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  1. B

    Can I use this Time Delay Switch on a panel heater?

    Just a quick one! I believe this time delay switch should work for my old panel heater (1.25kwh) because it handles loads up to 16A. Can anyone confirm this for me? I had someone tell me I needed a fused spur switch but others tell me I don't. FYI: the aim is to ensure the panel heater turns...
  2. S

    TIme Delay Switch

    Hello, I have a 12VDC battery bus where I charge with solar PV and a wind turbine. The system is controlled using a Siemens PLC. When there is a system fault, the PLC will open all relays, but this included relays that power the PLC itself (example an emergency pushbutton). When restarting the...
  3. Dan

    Text delay when typing is now fixed.

    There was a slight delay when you were typing and it was down to the smilies bar I had installed. So I've removed it. But not the smilies. Those are added to a post by clicking the happy face in the text options area now.
  4. A

    Delay of around 30 second lightswitch?

    I'm trying to find a way to delay the lights coming on after the switch is turned on - this is so I don't disturb my wife when I go to our ensuite bathroom which has the light outside the room. I've thought of 4 ways: 1) Put a pull switch inside the bathroom - it's not our flat, so that would...
  5. S

    Adding PV diverter to battery system - using delay switch??

    I am trying to add an Apollo Gem diverter to my battery grid tied system (Victron ESS). It is not going to work because both systems are fighting for the surplus solar power to either charge the battery or divert to immersion. If I add a delay timer switch in the immersion circuit so the load to...
  6. N

    Stroma Certification Scheme Delay joining Stroma

    Anyone else had a delay joining Stroma. 5 weeks since my assessment ( passed) and nothing back from Stroma. On contacting them I get fobbed off with “ there is a backlog “ story.
  7. S

    Headlights on Smartcar delay in switching on

    I recently purchased an old 2003 Smart Car as a 2nd run around car. I've noticed recently that some times when I turn the head lights to dipped or main beam there might be a long delay before they actually switch on. Some days it is instant and others I have this problem. Also the dash back...
  8. TheGronk

    Time clock recommendations

    can anyone recommend a digital time clock, either din rail or surface mounted with count down the on-off with some kind of start button function instead of having time frames in which it’s on or off Many thanks
  9. B

    Time Delay RCD For A commercial premises

    I have changed a new fuse board in a Shop with about 4 Fridges and i have got a problem with the RCD keep tripping and I put 100ma time delay RCD instead of the 30ma and the RCD Tripped few times and then stopped tripping all the test was passed but I don't know if this comply with the regs or...
  10. N

    EATON MCCB Trip Parameters

    I am to replace an old MCCB with a new Eaton one, the circuit feeds a few boards and the current rating for the circuit is 160A. What I'm trying to understand is the 4 trip parameters that you select yourself on the breaker. These are: IR - Continuous current setting (A) tR - Number of...
  11. rustynails

    NICEIC Certification Scheme NICEIC Online Certification Rated Time Delay

    Could someone who uses this software tell me what the Rated Time Delay box is for when filling out the Main switch/ Switch-Fuse/ Circuit-breaker/ RCD section of an EIC? Is it for the recommend range in which a time delayed rcd should trip 130 - 500ms... or is it something else?
  12. S

    Domestic Time delay RCD

    Hi People, Carrying out a EIC on a recent cu replacement on a TT system. 100 amp 100MA time delay RCD used up front but cert is asking for time delay in MS- how do i find this out? Thanks Adam
  13. Pete999


    I should know the answer but I don't and have tried google etc so that's out of the way for starters. Reading a post about sockets used for IT equipment and the possible problems caused by RCD tripping due to start up earth leakage, led to think about protecting the circuit with RCBOs with a...
  14. B

    Domestic Delayed Action Off-Switch (Lighting)

    I have been asked to install a time-delay switch for the car park lighting at our village hall. At present there is a single (2-pole) switch inside the building which controls the outside (bollard lights). However, when closing up the building on dark nights, once the bollard lights have been...
  15. 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...
  16. S

    recommend pir

    i have to install some PIR on the stair case of block of flat..there its very dark and i dont know who its the best PIR for fare away pick up signals..any recommendation please..
  17. L

    Domestic Delay start timer extractor on ceiling mounted PIR

    Need to provide customer with delay start, timer run on extractor fan which is operated by a ceiling mounted PIR, has anyone carried this out who is aware of anything I should look out for of apart from the obvious doubling up of timers... Thanks
  18. B

    Do time delayed rcbo's exist?

    Anyone know where I can get them? cheers
  19. M

    will this wiring set up work?

    I have the rad fan of my car set up so it can be switched on if in traffic-jam and the coolant temp starts rising on the rad, the wire I can cut in to (easy option) is a negative feed and where I have the on/off switch there is a posative feed so I use a relay to swap the posative trigger in...
  20. S

    Fluorescent fault overcurrent trip?

    4ft old style starter/ballast type fitting which when powered does nothing at all (not a flicker) but trips the 6A/30mA RCBO after maybe 3-5 secs. I didnt have my clamp meter with me when i went to see the fault but assume due to the time delay that its the overcurrent part of the RCBO rather...
  21. G

    Rcd time delay wylex 4293 wes 100/4b

    Anybody know if this is a time delay rcd, and what delay? Can't get to see any information on it. Do have a pic but struggling to upload on phone
  22. B

    Intruder Alarm time delay on armed zones

    Hell all, I have bought and installed a LS400 Intruder Alarm. On testing I have found that when set in the Away Mode, and excluding entry/exit zone/route the following: If the alarm is activated there is a 15 second delay before the internal sounder operates and a further 30 second delay...
  23. S

    Domestic Shower timer

    I've been asked to install 2 electric showers. That's the easy bit. The client has asked me if I can install a timer so they will only run for a maximum 10 minutes. Is this possible? The reason is to stop the kids spending hours in the shower and save on energy.
  24. W

    Farm Installation help

    Hi all Went to look at a job today on a farm , 3 phase board with 75mm supply on a 100 amp 100 ma rcd mainswitch, with a submains out to the house , which is also protected by another 100 ma rcd, problem is every time theirs a trip in the house it trips at the main distribution board also which...
  25. S

    Pneumatic Timer Switches

    Anyone know of a pneumatic timer switch with a 1 hour delay suitable for use with a wall mounted domestic/office heater? Everything I can find has a max of ten minutes or is designed for lighting circuits.
  26. D

    Commercial rcd discrimination

    hi guys im an apprentice and need some more understanding about rcds please may i have an example of rcd discrimination and what ratings i would use for different things and why thanks danny
  27. S

    Weird Rcd Issue

    I've noticed on a couple of ocassions now. That my Type s 100ma rcd will somtimes trip before either of my 30ma rcd. CAN some one tell me why this may happen?
  28. V

    high readings on RCD test

    just a quick one lads, I was sent to a job to change a trip in a pirilli box that was covering the cable going into the house. Then I changed the trip in the house that was covering the house its self. My foreman give me 100Ma time delay for outside and a 30Ma for inside, I thought that we had...
  29. S

    RCD discrimination

    Hello everybody. I would like to understand how discrimination works for rcd's if say for say a garage supply you would put in a 100mA rcd, while the main board would be protected by a regular 30mA. So this ensures that a fault in the garage will not disturb the point of origin but I don't...
  30. M

    100ma rcd tripping times please???

    Does anybody know the tripping times for a 100ma 100a rcd, x1 and x5 many thanks for your previous help earliar.......................;)
  31. S

    Time delay switch for a 2/3kw heater?

    I'm looking to install an infrared 2 or 3 kw heater in the garden and I've found a couple of switches for it but they're only rated at 1.5kw, here's the sort of switch I want: DS1 electronic time delay switch, two wire [DS1] : Sparks Direct, Lighting and Electrical Wholesaler I've been advised...
  32. C

    voltage operated elcb, nuisance tripping

    Advice needed please, I was called out last week to a nuiscance tripping problem with an old elcb, IR tests showed up a L-E fault on ring circuit, finaly traced the fault to a wall light run off ring circuit which was shorting out in the socket. I disconnected this, put everything back together...
  33. D

    3 Phase Stuff..!

    going for a job interview tuesday and well i have got to do a trade test :rolleyes: stuff i should know but have not used it for a while!! as i never really needed it..! had a good heads up so far but 2x Niggly stuff which i not really had much to do with..! Star / Delta Motors...! am i...
  34. D

    Time Switch

    I need a time delay switch to turn off after 1 hour this is to connect two terminals on a heat pump 47v low power I need a switch that can disconect these wires after the one hour period I was thinking a 230v switch and relay to disconect the low voltage terminals where can I get one Are these...
  35. Mark.W

    RCD trip times

    Hi I have just tested a 80A 30mA time delay RCD model MK 5780s. The times I get are 1/2x - 2000ms at 0 and 180 1x - 0.0ms at 0 and 46.7ms at 180 5x - 10.4ms at 0 and 6.4ms at 180 These don't seem right because I thought time delay RCD should trip at between 130ms and 500ms at 100%...
  36. K

    periodic inspection.

    hi guys, done a periodic inspection today, obv you reccomend 17th edtion items to them change of db etc etc, but they will never change it. todays inspection was tt system, with no time delay rcd, the only thing they had was a 30 ma rcd as main switch which controlled all 16 ways. so...
  37. T


    What is the maximum time delay that can be set on a earth leakage device, for a tt system, earth rod not installed as yet, would time delay affect the level of ze that need to be achived???
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