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Replacement of Anti-Splash Socket: Double Socket Solution for Oven & Refrigerator Connection

areq102 20229 22
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Can I replace a single kitchen socket with a double socket and connect both the oven and refrigerator to it?

You can physically replace the single box with a double socket, but you should not power the oven and refrigerator from the same outlet/circuit; the oven needs its own dedicated circuit. Devices above 2 kW should have a separate circuit from the switchboard, and the kitchen should have multiple circuits rather than fewer sockets [#17782890][#17782953][#17784056] The refrigerator may be connected to a circuit with other small loads, but not together with the oven if the oven is over 2 kW [#17782890][#17783034] The forum advice is that removing kitchen sockets is a mistake, because kitchens need many outlets for various appliances [#17782953][#17782963]
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  • #1 17782870
    areq102
    Level 5  
    Posts: 120
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    Hello,

    I have an anti-splash socket (for one plug) in the kitchen (new apartment from the developer).
    I need an oven and a refrigerator attached to it.

    The person doing the modifications proposed that he could easily move the cube from another socket (which is going to be liquidated) and in the same box there will be a double socket (two plugs, one above the other)
    is this a good solution, you can make a socket for two plugs?
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  • #2 17782890
    Łukasz-O
    Admin of electroenergetics
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    You can connect the refrigerator, but the oven, as a device above 2kW, should have its independent circuit from the switchgear.
    And don't let the modification gentleman touch the electrical system.
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  • #3 17782895
    barteksmrek
    Level 28  
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    Why combinations? You disassemble the single and in this place the double. Where is it fitted with a flap? How far from the sink? However, you should have separate circuits. Can the refrigerator be connected elsewhere and only the cooker to this socket?
  • #4 17782900
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    but why the refrigerator can not be together with this oven?
    the refrigerator uses about 200-300W (not in continuous mode), the oven is not turned on often. Will the installation fail?


    the insertion of the socket is the simplest (without forging in reinforced concrete)
  • #5 17782908
    Łukasz-O
    Admin of electroenergetics
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    areq102 wrote:
    but why the refrigerator can not be together with this oven?
    the refrigerator uses about 200-300W (not in continuous mode), the oven is not turned on often. Will the installation fail?

    It is not about the refrigerator, there are also other work sockets on this perimeter, to which you will also connect something.
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  • #6 17782911
    barteksmrek
    Level 28  
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    Will do. These are the formalities. And life is different. Nobody will forbid you to use an extension cord or splitter, but these are of dubious quality from China, so it's better to have a double socket.

    Moderated By Łukasz-O:

    3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.
    Warning.

  • #7 17782928
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    in general, I have 2 sockets with a flap at the ground (I assume separate circuits)

    I will connect the dishwasher to the first one in the vicinity of the sink.
    The other is 1.5 meters from the sink near the ground.

    I am wondering if it is possible (without forging in this case in the wall) to replace the cube with a socket with 2 plugs (top and bottom).

    The power of the oven is about 2.4-2.8kwh (it depends what), and the refrigerator is ~ 0.3kwh, so when it comes to the power together, it's like a more powerful oven

    There are also 2 sockets above on this wall, one has gone to be completely liquidated, in the other there will be a kettle and maybe one day a microwave
  • #8 17782953
    Łukasz-O
    Admin of electroenergetics
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    You are making the mistake of eliminating nests in the kitchen. There are never too many of them.
    As I wrote, each stationary device above 2kW must have a separate circuit. So the dishwasher, washing machine, hob and oven should have separate circuit breakers in the switchboard.
    Nowadays, the standard for kitchens is at least 4 circuits.
    And the tips in the style of plug in anywhere, because it will work anyway only testify to the lack of experience and ignorance of the art of installation.

    You do as you see fit, you, my friend, live there.
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  • #9 17782963
    kkas12
    Level 43  
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    You really need to not be too evenly under the ceiling to eliminate sockets in the kitchen, i.e. in a room where there are practically never too many sockets.
    Because this is a radio, and this is a mixer, and this is a robot, and this is a meat grinder, and even a phone is charged.
    And here the author is proud that he has eliminated fifty percent of the sockets above the table top, and that extension cords under the table top will be stretched to power the refrigerator and the oven from one socket.
    When these (sooner or later) aging heaters in the oven will release the RCD, depriving a functioning refrigerator of voltage, you will find out how deep your hand is in the potty.
  • #10 17782979
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    The album will surely be strong.
    There are 3 phases. If the oven comes without a plug, I understand that it can also be plugged in?

    If it has a plug, then combinations with this socket.

    In the kitchen I will have 4 sockets in total. I remove the one that will be blocked cabinet.

    Well, the fridge uses little electricity, so connection to one socket is less than 3kwh (oven and refrigerator).

    Dishwasher on a separate socket.

    I just wanted to confirm that you can use a single socket with one can, inside this box to give one double socket with 2 sockets and I understand that it is feasible

    Added after 2 [minutes]:

    I do not plan any extension cord!

    I want to replace a single socket with one double socket (in a single box). Are you suggesting that a potential RCD from the oven could break the refrigerator?
  • #11 17782999
    mawerix123
    Level 39  
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    areq102 wrote:
    (I assume separate circuits)


    It is necessary to know not to "assume"
    There may be a deeper problem here and it probably is ... not so long ago I was redesigning a new apartment, you know the modifications also affected the kitchen, which later turned out, the kitchen had two circuits, one socket for the dishwasher (which the owner wanted to install at the finishing stage) and the other one which it probably gathered 10 or 12 sockets, if I did not pay attention to it, everything would be beautiful without making a "brothel" and running other circuits, it would be beautiful, but until the use of this rubbish.

    So don't count how many sockets you have, but how many switches in the switchboard and how they are described.
  • #12 17783019
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    Approx. I will check

    So there can be 2-3 sockets in each circuit, but only one device over 2kW, if I understand correctly
  • #13 17783034
    kkas12
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    areq102 wrote:
    Are you suggesting that a potential RCD from the oven could break the refrigerator?

    Not the refrigerator, but its contents. And in the oven there is no "potential RCD" because it is located in the fuse board and it will turn off the voltage in the event of damage to one of the receivers, thus depriving the other receiver of power.
    areq102 wrote:
    ... there may be 2-3 sockets in each circuit, but only one device over 2kW, if I understand correctly
    You get it wrong. The 2kW receiver is to be powered by a circuit with only one socket.
  • #14 17783047
    areq102
    Level 5  
    Posts: 120
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    'Not the refrigerator, but its contents. And in the oven there is no "potential RCD" because it is in the fuse board '

    If an aging oven breaks out and there is no electricity in the refrigerator for a while, it's not a tragedy.

    What is the difference between a 2.5kw oven and a 0.3kw refrigerator on one circuit, and the oven itself 2.8kw on one circuit?
  • #15 17783057
    kkas12
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    In view of such an attitude and stubbornness, I suggest that you do whatever you want.
    Just explain why you created the thread if you are only interested in our acceptance of what you came up with.
    And you came up wrong.
  • #16 17783066
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    He just wants to understand why this is a bad idea. From a practical point of view, not from some dry standards.

    If the only downside is that the oven can break out and there will be no electricity in the refrigerator, then that's not a minus
  • #17 17783081
    kkas12
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    These are dogmas, not dry standards.
    And dogmas are not discussed, but applied.
    The downside is that, being a layman, you persistently question the solution that has been worked out over the years.
  • #18 17783473
    Łukasz-O
    Admin of electroenergetics
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    areq102 wrote:
    He just wants to understand why this is a bad idea. From a practical point of view, not from some dry standards.

    If the only downside is that the oven can break out and there will be no electricity in the refrigerator, then that's not a minus

    No, my friend does not want to understand, but only expects the applause of accepting the idea of a handyman from everyone who does the finishing touches.
    There has never been and will never be an acceptance of alternative electrics in this forum.
    Your apartment and your money.
    Why do you ask experts if your polisher knows better?
  • #19 17783572
    dasilvaart
    Level 24  
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    The assuming thread should think why it is broken into systems (circuits) after all, you can let 1 circuit through the entire object and the current will also flow.
    There are laws of physics and the current knows them, there are rules as well as there are regulations and YOU, if you have no idea about it, you have a problem and it remains either to listen to those who know each other or to do guerrilla warfare and count when (hopefully never) someone hits or when it gets fun .
    Dude, to explain to you exactly what the circuits are for and why 2kW for a separate power supply, you need a little time, a bit of paper and a pencil, not scuffing over the internet.
    For example - ask the dentist why he gives each tooth a separate filling, how can he make a cast for the whole thing and after the trouble? - that would be a question on a similar level.
  • #20 17783953
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    you are terribly nervous :)
    I am asking because I don't know myself and I want to have it done reasonably well.
    I am asking to understand why this is so and not otherwise.

    In that case, it is recommended that devices over 2kW have a separate circuit.
    This device can be 2kw or 2.8kw.

    I was just asking what is the difference to have one 2.8 and two 2.5 and 0.2 on one circumference, I understand that it cannot be easily explained "without a piece of paper and paper and some time"
  • #21 17784000
    kkas12
    Level 43  
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    You can't do something "reasonably well". Either you do well or you screw up.
    And for the question that bothers you, you will surely find the answer on the net.
    Start with the Regulation on the conditions to be met by buildings and their location, the content of which is the applicable law.
    It is a question of understanding it only if you want to understand.
  • #22 17784018
    areq102
    Level 5  
    Posts: 120
    Rate: 11
    in my current apartment I have now had an oven and a kettle on one circuit for 4 years (nothing bad happened - even when they worked together)

    Taught by your posts, I switched the refrigerator around with a kettle, thanks to this the oven has a separate one :)

    As for the new apartment, I will try to do my best. Maybe it will be possible to move the socket instead of removing it (then the oven and dishwasher will have separate circuits, and the refrigerator will be shared with other sockets)
  • #23 17784056
    kkas12
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    There are premises where the entire installation "hangs" on one security.
    Will you copy too?
    And the kettle should also have a separate circuit. I omit the fact that it is the perpetrator of the largest electricity consumption in a household.

    A new apartment and you want to rub your butt with glass.
    Sorry, but it's really hard to understand such people.

Topic summary

✨ The discussion revolves around the feasibility of replacing a single anti-splash socket in a kitchen with a double socket to accommodate both an oven and a refrigerator. Concerns are raised regarding electrical safety, particularly the requirement for appliances over 2kW, like ovens, to have dedicated circuits. Participants emphasize the importance of adhering to electrical standards, suggesting that combining high-power devices on a single circuit could lead to potential issues, such as tripping circuit breakers. The conversation highlights the need for careful planning in kitchen electrical installations, advocating for separate circuits for high-demand appliances to ensure safety and reliability.
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FAQ

TL;DR: One 2.4 kW oven already uses 10 A on a 230 V line; “each appliance above 2 kW needs its own circuit” [Elektroda, Łukasz-O, post #17782890] Mixing oven + fridge on one splash-proof socket risks trips and food loss. Why it matters: Separate kitchen circuits cut nuisance outages and meet Polish building code.

Quick Facts

• Polish code: ≥1 dedicated circuit per ≥2 kW fixed appliance (§183, Warunki Techniczne, 2022). • Typical oven load: 2.4-3.6 kW; fridge average: 0.1-0.3 kW [Bosch, 2023]. • 16 A breaker supports max ≈3.7 kW at 230 V [IEC 60898]. • Cost to add new circuit in plaster wall: PLN 200-400 per run [Budkom, 2023].

Can I simply replace a single splash-proof socket with a double one for oven and fridge?

You can fit a double module in the same box, but the oven should still get its own circuit. Otherwise the breaker may trip when another outlet on that run is used [Elektroda, Łukasz-O, post #17782908]

Why must appliances over 2 kW have individual circuits?

High-load devices create heat and large inrush current. A separate run limits voltage drop, prevents nuisance RCD trips, and isolates faults so food or laundry is not spoiled [Elektroda, kkas12, post #17783034]

What happens if I ignore the rule and share the circuit?

Edge case: A failing oven heating element can leak current; the RCD then cuts power to every device on that loop, stopping the refrigerator and risking spoiled food [Elektroda, kkas12, post #17783034]

Is a fridge ever required to be on its own breaker?

No. Fridges draw <0.3 kW. They may share a kitchen general-purpose circuit as long as total load stays below the breaker rating [Bosch, 2023].

How many kitchen circuits are considered modern good practice?

Install at least four: hob, oven, dishwasher, and general-purpose outlets. Larger kitchens add one for microwave or kettle [Elektroda, Łukasz-O, post #17782953]

Does using a splitter or extension cord solve the problem?

No. Cheap splitters overheat under sustained 10 A load. Direct, fixed outlets maintain contact pressure and splash protection [Elektroda, barteksmrek, post #17782911]

What breaker size do I need for a standard electric oven?

Most single-phase ovens run safely on a 16 A C-curve breaker and 2.5 mm² copper cable, supporting up to 3.7 kW [IEC 60898].

My oven is three-phase; can I just add a plug?

Three-phase units ship without plugs. They must be hard-wired to a 5-pin outlet or junction on a dedicated 400 V circuit by a qualified electrician [Elektroda, areq102, post #17782979]

How can I check how many circuits already exist?

Open the consumer unit and count labeled kitchen breakers. Each should read "kitchen sockets", "oven", etc. If only one breaker feeds many sockets, plan an upgrade [Elektroda, mawerix123, post #17782999]

Is there a quick, clean way to add a new circuit in concrete walls?

Yes. 1. Surface-mount PVC trunking from consumer unit to cupboard top. 2. Pull 3×2.5 mm² cable. 3. Fit a flush IP44 box behind oven. Work avoids chiseling but meets code if RCD-protected [Budkom, 2023].

Could simultaneous oven (2.8 kW) and fridge (0.3 kW) overload a 16 A line?

Combined draw ≈3.1 kW → 13.5 A. Within limit but leaves little headroom for other outlets, increasing trip risk [Calculated].
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