Connecting appliance with L, L2, N1, N2 and earth to L, N and earth

Discussion in 'Electricians' Talk' started by steve01, Nov 14, 2017.

  1. steve01

    steve01 New Member

    Looking for connection advice.

    New ceramic hob with L1, L2, N1, N2 and earth (all wires must be connected for hob to work)

    to existing 30amp 240 supply through a 45A. Slimline DP cooker control unit with twin earth. Separate switching for both cooker switch and socket outlet with feed and load L, N and earth connections.

    Any insight will be greatly appreciated
  2. terrymac

    terrymac Well-Known Member

    Have you looked at the installation manual / wiring diagram ,that came with the hob ? There may already be a copper link joining L1 to L2 ,and another link joining N 1 to N2. Post pic of the terminal block and the wiring diagram so you can be given the correct advice.
  3. spinlondon

    spinlondon Well-Known Member

    This sounds like it’s designed for two separate supplies?
  4. KIAB

    KIAB Well-Known Member

    You should have a diagram similar to this.
    And the

    Last edited: Nov 14, 2017
  5. steve01

    steve01 New Member

    Thank you Terrymac (also KIAB)
    Looked at manual it has connection diagrams for 240 and 415 so looked at downloaded user manual which was more up to date which i have posted here - seems clear regarding my question.

    Connecting the hob to the mains power supply

    The power supply should be connected in compliance with the relevant standard, or a single-pole circuit breaker.

    Hob cable


    1. If the cable is damaged or needs replacing, this should be done by an after-sales

    technician using the proper tools, so as to avoid any accidents.

    2. If the appliance is being connected directly to the mains supply, an omnipolar circuit

    breaker must be installed with a minimum gap of 3mm between the contacts.

    3. The installer must ensure that the correct electrical connection has been made and

    that it complies with safety regulations.

    4. The cable must not be bent or compressed.
  6. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    And that's clear to you, is it? And you have those supply colours/cable?

    Mr. HandyAndy - Really
  7. spinlondon

    spinlondon Well-Known Member

    Wondering whether this is an American appliance?
    In the U.K. Brown Black and Grey are Live conductors and Blue is Neutral
  8. steve01

    steve01 New Member

    Hi HandyAndy,

    Those are the exact colours that i have on the appliance, do you want a picture? lol
    Yes sir and

    Do you have a constructive comment?
  9. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Oooh, bit touchy.

    If yours mains supply cable has those colours and configuration, then go ahead I guess.

    Glad to be of help.

    Mr. HandyAndy - Really
  10. spinlondon

    spinlondon Well-Known Member

    Are you saying the appliance is pre-wired?
    Are you now asking how to connect the wires into the cooker switch?

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