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

 

Hello,

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

Bertus

 

Hi bertus.....no, no makings or writing at all

 

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

 

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?

 

its off a motor control board for a tredmill...

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

 

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

 

thanks guys, i'll give it a go