Siemens 3AH3 User Manual

9229 9860 176 0E 3
2013-08-22
Table of contents
For your safety ................................................................................................................................................... 2
Transport, storage and packing .................................................................................................................. 5
Transport ...............................................................................................................................................................5
Unpacking (I) .........................................................................................................................................................6
Unpacking (II) ..................................................................................................................................................... 10
Unpacking (III) .................................................................................................................................................... 12
Reusing the transport unit .................................................................................................................................. 15
Storage ...............................................................................................................................................................15
General information ....................................................................................................................................... 17
Range of application ...........................................................................................................................................17
Standards ........................................................................................................................................................... 18
Design approval as per X-Ray Ordinance ..........................................................................................................18
Scope of delivery ................................................................................................................................................18
Description ........................................................................................................................................................ 19
Design .................................................................................................................................................................19
Locking devices ................................................................................................................................................. 32
Rating plate ........................................................................................................................................................ 35
Technical data .....................................................................................................................................................35
Ambient conditions ............................................................................................................................................. 36
Installation altitudes ............................................................................................................................................36
Switching times .................................................................................................................................................. 37
Circuit diagrams ................................................................................................................................................. 38
Mounting ............................................................................................................................................................. 43
Attachment in the switching cubicle ....................................................................................................................43
Earthing .............................................................................................................................................................. 45
Electrical connection of the prime conductor ..................................................................................................... 47
Operation ............................................................................................................................................................ 49
Commissioning ...................................................................................................................................................49
First closing operation .........................................................................................................................................50
Closing ................................................................................................................................................................51
Opening ..............................................................................................................................................................51
Maintenance ...................................................................................................................................................... 53
Maintenance and servicing .................................................................................................................................53
Interrupter service life ........................................................................................................................................ 56
Accessories and spare parts ...............................................................................................................................56
Manufacturer's product liability ........................................................................................................................... 57
Disposal ..............................................................................................................................................................57
Service ................................................................................................................................................................57
Index of keywords .......................................................................................................................................... 59
Legend for all pages ...................................................................................................................................... 61
Note
Sections with Addendum (I), (II) or (III)
Sections with Addendum (I) refer to vacuum circuit-breakers with a rated operating current of < 3150 A. Sections
with Addendum (II) refer to vacuum circuit-breakers packed with brackets with vertical connecting bars and a rated
operating current of ≤ 4000 A. Sections with Addendum (III) refer to vacuum circuit-breakers with a rated operating
current of  3150 A.
If no addendum is given, the information is applicable for all 3AH3 vacuum circuit-breakers.
Siemens Parts

Siemens 3AH3 Specifications

General

Brand	Siemens
Model	3AH3
Category	Circuit breakers
Language	English