(DC 500V)
>=100MΩ
(DC 250V)
>=100MΩ
(DC 1,000V)
 
 
 
 

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