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Bosch PIF651FC1E Induction Hob & Oven Connection: 3-Phase Circuit 5x2.5mm, Wiring Diagram

mireczek85 13755 14
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  • #1 16902023
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    Hello, I set up a new thread because I did not find a similar one, I apologize in advance if I litter the forum.
    I have an oven and an induction hob to connect, I would like these devices to be connected to a separate 3-phase circuit 5x2.5mm
    The induction cooker is Bosch PIF651FC1E, the oven will also be the same company, will anyone be familiar with the topic and look at whether the following diagram is correctly made? I will add that the connection will be made by an electrician with permissions, but despite this I would like to know what and how not to let an electrician put on some sort of cleaning.

    Bosch PIF651FC1E Induction Hob & Oven Connection: 3-Phase Circuit 5x2.5mm, Wiring Diagram Bosch PIF651FC1E Induction Hob & Oven Connection: 3-Phase Circuit 5x2.5mm, Wiring Diagram Bosch PIF651FC1E Induction Hob & Oven Connection: 3-Phase Circuit 5x2.5mm, Wiring Diagram
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  • #2 16902092
    CYRUS2
    Level 43  
    Posts: 17636
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    mireczek85 wrote:
    I will add that the connection will be made by an electrician with permissions, but despite this I would like to know what and how not to let an electrician put on some sort of cleaning.
    He does not need a colleague to know.
    A colleague is not an inspector from checking the qualifications of an electrician.
    The diagram is a colleague's work.
    The schema is incorrect - not compliant with the standards.
  • #3 16902903
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    I do not want to check the electrician only to ask if the given scheme I made (because I did not write anywhere that an electrician did it) is correct. If a colleague claims he is not, which connection is wrongly done?
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  • #4 16902974
    mawerix123
    Level 39  
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    Gray wire for induction in your image is unnecessary and figure 3N seems to be wrong because there is no 3L there is a 2N system with a mirrored L1.

    Generally, the oven and induction should be on separate circuits.
  • #5 16902990
    CYRUS2
    Level 43  
    Posts: 17636
    Help: 1221
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    mireczek85 wrote:
    If a colleague claims he is not, which connection is wrongly done?
    Connections are correct - but only on paper.
    Theoretically "Lines" in the diagram go wherever you need.
    But .... It can not bear the load.
    (I ignore non-compliance with standards)
    A colleague needs to earn an extra perimeter to the oven.
    Then it will be ok
    Provided that a colleague does not call back connection techniques.
    Because I do not believe in this "electrician".
  • #6 16903065
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    If I make an additional circuit for the oven, then the phase from circuit 3f will be left unused, I will add that the circuit breaker is B20 A 3-phase.
    I'm just wondering if this gray GY wire bridged with the brown BN wire is not from the induction hob display? how do you guys think?
    The manual does not mention this.
  • #7 16903071
    kkas12
    Level 43  
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    Do not combine.
    Do you have two receivers?
    You have, so you should power them with separate circuits and not worry about the unused phase.
    In what you propose to damage one receiver will also immobilize the efficient receiver.
  • #8 16903092
    CYRUS2
    Level 43  
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    mireczek85 wrote:
    If I make an additional circuit under the oven, then the phase from circuit 3f will be left unused.
    Hire a professional who knows what he is doing.
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  • #9 16903354
    Krzysztof Reszka
    VIP Meritorious for electroda.pl  
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    viertnik wrote:
    Your electrician's power supply can be mounted mini switchboards .

    An interesting description of where they sell it.
    viertnik wrote:
    to propose a solution without the need for additional circuits with RG?

    There are no half-measures, or we do it in accordance with the knowledge and art of a decent electrician and regulations or do not touch the topic.
  • #10 16903437
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    Gentlemen, write to yourself not to bother with the third phase, from what I know every phase must be loaded uniformly, the induction is 7.4 KW and the oven 3.6 KW, if I understand correctly for each of these two phases, the induction will be 3 , 7 KW and for one 3.6 KW. The 2.5mm cable load capacity in tubes or closed trays on the wall, in the wall or in the floor is 19A, i.e. I still have a spare. If I'm wrong, correct me
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  • #11 16903458
    kkas12
    Level 43  
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    It is this third unused phase that is supposed to feed the oven. But this oven should be fed with a new, separate circuit
  • #12 16903480
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    as far as I understand it is necessary to blow out a 3-pole overcurrent fuse and put in place 2-pole for induction and 1-pole with a separate circuit but with the same phase to the oven?

    You can dump dung from the cowshed. [Retrofood]
  • #13 16903492
    kkas12
    Level 43  
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    You misunderstand, because you do it so that it is more convenient for you.
    I wrote about a separate circuit dedicated to the oven.
    A three-pole circuit breaker in the oven circuit can be left. The fact that one phase will not be used is not a reason for its conversion into a two-zone camera.
  • #14 16903544
    mireczek85
    Level 9  
    Posts: 6
    Rate: 4
    an additional circuit at this stage of construction is unfortunately not an option. Thank you for all the advice and best regards.
  • #15 16903590
    retrofood
    VIP Meritorious for electroda.pl  
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    mireczek85 wrote:
    an additional circuit at this stage of construction is unfortunately not an option. Thank you for all the advice and best regards.


    As you can see, normality is not an option. Typical thinking of electric ignorants. Well, your choice, and you pay for the election. One day you will find out about it.
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Topic summary

✨ The discussion revolves around the connection of a Bosch PIF651FC1E induction hob and an oven to a separate 3-phase circuit using a 5x2.5mm wiring configuration. The original poster seeks validation of their wiring diagram, which is criticized for non-compliance with electrical standards. Key points include the necessity for separate circuits for the induction hob and oven to prevent overload and ensure proper functionality. Participants emphasize the importance of hiring a qualified electrician and adhering to electrical regulations. Concerns are raised about the use of an unused phase and the adequacy of the proposed circuit breaker ratings. The conversation highlights the technical requirements for safely connecting high-power appliances.
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FAQ

TL;DR: For a Bosch PIF651FC1E hob and a separate oven, don’t share one run: “Generally, the oven and induction should be on separate circuits.” Use the hob’s multi‑phase scheme (e.g., 2N/3N) and dedicate another circuit to the oven. [Elektroda, mawerix123, post #16902974]

Quick Facts

Can I connect a Bosch PIF651FC1E hob and an oven to one 3‑phase 5×2.5 mm² circuit?

The forum advises against combining them. Run the hob on its intended multi‑phase connection and power the oven from a separate, dedicated circuit. This avoids overload, aligns with good practice, and simplifies fault isolation. As one expert put it: “Do not combine.” [Elektroda, kkas12, post #16903071]

Is the manual’s 3N/2N wiring diagram being misread in the thread images?

Yes. A contributor noted the referenced “3N” sketch actually mirrored L1 and showed a 2N arrangement. The gray conductor in that drawing was also flagged as unnecessary for the hob. Always follow the appliance manual’s official terminal links and jumpers. [Elektroda, mawerix123, post #16902974]

Why separate circuits for hob and oven—what’s the practical benefit?

Separate circuits prevent mutual shutdowns during faults and keep loads within design limits. Sharing one run can trip protection and disable both appliances at once. Expert quote: “You have two receivers... you should power them with separate circuits.” [Elektroda, kkas12, post #16903071]

What happens if I still combine them on one breaker?

A fault or overload on either appliance can immobilize the other, even if it’s healthy. Troubleshooting also becomes harder, and the layout may not meet accepted practice highlighted by moderators and pros in the thread. [Elektroda, kkas12, post #16903071]

Do I need to use all three phases for the hob?

Not necessarily. The hob supports multi‑phase configurations; unused phases aren’t a problem by themselves. The oven, however, should still be supplied via its own dedicated circuit, even if one phase remains unused in the board. [Elektroda, kkas12, post #16903458]

Is a 3‑pole B20A acceptable for the oven circuit if only one phase is used?

A contributor stated the three‑pole breaker could remain in place, even with one phase unused, and that alone is not a reason to swap to a two‑pole. Prioritize providing the oven with a distinct circuit path. [Elektroda, kkas12, post #16903492]

What does the gray (GY) wire shown in the sketch do for the hob?

The gray lead shown in the user’s image was called unnecessary for the induction hob. Follow the hob’s official terminal labeling and factory jumpers, not improvised bridges from user sketches. [Elektroda, mawerix123, post #16902974]

How should I balance phases if the hob is ~7.4 kW and the oven ~3.6 kW?

The OP estimated 7.4 kW + 3.6 kW. The forum’s solution is simpler: don’t co‑load a single run. Feed the hob per its rated multi‑phase scheme and feed the oven separately, avoiding forced phase‑balancing on one cable. [Elektroda, mireczek85, post #16903437]

I can’t add a new circuit at this build stage—what did pros recommend?

Pros urged doing the job correctly or not touching it, and to hire a qualified electrician rather than forcing a compromise. Quote: “Hire a professional who knows what he is doing.” [Elektroda, CYRUS2, post #16903092]

My sketch was called “non‑compliant with standards.” What did they mean?

A moderator‑level response said your schematic didn’t meet standards. That includes improper bridging and mixing loads on one run. Redo the plan: hob on its designed multi‑phase connection, oven on a separate dedicated circuit. [Elektroda, CYRUS2, post #16902092]

What’s the risk of leaving the plan as is if it seems to work on paper?

It may not bear real load. One expert wrote the connections were “correct on paper” but the installation wouldn’t carry the demanded current safely under use. That’s a failure‑mode worth avoiding. [Elektroda, CYRUS2, post #16902990]

How do I implement the forum’s recommended approach (quick 3‑step)?

  1. Keep the hob on its manufacturer‑specified multi‑phase terminals and jumpers.
  2. Run a separate, dedicated circuit for the oven from the board.
  3. Test each circuit independently and verify protections trip correctly. [Elektroda, kkas12, post #16903071]

Does using one shared circuit make future maintenance harder?

Yes. A shared line couples faults and trips, disabling both units and complicating diagnosis. Separate circuits isolate problems and keep one appliance running while you service the other. “In what you propose, damage to one receiver will immobilize the efficient receiver.” [Elektroda, kkas12, post #16903071]

Is 11.0 kW combined load a concern with 5×2.5 mm²?

The thread raised capacity concerns and rejected combining loads on one 5×2.5 mm² run. The safer route is separate circuits sized and protected per appliance requirements, not a single shared feed. [Elektroda, CYRUS2, post #16902990]

What if I insist on no additional circuits anyway?

Forum experts called that choice unsafe and against good practice. Quote: “There are no half‑measures... either we do it in accordance with... regulations or do not touch the topic.” [Elektroda, Krzysztof Reszka, post #16903354]
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