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  1. S

    Double pole switch a must for storage water heater?

    From a regulations standpoint, is it a must to use a double pole switch for storage water heater? I don't seem to find it worded as such in the BS standards. The reason I am asking is I want to replace my current double pole switch with a run back timer from CP Electronics. This run back timer...
  2. P

    Double pole light switch

    I need to switch 2 lights at the same time which are on different circuits. I can't gain access anywhere (hard wood floors and untouchable ceilings but I can get to both switch cables. The simplest solution would be a 1-gang, 1-way double-pole switch but I can't find one. I've looked at using a...
  3. H

    Double Pole on TT

    I'm reading regulation 537.2.1.1 and as far as I can see this states that isolation devices in a TT installation must be double-pole? So, some questions I have: 1) Does this mean that single-pole circuit breakers cannot be used for isolation in a TT system? 2) I'm guessing therefore that the...
  4. Davehaywire

    3 pole dol starter with overload for a sp motor

    Hi Looking for a wiring diagram for the above anyone have one? Cheers
  5. D

    45a double pole switch module?

    Hi guys, Does any of you know if anyone does a 45A DP switch module (obviously for grid)? I would quite like to fit one along with other more common modules. I fear I may be out of luck here. Here's hoping, Dave.
  6. polo1

    Moellerr 3 ph board - single pole rcbo compatibility.

    Hi folks, can anyone advise re the above. All I info I have is the the board is about 10 years old. I can only find flea bay options for Moellerr. Does anyone know what, if any, alternative single phase c type rcbos are compatible? The site is 40 miles away so ideally want to attend with...
  7. E

    testing 4 pole RCD - funny results?

    Can anybody help with this one? Installation: TT system, (Ra 27 ohms), 3 phase & neutral incoming supply. A 4 pole 30mA RCD is at the head of the board, from which there is a 3 phase motor circuit and a 3 phase & neutral feed to a second board. The second board has a number of 230V final...
  8. walsh builders

    double pole MCB?

    Does anyone know of an 80a type b double pole MCB? I can't find one anywhere.
  9. uksparks

    12v 4 Pole NC Contactor

    Hi, where re can I get a 12v 4 Pole NC contactor capable of day 50A or more...? i can't seem to find one, the alternative is can I pull a contactor on with 230v that's closing or opening 12v circuits? Seems wrong to mix ELV with LV.
  10. S

    double pole control unit

    Wiring a 2.2kw electric oven.. instruction manual states for warranty to be valid needs a double pole control unit. There is a double socket inside one of the cubbords; is it ok to spur of this double socket to feed the double pole control unit?
  11. C

    Single Pole RCBO in TT with Time Delay RCD Incomer

    Hello, Newcomer to the forum, so hello all. Just to clarify, although I understand most of my way around the regs and workings, still get an approved guy to to any work......just thought I'd get that out of the way! Anyhow, I have an old property that fed by good old overhead Live/Neutral so...
  12. M

    RCCB 4 Pole 80A 300ma

    As The title says I have 2 of these boxed brand new Hager 4 pole 80A, 300ma Ref number is CF480M . Special order then not used. 50 quid each or 2 for 85.00 inc postage need rid just in the way.
  13. 6

    100a single pole tails block over 150 available

    Got a surplus of 100a tails blocks Brand new still on packaging ,Henley blocks. Can Post as many as you want . Let me know how many and can give you a price.
  14. A

    12V Dual Pole Relay connections...

    Hi all. I have just received a 12V 2 pole 2NO and 2NC and there's no instructions on how to connect it to the power. Normally being a coil negative swapped with positive would make no difference however, this has an LED light and a resister. I am thinking the 12V life wire should before the...
  15. D

    New supply from overhead pole

    Hi all , if a new supply is being provided for a domestic new build from a overhead pole across the street would it mean that the earthing system would be a tt? the cable is being ran down the pole then underground to the properties. Have read on other posts that it may be tn-c-s. Will be...
  16. G

    pole mounted transformer identification -3 phase, 2 phase???

    Can anyone assist with identifying what this transformer is? The customer has a 3 phase supply cable run up their drive, but apparently the conductors have bee paired up and is now only single phase supply - they think the transformer was swapped a few years ago after a major fault, and that...
  17. B

    Square D 80a Breaker 3 pole.

    Is there such thing on the market? Its the clip on type 3 phase one. Model HQ. 63 aint quite cutting it and need something a bit beefier..
  18. sibbits

    old mem triple pole breaker

    im trying to find an old or equivilent breaker its an mem 3p 40amp any ideas??
  19. G

    4 Pole Contactor

    I need to wire up 7 water heaters in an office building and the client wants the water heaters to switch off at 5pm when the office closes and switch back on at 7am just before the office opens in the morning.... Can I use a electromechanical timeswitch to operate 2 x 4 pole contactors mounted...
  20. D

    Single pole or double pole

    Hi all does any one fit double pole sockets if so what benefits the cost on a standard house rewire

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