Re: Varistors - help

["Frank Mc Alinden" <fmcalind@xxxxxxxxxxxxxx>]

Hi Paul
Its best to connect it as close to the source ie coil as
possible......

Frank


----- Original Message -----
From: "Paul Gale" <groups@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Saturday, March 19, 2005 8:02 PM
Subject: RE: [ukha_d] Varistors - help


>
> Frank - should the varistor be placed really close to the coil or does
it
not matter too much?
>
> Paul.
>
> > -----Original Message-----
> > From: Paul Gale [mailto:groups@xxxxxxx]
> > Sent: 18 March 2005 09:13
> > To: ukha_d@xxxxxxx
> > Subject: RE: [ukha_d] Varistors - help
> >
> >
> > Ah, well, I've bought the solenoid from someone else - no tech
data.
> >
> > It's quite small though - about as long as a piece of string ;)
> >
> > Paul.
> >
> >
> >
> > > -----Original Message-----
> > > From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> > > Sent: 18 March 2005 09:04
> > > To: ukha_d@xxxxxxx
> > > Subject: Re: [ukha_d] Varistors - help
> > >
> > >
> > > > How can I tell if it's hefty or not - by the rating
etc?
> > >
> > > Yep...........Though RS should be able to recommend a
varistor seeing
> > your
> > > buying the solenoid from them...
> > >
> > > Frank
> > >
> > >
> > > ----- Original Message -----
> > > From: "Paul Gale" <groups@xxxxxxx>
> > > To: <ukha_d@xxxxxxx>
> > > Sent: Friday, March 18, 2005 7:54 PM
> > > Subject: RE: [ukha_d] Varistors - help
> > >
> > >
> > > >
> > > > How can I tell if it's hefty or not - by the rating
etc?
> > > >
> > > > Paul.
> > > >
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> > > > > Sent: 18 March 2005 08:19
> > > > > To: ukha_d@xxxxxxx
> > > > > Subject: Re: [ukha_d] Varistors - help
> > > > >
> > > > >
> > > > > Hi Paul
> > > > >             If the solenoid is quite hefty might
need  to use a
> > > industrial
> > > > > type suppressor ...got one here its a  MURR
Electronics (25180)
> > device
> > > 24v
> > > > > ac/dc..........used for 24v contactors...would be
able to get
> > > something
> > > > > similiar from an electrical wholesalers but wont
be cheap.......
> > > > >
> > > > > HTH
> > > > > Frank
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Paul Gale" <groups@xxxxxxx>
> > > > > To: <ukha_d@xxxxxxx>
> > > > > Sent: Friday, March 18, 2005 6:16 PM
> > > > > Subject: RE: [ukha_d] Varistors - help
> > > > >
> > > > >
> > > > > >
> > > > > > Well both I think but I'm going to use DC.
> > > > > >
> > > > > > Paul.
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> > > > > > > Sent: 17 March 2005 22:15
> > > > > > > To: ukha_d@xxxxxxx
> > > > > > > Subject: Re: [ukha_d] Varistors - help
> > > > > > >
> > > > > > >
> > > > > > > Hi Paul
> > > > > > >
> > > > > > > > I get the solenoid valve tomorrow.
I guess I just need one
> > > between
> > > > > the
> > > > > > > valve terminals?
> > > > > > >
> > > > > > > Yep thats correct........is it an ac or
dc valve ????
> > > > > > >
> > > > > > > Frank
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: "Paul Gale"
<groups@xxxxxxx>
> > > > > > > To: <ukha_d@xxxxxxx>
> > > > > > > Sent: Friday, March 18, 2005 9:04 AM
> > > > > > > Subject: RE: [ukha_d] Varistors - help
> > > > > > >
> > > > > > >
> > > > > > > >
> > > > > > > > Great, thanks - Frank to the rescue
again ;)
> > > > > > > >
> > > > > > > > I get the solenoid valve tomorrow.
I guess I just need one
> > > between
> > > > > the
> > > > > > > valve terminals?
> > > > > > > >
> > > > > > > > Paul.
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: Frank Mc Alinden [mailto:fmcalind@xxxxxxx]
> > > > > > > > > Sent: 17 March 2005 20:40
> > > > > > > > > To: ukha_d@xxxxxxx
> > > > > > > > > Subject: Re: [ukha_d]
Varistors - help
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Hi Paul
> > > > > > > > >
> > > > > > > > > > Another thought - are
these needed on DC circuits, or is
> > it
> > > just
> > > > > AC?
> > > > > > > > >
> > > > > > > > >  Both ......I use them for
relays etc much better than
using
> > > > > diodes
> > > > > > > for
> > > > > > > > > back
> > > > > > > > > emf suppression....will post a
little later with hopefully
a
> > > part
> > > > > > > number
> > > > > > > > > for
> > > > > > > > > you if you cant find anything
suitable..
> > > > > > > > > Frank
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: "Paul Gale"
<groups@xxxxxxx>
> > > > > > > > > To: <ukha_d@xxxxxxx>
> > > > > > > > > Sent: Friday, March 18, 2005
3:23 AM
> > > > > > > > > Subject: RE: [ukha_d]
Varistors - help
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > Another thought - are
these needed on DC circuits, or is
> > it
> > > just
> > > > > AC?
> > > > > > > > > >
> > > > > > > > > > Paul.
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > > -----Original
Message-----
> > > > > > > > > > > From: Paul Gale [mailto:groups@xxxxxxx]
> > > > > > > > > > > Sent: 17 March 2005
14:36
> > > > > > > > > > > To: ukha_d@xxxxxxx
> > > > > > > > > > > Subject: [ukha_d]
Varistors - help
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > I'm buying a
solenoid valve (24V) from RS along with a
> > > float
> > > > > > > switch
> > > > > > > to
> > > > > > > > > > > control a water
level in a holding tank in the loft -
> > for
> > > > > water
> > > > > > > supply
> > > > > > > > > to
> > > > > > > > > > > an aquarium
downstairs.
> > > > > > > > > > >
> > > > > > > > > > > I've been
recommended to fit a varistor across the
> > > solenoid
> > > > > > > terminals
> > > > > > > > > and
> > > > > > > > > > > float switch
terminals.
> > > > > > > > > > >
> > > > > > > > > > > Can anyone recommend
what type of varistor I should
use
> > -
> > > and
> > > > > > > where?
> > > > > > > > > > >
> > > > > > > > > > > Thanks,
> > > > > > > > > > >
> > > > > > > > > > > Paul.
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > > [Non-text portions
of this message have been removed]
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