Bridge Rectifier Identification

Discussion in 'General Electronics Chat' started by toki111, Oct 23, 2012.

  1. toki111

    Thread Starter New Member

    Aug 25, 2012
    8
    0
    Hi all quick question :) is they a way to tell what amp/voltage a bridge rectifier should be if its not got it written on it? same kind as this one its for a tredmill http://i.imgur.com/sh7xX.jpg thanks tomy
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    Are there any markings on the rectifier?
    Sometimes there are inkmarkings on the side of the rectifier.

    Bertus
     
  3. toki111

    Thread Starter New Member

    Aug 25, 2012
    8
    0
    Hi bertus.....no, no makings or writing at all
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    Without any markings, you will not know what the specs are.
    I see ampere ratings from 10 to 35 Amperes and voltage ratings from 40 to 1000 Volts.

    Where did you get this rectifier?

    Bertus
     
  5. paulktreg

    Distinguished Member

    Jun 2, 2008
    611
    120
    Have you got access to the associated transformer? If it as any information on it then rate the bridge accordingly?

    You can buy a 35A/400V bridge in a similar package for a few pounds so it may be worth a shot?
     
  6. toki111

    Thread Starter New Member

    Aug 25, 2012
    8
    0
    its off a motor control board for a tredmill...

    the transformer has
    input voltage of 230v, an two outputs..1x17 an 1x10
     
  7. PackratKing

    Well-Known Member

    Jul 13, 2008
    850
    215
    I got some of these years ago, at ratshack the PIV I got was 400v @ 25 amp---> the only 2 I have left, are 50v PIV 25 amp.....R/S part # 276-1185

    Hope that gets you in the ballpark
     
  8. toki111

    Thread Starter New Member

    Aug 25, 2012
    8
    0
    thanks guys, i'll give it a go
     
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