relay

  1. S

    Overload relay in series with contactor latching circuit- Why?

    Recently had to work on Chinese plastics dryer with an overload relay wired in series with contactor latching circuit auxiliary contacts. When the overload trips you can still turn on the motor while the button is pressed. Why is that? It should be tight before the A1 or A2 terminal I have seen...
  2. P

    Headlight DLR relay, auto headlight questions I'm confused !

    Hello all, First post here :) i have a 2003 Jeep Grand Cherokee which I just bought and which I love. However it doesn't have auto lights, only auto rain (which is less useful!). If I leave the headlights in dipped beam position and turn off the car ignition then after 5 min the car switches...
  3. C

    Headlight relay issue

    Hello and thanks for any advice offered. I've just joined so if I'm breaking any rules please forgive... My issue relates to my Renault Trafic campervan. 1989. I've incorporated two relays (one for dipped/one for main beam) into the headlight circuit to increase the light offered by my lamps...
  4. D

    's plan underfloor heating relay tripping rcd

    Hello All I'm currently wiring up an underfloor heating manifold to an s plan system. the heating boiler takes its power off a ring main in a new loft. All circuits in the split consumer unit are RCD protected. I'm following the wiring diagram given in honey well wiring booklet ed 16. Page 14...
  5. B

    In line relay required

    Good morning all. I'm looking for a suitable solution to this problem. I am installing a heating system in a property which is to be controlled zonally via the Honeywell evohome Problem is that the relays for the evohome can only handle 5a maximum and one of the heaters is 1400w - almost 6a...
  6. D

    Adding underfloor heating to a s-plan system

    I am doing the electrics for an extension, part of which is to add a wet underfloor heating system. The current heating is s-plan, the boiler has a pump overrun. The plumber has put in a 2port valve and pump which feeds one zone on the UFH with a remote programmable theromstat. The...
  7. B

    Rocker Switch Problem.

    I have installed a couple lights on my truck and have a rocker switch set to both there is an inline fuse and a relay in each circuit. For my front light bar I had it working perfectly. i then re routed some wires to clean it up and connected it to the battery. No matter if the switch is on or...
  8. K

    Wiring A Relay: for a float switch

    As the title suggests, i'm looking to wire a float switch to a relay. Here's what i have & what i know... I have the following: *12v float switch *240v Eheim pump *12v lugged power supply adaptor (input240v/output 12v) *Relay 12vdc So basically, i need the float switch to switch the the power...
  9. Pete999

    10 Watt LED floodlight

    A question, I fitted a 10 W LED on my new shed and wired it through a relay controlled by a remote, to allow her in doors to switch it on if she wanted to get something from the shed in the dark, problem is the LED flashes when it's switched on, I reckon the problem is too light a load, not had...
  10. M

    Magnetic door sensor to turn on led light problem

    ok so what i am trying to do is. 12v led turns on when the door is open and turns off when the door is closed. But my sensor does it backwards " when the door is open the light turns off and when the door is closed the light turns on... on my tester it shows closed circuit when the magnets...
  11. M

    Is there a danger with relays without diodes

    I came across this LINK on Wikipedia the other day, since then I’ve done some googling and found out this is a known fact that if relay hasn’t got a diode fitted, this might/will cause a spike and might damage something on the Elise S1 circuit. I copy~pasted this form google "Since an...
  12. M

    Earth leakage relay

    Hello, im looking for advice on a dorman smith sensel SRD earth leakage relay. I am doing an EICR on a caravan park, the Earthing system is TT and a sensel SRD relay fitted to load side of 200 amp main switch feeding various pillars. Relays have 4 settings from 30mA to 2000mA with time delay...
  13. S

    relay switching

    I'm wanting to switch a 24v boiler using 240v s plan system. I know I need to pass this through a relay but it's not a regular thing I do. Could anyone post relay type and a drawing please. Boilers 3 grand and don't want to blow it
  14. D

    Second supply line to relay

    Hi, Have a general question here that's not in any way a loaded one, more out of curiosity as I always like to learn how things work. Such a thing would actually be impossible now because the switchboards are locked by the electrical company as well. The builder of the house we live in now, in...
  15. D

    Enclosure for 2 Relay Switches

    I have 2 relay switches to control switching between my Air Source Heat Pump and my Oil fired boiler. I want to mount them on rail within an enclosure similar to a Consumer unit housing. I am struggling to find a neat solution. Any ideas?
  16. K

    Fluorescent lights and relays

    Hi all, I've just been to test a number of faults and have found a number of classrooms have relays on fluorescent lights? Can anyone think of a logical reason why someone would have installed them like this? Thanks in advance.
  17. P

    Relay Wiring

    Hi guys, need some advice. Have a condensate pump to wire up. The pump has a safety switch cable (1 blue, 1 brown wire) that is to be wired into the 'permanent live' to a combi boiler. Therefore, if pump failure occurs, the combi will be shut down (as it condenses in both H and DHW). The...
  18. T

    G59 training courses

    Hello all I'm looking for a g59 training courses, I'm sub contracting for a company mainly doing <4Kw per phase, but now they want to price a couple 100Kw systems and turns out they have got a 48Kw one ready to go which they didn't tell me about until the last minute!! So dose anyone know of any...
  19. joel89

    Contactors and Relays (anti vibration ?)

    I have a panel, on our large hammer forge which causes a hell of a lot of vibration hitting a 5tonne tube, anyway I am loosing my retain on 2 x small contactors LC1 18a which feed a servo and lubrication system and when the tube is nearly forged into a bottle neck shape it also causes a small 5a...
  20. A

    startreck the crafts relays

    captain kirk told the engineer( cant remember his name) to increace the load on the relays(full relay power in fact) is that a wize thing to do whilst in outer space AND in another time zone-->>>>CRAZY any captain shouldnt shout at the engineer especially about his relays its no wonder they...
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