contacts

contacts

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  1. B

    Wifi switch with volt free contacts.

    Anyone know of a decent (and cheap) WIFI switch powered by 230V AC, but with isolated switch contacts? I've used Sonoff BASIC R2 for a few things, but these only give a switched 230V output.
  2. J

    Testing issues!! Dodgy 13 A socket contacts

    Completed a new install recently. 45a 10mm2 SWA Sub main (TT) to an outbuilding and 2 x final circuits- 32a Ring and 6a lighting, nice and simple. Customer might require additional circuits in the future, hence the 10mm2 SWA. Tested the Ring Circuit- end to end all good and as expected. Then...
  3. M

    Latching relay chattering.

    Can you supply a latching coil through it's own set of NC contacts? Or would it try to drop out as soon as it tries to pull in.
  4. Designmen90

    Contactor for lighting - 8NO contacts

    Hello everyone, here I have a situation where I need contactor with 8NO (normaly open) contacts. I found some Schrack device, mini contactor LA100773. LINK: Mini Contactor 4NO, 3A, 230VAC - Online Shop - Schrack Technik International -...
  5. P

    Relay switching max voltage across contacts

    Thought i would put this out there for any experience faced with this design issue. TP Immersion heater 11KW, has built in contactor, coil voltage 400V I want to bring in the immersion heater via control system and ideally not alter the immersion heater package. The control system can operate a...
  6. J

    Motor starter A1 and A2 coil contacts

    Does it matter which part of the coil power is supplied? (can you reverse polarity)? For example can I put the “hot” current carrying conductor on terminal A2 and leave with a grounded conductor from terminal A1 (assuming power supplieD is 120v.) (what about 24V?) Is there a specific type of...
  7. H

    need a capacitor across relay contacts to arrest arcing. wondering about type and value ?

    wondering what capacitor type and value across relay contacts at 7amp ac load to avoid arcing
  8. NDG Elecs

    ADT Door Contracts - poor advice given

    Hi All, been a while since been on. Life very hectic.. Hope all are well.. Anyway.. Very regular customer tied into an exorbitant ADT contract. Last time she called them out was to A) remove magnetic door contact from door and B) return and refit contact on new door.. Cost +£1000.00 yes over a...
  9. L

    New guy, looking for contacts.

    Hi everyone, I’ve been registered on here for a few years but never really used the site, thought I’d say hi! Interested in working abroad if anyone has any thoughts, specifically the Middle East.
  10. B

    Accenta Gen4 - Magnetic Contacts Repeat Failure.

    Something I have found nobody has experienced before, just me unfortunately, but I thought I'd try you guys for one last fault finding. Thank you in advance. Over some years I have had to keep replacing the magnetic contacts on my outbuilding where I have the Accenta Gen4 system setup. Issue...
  11. Dan

    Looking for an Electrical Supplier for a Forum Sponsor - Any contacts or suggestions?

    Hiya lads, hoping somebody can help. CEF appear to have disappeared off the face of the earth. After several attempts to try and get in touch with our contacts there we aren't getting any responses. So it looks like we've lost them as a sponsor for whatever reason. That leaves us with what...
  12. Q

    Ford Focus 2001 Blower switch contacts melting

    Hi, About a year ago I replaced the blower switch on my 2001 Focus because it did not work on any of the 4 settings. When I removed it I noticed slight melting around the plastic housing. The new switch has been in for only a year and as you can see from the photos there is extensive melting...
  13. S

    Stalled motor and volt free contacts on VFD.

    The motor has stalled (trip name StLL) after someone tightened/overtightened screws on flange mounted gearbox. Volt free contacts on Parker SDD 650 frame 1 were still closed (assigned to close only when motor is running). They should open cause they are in series with the contactor coil of...
  14. S

    Why do my bathroom light switches keep failing?

    Hi folks this is my first post on this forum. I have no electrician qualifications but i DO have a degree in physics and know about electricity: i'm a teacher and teach GCSE and A-level students about current, voltage, power, resistance, resistivity, DC, AC, frequency, electromotive force...
  15. L

    Smartphone app

    Does anyone know of a good app for a smartphone to organise appointments and hold customer information etc? Preferably something that would sync up to iphone and iPad etc. Preferably free as I'm just starting out (no smart arses quoting pen and diary please). :)
  16. driverman

    PVC Door alarm contacts

    Hi Guys, Burglar alarm question regarding fitting surface door contacts onto PVC doors. I've fitted a few surface standard everyday type contacts on timber doors and PVC doors before. The doors when in the closed position have been flush with the door frame. Therefor,the contacts are side by...
  17. C

    accentra alarm - no beeps on entry , mag contacts ok tho

    hi accentra / g3 on entering an armed system via front door, no beeps. if seen by pir alarm sounds mag contact on exit door works every time in chime mode ideas? chas
  18. D

    Simple alarm problem

    1st off if it was a simple alarm problem i would have ot sorted and it would no longer be a problem!! Here we go...was sent today to install a simple alarm to alert a shop whem its back doors are opened. 2 rear doors. Both fitted with door contacts. 1 transformer. 1 small control panel with...
  19. sythai

    Door entry alert/ door contacts

    Morning All Fitted for a customer a while back a door entry alert with laser beam detection. Cost well over £100, but has now failed. Not an off the shelf item at wholesaler so bit of a pain to take back/ spare parts etc. Want to replace with a lower cost option, that would be easy to...
  20. Q

    WD40 or Wera Electric Contacts Cleaner

    I've been asked by a client to clean out their connections (sound equipment) - not one I've been asked to do before TBH so not sure if I could use regular WD40 or would I need to use something designed for this purpose like Wera's electrical spray: Wera High Tech Kontaktor Electric Contacts...

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