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  1. A

    Trainee 5 Pin Relay Question

    Hi, I have an aftermarket ignition coil harness utilizing a 5 pin relay, the relay is corroded and doesn't work. It's also discontinued by Denso and they don't have a wiring diagram for it (P/N 056700-7240). I managed to source a similar harness from a later model which has a slightly...
  2. H

    12V DC Relay Issues (Diesel Engine)

    Hello all. I am having an issue with a 12V DC Relay I am trying to install to run a kill switch on a John Deere Diesel engine that runs a high pressure water pump. I have the relay wired in such that it will send power to the ignition when an electrical signal comes from a water sensor in the...
  3. P

    Volt sensing relay calculation

    Hello, pls do no kill me for being this stupid (i am a videographer in nature :), and i need to make an order before my electrician returns from hospital... I want to add leisure batt to my 1987 VW t3 Caravelle along with volt sensing relay and i cant figure out how to calculate the system...
  4. Jberry

    2 electric showers and melted live wire from relay

    This unit is running two showers. Unit was smoking while one shower was running, never tripped the safety switch. Power to one shower is cut off while the other is in use. Is it ok just to change out the relay that had burned? I'm not an electrician but one will be doing the work. The house is...
  5. S

    GSM Relay to gate motor

    Hi all I would like to wire a GSM gate opener to my gate motor, but I'm not 100% sure about the inputs. I would like to be able to call the GSM and have the gate open and remain open until I call the GSM again. My plan was to wire up the COM terminal of the GSM to terminal number '2' on the...
  6. S

    Relay controlled by power to an LED

    Hi, I have a 12V output from a control box that lights an LED. I want to use that output to switch power to a camera, but don’t want to lose the LED. The LED has a resistor in series. My first thought was to just put the camera in parallel with the LED, but then thought a relay with the coil in...

    Earth Leakage Relay connection with normal CT

    Hi Can I connect normal Current Transformers (CT) instead of Core Balance Current Transformers (CBCT) to Earth Leakage Relay.. Thanks
  8. J

    Relpol relay (non-latching) - help needed!

    Hi, I purchased a relay and relay base in order to control my doorbell whilst using a Nest Hello: the Nest product takes 24V, whereas the doorbell only wants 8V. So the relay closes the circuit when receiving power from the Nest and the doorbell is separately powered by an 8V transformer. All...
  9. O

    Interior light problem - relay?

    Hi folks, I did post months ago about my Isuzu pick ups interior lights not coming on when doors open but I never did any more about it in the summer. Now that the nights are closing in I must get it sorted. I have a dome and a reading light, both work fine when switched to on but neither come...
  10. J

    Overload relay with aM fuse

    Hi Can we use an aM fuse with overload relay,? If yes can an aM fuse protect the conductors from damage incase of short circuit Since i suppose aM fuses are used only for motor protection and cable. How will cable protection achieved when aM fuse is used with an overload relay Please explain...
  11. Tardigrade

    Could a relay switch be causing the havoc in my home?

    Hi guys, Don't know if I picked the wrong builder, products, am desperately unlucky or its the relay switch...all help much appreciated! Background facts • Back to bricks refurb of duplex flat, all new wiring etc. • Upstairs en suite utilises same in line fan as existing bathroom. Builder...
  12. I

    Vesda vls relay disabling

    Can you guys tell me how to disable relays in vesda to make it normal working condition .thanks alot. Hoping i will get some good knowledge from you superiors.
  13. P

    Chinese Universal Car Alarm System - !!!Immobiliser Relay wire issue!!!

    Hi guys I bought kit of ,,360 Degree Universal Car Remote Control Central Locking System Kit Car Security Alarm Immobiliser Shock Sensor for 2 Doors,, for my Nissan Navara 1991 and I am struggling with Immobiliser Relay wiring. I am posting here wire diagram of my alarm and I will really...
  14. M

    24vDC relay to Switch 230vAC light circuit

    Hi Guys, New to the forum, and probably posting this in the wrong place but hope you can help. I have a garage door control panel that has a 24v dc output (4 W max) that activates when the door is in operation. I want to use this to activate my relay and switch the live to a 230v light circuit...
  15. Leesparkykent

    Fibaro relay and two way switching.

    Any one used one before? Picked up a job with a complete cockup on the wiring of the switching. Basically it boils down that I don't have enough cores to get the two way working...after a bit of googling I found this Vesternet APNT-92 - 2-Way Lighting using Fibaro Relays | Home Automation...
  16. N

    Domestic Adding a relay to Thermostat

    Hi forum, I am trying to fit a relay to my boiler and then to a raspberry pi zero. The pi has a humidity and temperature sensor to moderate the heating. This is basically a DIY 'Nest' project. The current setup is an age-old thermostat and analog timer. I've wired my relay with Common...
  17. F

    Does such a relay exist? Or be built?

    I was wondering if anyone could tell me if the following relay exists, or can be easily built using off the shelf parts? I need to monitor 3 x 240V inputs and switch 1 x 240V output. However, every time one of the inputs is activated, I need the output to disengage for a period of time before...
  18. B

    Starting car relay issue???

    Hi all thanks for any help in advance!! I’m having a issue with a car that will only start if I use a bigger starter motor relay, the car originally uses micro relays from the factory, the car so far has had a new starter motor, new ignition switch and a brand new micro relay none of which have...
  19. S

    Simple relay for secondary pump circuit

    I am looking for guidance on adding a second pump for the underfloor section of my central heating. I am using a blending valve for the UFH supply by teeing off the main boiler feed into the 3 way valve and then to the pump and UF circuit valves (2). I am ok with the wiring I simply need a relay...
  20. poumpouris

    Central heating controlled by raspberry pi and relay switch

    Hey guys, im not a professional electrician, I just have a basic knowledge of some stuff. In order for me to be able to explain what i want to do, I will first explain what is in place at the moment. We have a 3 zone programmer which we never use as a programmer, we just turn on each zone...