9229 9862 176 0D 3
2013-08-28
Table of contents
For your safety ................................................................................................................................................... 2
Transport, storage and packing .................................................................................................................. 5
Transport ............................................................................................................................................................. 5
Unpacking (I) ....................................................................................................................................................... 6
Unpacking (II) .................................................................................................................................................... 10
Reusing the transport unit ................................................................................................................................. 13
Storage ............................................................................................................................................................. 13
General information ....................................................................................................................................... 15
Range of application ......................................................................................................................................... 15
Standards .......................................................................................................................................................... 16
Design approval as per X-Ray Ordinance ........................................................................................................ 16
Scope of delivery .............................................................................................................................................. 16
Description ........................................................................................................................................................ 17
Design ............................................................................................................................................................... 17
Locking devices ................................................................................................................................................ 30
Rating plate ....................................................................................................................................................... 33
Technical data ................................................................................................................................................... 33
Ambient conditions ............................................................................................................................................ 34
Installation altitudes .......................................................................................................................................... 34
Switching times ................................................................................................................................................. 35
Circuit diagrams ................................................................................................................................................ 36
Mounting ............................................................................................................................................................. 43
Attachment in the switching cubicle .................................................................................................................. 43
Earthing ............................................................................................................................................................. 45
Electrical connection of the prime conductor .................................................................................................... 46
Operation ............................................................................................................................................................ 49
Commissioning ................................................................................................................................................. 49
First closing operation ....................................................................................................................................... 50
Closing .............................................................................................................................................................. 51
Opening ............................................................................................................................................................ 51
Maintenance ...................................................................................................................................................... 53
Maintenance and servicing ............................................................................................................................... 53
Maintenance plan .............................................................................................................................................. 54
Interrupter service life ....................................................................................................................................... 58
Accessories and spare parts ............................................................................................................................. 58
Manufacturer's product liability .......................................................................................................................... 59
Disposal ............................................................................................................................................................ 59
Service .............................................................................................................................................................. 59
Index of keywords .......................................................................................................................................... 61
Legend for all pages ...................................................................................................................................... 63
Note
Sections with Addendum (I) or (II)
Sections with Addendum (I) are about the standard equipment. Sections with Addendum (II) refer to vacuum cir-
cuit-breakers of the type 3AH4305-7/8 and 306-7/8. If no Addendum is used, the information applies to all vacuum
circuit-breakers3AH4.
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