1. R

    +12V 200A Relay Isoator or DC to DC charger

    Hello I currently run a lead acid 102A auxilliary battery under the bonnet of my Nissan Patrol for the purpose of powering a 70 litre Waeco car fridge. I intend putting in a second auxilliary battery (AGM type 130A) in the rear of my Patrol to get some more life out of the fridge. The current...
  2. 3

    Rear Wiper motor relay wiring

    My rear wiper motor is connected via a Lucas SRB501 5pin relay from the loom to the motor. I have no reference for wiring. The motor has power as it parked, but won't operate from its brand new switch. I just wanted to double check my wiring, before ordering a new relay, if it is needed. So far...
  3. D

    Safety relay circuit diagram for a robot cell. Please Help

    so i have been given this diagram and no explanation on what nay of it does, its for a safety relay for a robot cell it says this: 'Safety relays can made up of 3 relays (CR1-3) to ensure redundancy and cross monitoring, and can be applied to the following applications: ■ Emergency Stops ■...
  4. D

    Time relay control circuit

    Hello to everyone. I'm designing a control circuit. But I am having a problem somewhere. The time relay will output at a certain time and the lamp will turn on. But if I press the Stop button 1 time, I would like the lamp to permanently cut off the energy even though the timer continues to...
  5. D

    Draw a start/stop/retain relay control circuit for a 3 phase drill machine

    Hey, I'm just wonder if I can get some feedback on this drawing that I've made? any feedback will be very appreciated thanks in advance.
  6. P

    Wiring an add on DRL to vehicle - relay use and diode?

    Hi My daughter wants to add some DRLs to her car. The wiring diagram attached is being followed. I had heard that relays require a diode across the coil so I have shown one in the illustration (see grey line work). Is a diode actually required in this application or not? Thanks DRL = daytime...
  7. J

    Omnik Inverter throwing Relay Check Fail Fault

    Have a fault reading; Relay check fail. Done some research and replaced the x2 check relays with quality components. Still have the same fault sadly. Any thoughts ?
  8. udud22

    3 Phase Control Relay

    Hi, I am new to HV Electrical Stuff. I am trying to use a emergency stop button to kill power to BOX A remotely. The wall socket has 3 phase 380V supply without neutral. I want to introduce a control relay between BOX A and Wall socket. The remotely operated cable (20 metres) with Emergency...
  9. D

    Relay wiring assistance

    I have 3 locations that have a relay controlling a pump, each site is several miles from each other and when my SCADA system calls for RUN all three relays energize at the same time. What I need is a local control that allows only 2 pumps to run at the same time but they need to alternate...
  10. V

    Relay Coil Question

    Hello. I'm doing a project in my car with the help of a relay. It is working fine but I need some advice on something. The circuit that serves as a switch to the relay provides 12v with the car off but with the engine running it provides around 14v. My question is, is this too much for the relay...
  11. G

    Can anyone help with wiring a wifi relay module?

    I've got this wifi module that is supposed to be able to be used on a 2 way lighting circuit. I temporarily rigged it up to a mains plug with a 2 way switch and a 1 way as if it were on the stairs.A works well.then when i put it in situ it doesn't work I have a live and neutral to the switch...
  12. V

    Relay Noise

    Hello everyone! I'm doing a project in my car where I have those kind of courtesy lights on your feet when you open the doors. To achieve this I used a relay, the switch to turn the relay on is the lights on the roof and the power for the LEDs comes from a piggyback fuse from the fuse box. With...
  13. D

    Schneider XPSAF 5130 Safety Relay

    Hello everyone. I'm new to this forum site. I wish everyone good work. The question I want to ask is; I have the Schneider XPSAF 5130 Safety Relay. With this relay How can I have the engine stop when a sensor stops output (eg when the cell door is opened). Manual (Click This)
  14. B

    Adding a relay to the timer on my submersible 1/2hp 230v pump. It was recommended by the timer manufacturer.

    Looking for advice to add a relay to a well pump timer. 1/2 hp 230v submersible @750’. The timer is rated at 10amp. 1578238119 Does anyone have any recomendations?
  15. Z

    Coil relay switching 2 power supplies

    Hey, Total noob here so please be patient 😊 I have two power supplies mains 220v in a type of small cabin/house every day around 8am they cut of the good supply and leave it off for a few hours then turn it back in again. What I would love would be a contraption that switches between the...
  16. W

    Warrick 1d1d0 relay, dangerous? paid 1 dollar at thrift store.

    Hello, new guy here and I'm not sure of correct section or even correct forum for this question. At a local thrift store I purchased a Warrick 1d1d0 relay, looked interesting for a dollar. I play with home electric power and it looked interesting. Any way the input is 115v and the output is...
  17. D

    Help identify 7 pin relay

    Hi, I am new here. I am a farmer in the Highlands of Scotland working on an electrical fault in an old Massey Ferguson 390T tractor made in 1992. I think the fault may be in a relay. This is a 7 pin solid state relay labeled "warning light dimmer" on the circuit diagram (see below). The Lucas...
  18. S

    Rewiring fuel resistor relay

    hey :) i have a fuel resistor relay that a bloody melomy has chewed, it also chewed a hole in my battery and made it leak. i have attatched photos, just wondering if anyone could help me out with which black wires go where to attach the plug back onto the relay? much appreciated if anyone can...
  19. 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
  20. B

    Crank BUT no start relay (85 socket) wiring issue

    Hello guys I own a BMW E39 which developed a crank no start issue. No codes are being thrown but my initial thought was fuel. So I checked the fuses (all ok) and then moved onto the relays. I removed the relay and its ok then checked the socket and discovered the relay base is showing 4v on the...
  21. L

    Energize a contactor/relay from multiple toggle (not momentary) switches?

    Is it possible to energize a contactor/relay from multiple toggle (not momentary) switches in a way similar to 3-way switches? If so, what components and setup would do that? The purpose is to control lighting from several sources and the reason for not using simple 3-way switches is that the...
  22. T

    Need Advise!! Help me with this wiring. NPN sensor/Solid State Relay

    Is this the correct way of wiring npn sensor 4 wire with solid state relay and solenoid valve?
  23. O

    Current limited charge relay

    Hi there, I am looking to charge an auxiliary windlass battery (130Ah lithium) that is located 35 feet away from my main bank (1030Ah lithium). My charging input will range from to 40 to 100 Amps, but I need to keep the wire size to a maximum of 6AWG. Do you know of any current limited charging...
  24. D

    Relay wiring for van AC

    Hi, I’ve been trying to retrofit AC to my Mercedes sprinter motorhome, I have most of the kit but some of the wiring is missing. I have managed to find a decent wiring diagram for the entire van but having trouble with this section. I know the symbols (ringed in blue) are called...
  25. R

    relay cause flat battery?

    Hi, Apologies if this is the wrong place for this but want to confirm something. I have wired up a 12v lightbar on my ATV using the attached wiring loom layout, but I have been told by some that this setup will cause the battery to drain/go flat over time due to the relay always having current...
  26. P

    Citroen Relay Window Weirdness

    Hi there.. I have a 2013 Relay. The electric window switches in the drivers door started playing up, only working intermittently. I took off the door panel and looked at all the wiring.. all looking intact as far as I can see. The passenger window works from the passenger door switch perfectly...
  27. 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...
  28. 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...
  29. 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...
  30. 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...
  31. 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...
  32. 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
  34. 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...
  35. 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...
  36. 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...
  37. 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...
  38. 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.
  39. 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...
  40. 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...
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