relay

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  1. 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...
  2. 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...
  3. 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...
  4. Mishto

    Amptec Electric Flow Boiler Relay Control Alternatives

    Hi All, First post for me . Am about to replace/install two Amptec C900 electric boilers (from old Amptec to newer Heatrae Sadia versions). Under the current regs and specs for these boilers it is recommended that two relay units from Heatrae Sadia (RF 1 & RF 2) are used. One to insure pump...
  5. 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...
  6. H

    Protecting a boiler with a relay

    I am fitting a Heat only boiler that just serves the radiator circuit, the boiler has its own dedicated block terminal connector on the PCB but I cannot connect the pump to it as we normally do, the pump is a commercial type and Worcester Bosch have stated it will damage the PCB because of the...
  7. M

    Electrician Jobs Relpol Relay 8 pin with a zone valve and circulating pump

    I have some problem to hook up a circulating pump with a zone valve and 1 thermostat to control it, can you help me to hook up this correctly.
  8. the pict

    Boiler relay options

    A new. 10k boiler has been installed where there is an existing shower normally i use a RL1 voltage relay but is there perhaps a current sensing relay which can be used instead Pict
  9. R

    No Start - No Crank issue, starter relay help needed

    Hello guys, just found the forum while searching for electrical help with my car not starting. I have a no start no crank issue. It's been running fine until yesterday. Car is an Astra H 1.7 CDTI 2004. With the ignition on, all dash lights are on but no crank. Brand new battery fully...
  10. A

    Relay wiring for pool switch

    Anyone able to throw some light on this, Have power to the relay, the pulse switch switches the relay, but not getting any power on terminals 1 3 or 5, am I missing something?
  11. 8

    Electrician Jobs Need a specific relay - If exists???

    Gents I am requiring a 12Vdc Relay that is normally closed, but I also require the relay to delay before returning to closed position (when de-energised). Are there relays on market that do all this combined or do I require a seperate time delay module of some kind?
  12. C

    AC fan stays on at all times?

    Hello, I have a 1988 Toyota Celica Alltrac (4WD Turbo) and ever since I've owned the car, the front secondary fan (mounted on the front of the radiator and blows into the engine bay) stays on all the time at low speed when the key is turned to the start position (engine off and engine on). Also...
    • Caleb Mueller
    • Thread
    • auto car fan fuse old radiator relay times
    • Replies: 6
    • Forum: Auto Electrician Forum
  13. B

    Rf relay controlling 100a contactor. Chatter over time.

    Hi there. I'll explain the setup first. 25mm 2 cable single phase tncs Into 3ph 100a contactor. Only switching line. Out of contactor into supply side of a consumer unit. Coil Is controlled by separate 6a circuit with a lightwave inline Rf relay. I've changed the contactor as upon...
  14. W

    split charge relay to charge two 6v 4.5ah batteries

    I have two maplin 6v 4.5ah batteries wired in series to power my dashcam while parked. The batteries are similar to this one : Will this split charge relay be ok to re-charge the batteries while driving? Maypole 292 20A Caravan Dual Charge Relay Kit: Amazon.co.uk: Car & Motorbike -...
  15. J

    Powering on 10 Meanwell HLG 240 LED drivers.

    Hello guys. I have 10 x HLG-240 1400A drivers, which will run at 250W each. The problem is, I did not know about the surge upon starting each driver, apparantly I cannot start more than 2 drivers at once per UK plug socket... Please see attached. I guess I could buy 10 different plug in...
    • JackBoy
    • Thread
    • current drivers inrush led led drivers powering relay
    • Replies: 10
    • Forum: Lighting Forum
  16. S

    Vintage car, new indicators and relay very erratic when engine is running

    Restoring a 1938 vauxhall DX positive earth 12v Installed indicators and a relay works fine with the ignition on but flash very erratic when the engine is running 12V ELECTRONIC INDICATOR FLASHER RELAY POSITIVE EARTH GROUND 2 or 3 PIN OPTIONS | eBay -...
    • stevefizz
    • Thread
    • car earth engine new relay running vintage
    • Replies: 4
    • Forum: Auto Electrician Forum
  17. R

    Latching relay circuit for thermal store

    Hi everyone. Hoping someone can help. I'm using a recently qualified electrician to carry out the following work but he wants me to tell him what I want and supply parts for wiring to lpg boiler/thermal store. I would like to have two pipe thermostats on flow and return to store (as close as...
    • Rich d
    • Thread
    • boiler circuit doing electrician relay store thermal
    • Replies: 11
    • Forum: UK Electrical Forum
  18. L

    12v AC door release conundrum

    I need to put an exterior grade switch with a timer, to switch a 12v AC solenoid which is fail-secure- so it needs a momentary voltage to open the gate. All the electronic switches I am finding are 12v DC- but I need AC. I can't just use an ordinary push to make as I need a timer, so the...
  19. G

    Thermostat swithching

    I've fitted a 300ltr thermal store a year ago and have just recently added solar water heating evacuated tubes. What I'm wanting you do next is get the stats to turn on the rads when the water achieves 65c. As the water from the rads returns it lowers the temp to around 45c while the fire is...
  20. J

    12v Dual Supply Relay Problem

    Hi all, first of all sincere apologies for the lack of experience and inappropriate use of symbols! I'm putting together a remote mobile broadband station for use at events that can take a mains supply (transformed to 12v DC) or leisure battery. I've obtained a 12V switching relay which works...
    • jvenning
    • Thread
    • 12v problem relay supply switches switching
    • Replies: 15
    • Forum: DIY Electrical Advice

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