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LA60 - B and LA25 - B technical specification and
Application design lightning current type lightning protection device (class B specification) is used for the purpose of preventing with external lightning protection system in the building of the lightning protection equipotential connection. Lightning protection device will prevent lightning protection system and power supply circuit between equipotential connection. It is also applied in through the overhead line transfer low voltage electric source in a building, because direct lightning current or part of the lightning current may also in this occurs.
Function lightning current type lightning protection device is the key of the high capacity clearance discharger. Its working principle is in two arc contact occurs between arc discharge voltage. Due to the shape of the electrode, the arc are guided to the top of the external electrode. In this position, arc hit partition, for example: clearance discharger another part is divided into small points arc, from the arc contact contact surface clear and separate. Therefore, to ensure that even power subsequent electrical flow can be controlled.
Position/install the device can be installed without any problems, because its base size is according to save a space of 17.5 mm grid size design, but simply the card in the top rail installation.
Characteristic through the integrated double terminal, electrical connection is further simplified. Because wires have a cambered surface, and other equipment necessary safe distance between must refer to attached technical information. To coordinate with use V20 - C arrester of LA clearance discharger joint, such as removing lightning protection device of the coupling, ensure line length of at least 10 meters. Otherwise, should use LAI - 35 type inductance equipment decoupling. Technical data:
Model LA 60 - B LA 25 - B
UN rated voltage 230 V / 50-60 hz
Maximum continuous working voltage UC 400 vac
Conform to the VDE0675 part 6 (November 1989 draft) VDE0675 6 / AI part of the specifications of the standard classification B
Voltage protection level UP < 4 kv
Response time tA < 100 ns
Pulse current (10/350) current peak Imax charge Q ratio can W/R 60 ka 30 AS 900 kj/O hm 25 ka 12.5 AS 160 kj/O hm
Pulse current (8/80) 100 ka 50 ka
Maximum spare fuse short-circuit withstand voltage and karpm 250 A gl 125 A gl
In Ur place no backup fuse short circuit current extinguished 3.5 Karpm 2.5 Karpm
Temperature range - 400 - C - + 800 C
Relative humidity maximum reaches as high as 90%
Protection type IP20
Connection cross section 2.5-35 best callus induction
Installation insert 35 roof guide, accord with the German industrial standards EN 50022 standard
The color black, RAL 9005
Material polyimide 6
DIN43880 standard size LA60 - B LA25 - B width 35.0 mm deep 55 mm wide and 17.5 mm deep 55 mm
OBO decoupled device
Type LAI - 35
Rated voltage UN 500 v
Rated current IN 35 a / 40 ° C
Rated inductance LN 7. 5 mh
Dc inductance RDC 4. 5 mw
DW43880 conform to the standard size wide 35 mm deep 55 mm
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