How would I wire the LW400?

This topic contains 10 replies, has 3 voices, and was last updated by  jonjon 11 months, 2 weeks ago.

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  • #24808
     jonjon says:

    jonjon
    Participant

    Hi, this is the existing wiring for my kitchen lights (image attached) How would this translate to the LW400 wiring? Thanks

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    #24810
     jonjon says:

    jonjon
    Participant

    this is whats given in the instructions, but how does it translate if mine is like above? Thanks, a lot

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    #24813
     Node Zero says:

    Node Zero
    Participant

    Firstly you would need to ascertain whether the cable coming from above is the permanent live feed as would be expected with it being currently connected to Com. If that’s the case then connect it to Live Wire in on the LW400. Connect the other brown (currently in L2) to Switched Live Wire out and leave the neutral and earth as they are to pass through the box.
    HTH

    #24814
     jonjon says:

    jonjon
    Participant

    Firstly you would need to ascertain whether the cable coming from above is the permanent live feed as would be expected with it being currently connected to Com. If that’s the case then connect it to Live Wire in on the LW400. Connect the other brown (currently in L2) to Switched Live Wire out and leave the neutral and earth as they are to pass through the box.
    HTH

    So is it crucial which order the brown wires go into the ‘switched live’ and the ‘live’ holes? What would the incorrect order mean? Thanks

    #24815
     Node Zero says:

    Node Zero
    Participant

    It probably just wouldn’t work and may or may not damage the equipment.

    #24816
     jonjon says:

    jonjon
    Participant

    Do you know a way to determine for certain which is the “switched live” and which is the ‘Live’?

    #24817
     btidey says:

    btidey
    Participant

    All methods need to be used with care or not at all if you feel uncomfortable.

    First you need to put the switch in the off state so that one contact is live and the other is dead.

    1. Neon screwdriver will glow when touched on the live contact. You have to put thumb / forefinger on the cap of the screwdriver. The current flows through you but is tiny so you don’t even feel it.

    2. Voltage detector pen (e.g. from screwfix) Lights a LED when close to the live contact.

    3. Voltmeter on a 500VAC range or above between neutral and the contact. This is least desirable from a safety point of view as you need to get access to the neutral and it can need two hands.

    #24818
     jonjon says:

    jonjon
    Participant

    thanks

    #24819
     jonjon says:

    jonjon
    Participant

    All methods need to be used with care or not at all if you feel uncomfortable.

    First you need to put the switch in the off state so that one contact is live and the other is dead.

    1. Neon screwdriver will glow when touched on the live contact. You have to put thumb / forefinger on the cap of the screwdriver. The current flows through you but is tiny so you don’t even feel it.

    2. Voltage detector pen (e.g. from screwfix) Lights a LED when close to the live contact.

    3. Voltmeter on a 500VAC range or above between neutral and the contact. This is least desirable from a safety point of view as you need to get access to the neutral and it can need two hands.

    Which one will be the ‘switched live’? the one which glows/lights or the one which doesn’t?

    #24823
     btidey says:

    btidey
    Participant

    With the switch in the off position the Live will glow and the Switched Live won’t

    With the switch in the on position they will both glow.

    #24824
     jonjon says:

    jonjon
    Participant

    cheers

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