Bernina Electric Motor Models And Types | Vintage Bernina Motor

The original engines that were used Europe, with which the machines were delivered from the factory, are shown here. Thousands of machines however were also exported without an engine and were only equipped with an engine produced there in the country of destination.
Machines were also imported and equipped with a motor "made in W. Germany" in the EU. Bernina also supplied the 115 volt motors required there for the USA.
All of these Bernina motors were produced by Scintilla S.A. Solothurn / Switzerland. 
Note: all Bernina motors are factory-installed, safe to touch, in accordance with protection class I, 100% insulated from the machine housing. 

NOTE: the post is of an educational nature, work on live devices is intended exclusively for professionals, the risk of electric shock. !! 

Was initially delivered without a motor, as a pedal model in a seam table. It was then the first to be officially factory fitted engines was equipped. There were different models, such as a friction wheel motor which drives the hand wheel and the classic add on motor with belts. The at Scintilla S.A. in Solothurn they produced 85 W add on motor type MGG 729-LZ1 for belt drive, which could be mounted on the back of the machine with a simple bracket. 
Power was transmitted through the short belt relatively powerful despite 85 W. 
In the 1940s, some 117s were also used for industrial purposes, "high-speed" clutch motors were installed under the table top, power 200-400 W.

was available as S (Standard) 1953/54 as J (Jubilae) The first model only with the knee lever starter that was common at the time, the Jubilae was the first with a foot pedal.
Bernina 125/121
In 1945 Bernina presented the world's first portable electric sewing machine with a free arm and ZigZag the KL 125 (Kl = class)
Its predecessor was KL 121 without ZigZag in 1943. The Bernina125 was equipped with different engines several times. The first motors had a "handbrake" that could be used to stop the motor while winding.
In addition, there was an elaborate but clever coupling on the motor axis, with which you could easily switch the bobbin winder on or off.

Bernina 530 Record series these include the 530-1, 530-2, 531, 532, 534, 544;
From time to time the design of the motors was changed slightly, the output was 75 W (220V). The model names were mostly related to their equipment depending on whether the engine was equipped for a machine with a toggle starter or a foot pedal. In some cases it also affected the bobbin winder or the belt pulley.
Bernina 530 Record series after the 530 Record was delivered with a foot pedal, the motors also changed. 
The motor axis now no longer had a winder, just a belt pulley  GEM-9 motor from 1960 The output was increased to 90 W 5000 rpm.
Notice: These motors are all built, without exception, insulated from the machine housing at the factory, in accordance with protection class II.

Bernina 730 Record
From 1963 the 730 Record was available with a foot pedal and now with a knee lever as a near foot lift. There were 2 versions of the 730, because thousands were sold without the foot lifting mechanism. In the "Scintilla S.A" a new motor type HG-NM6 was developed for this purpose
New with min./max. Switch with which you can reduce the motor speed when approaching very slowly. Apparently this was considered necessary by switching to position min.However, the engine also had less power. The motor NM6 was now equipped with a switch for the HG-NM7.
From 1967 Bernina 730 Record with a new engine and 1-part connection cable officially sold from 1968.

Bernina 707 Minimatic, 708, 709, 800...830 R
Designation of motors (with hardly any technical changes) without reference to the speed.
Motor type A-1-707 ... 240V 85/60 W (1968)
Motor type A-2-707 ... 220V 85/60 W (1968)
Motor type A-2-707 ... 240V 85 W (1969) UK
Motor type B-2-707 ... 220V 85 W (1971)
Motor type 707 .......... 220V 85 W (1972)
Motor fits in all machines of the series 707, 709 -717, 800 - 803 and in all Bernina 830 Record.

Bernina 830 Record electronic, 831, 832 series with electronic foot pedal designation motor type B 830 SEG 30 with Triac actuator 220 V 90 W / 7400 rpm fits in all machines of the 707 and 800/830 series. Triac actuator = electronic pedal (type 230, 232, 238...).

Bernina 900 Nova
Motor B 900 SEG 29 / 220V / 7400 rpm
Motor power and speed are electronically regulated via the foot pedal.

Please note that there is a possibility of spelling mistakes, my knowledge of English is not the best, Thanks for understanding.


  1. Anonymous26.11.22

    Trying to repair the motor on my Bernina 530 Record . It was bought in France in 1957. The 220V motor is beginning to smoke. ( I have a step up transformer for my 110 electricity). Would you know where I could find a replacement 220V motor? Or could I use a 115V motor replacement ? Thank for your help.

    1. As far as I understand, the motor on your Bernina 530 Record is 220V, and your voltage in the house is 110V, so you can use a converter and boost your 110V to 220V through the converter?
      You can see for yourself that these are very old machines and a replacement part is almost impossible to find, the engines very rarely. In any case, the smell of smoke from the engine does not necessarily mean that the engine is defective, very often the old capacitors on the engine "break through" and release that smoke smell, it is necessary to open and inspect, take advantage of the situation and thoroughly clean the engine, clean the engine collector , lubricate the bearings and, if necessary, replace the carbon brushes.
      Before any work, the machine MUST be completely disconnected from the power supply.!!

  2. Anonymous9.1.23

    Thank you for these useful info! I own a Bernina Record 730 from 1965 with a PSE-4C motor. As far as I understand, the EPL-2 is newer than the PSE-4C? In the section above "Bernina Record 730" you mention a new motor type HG-NM6. How does it relate to the PSE-4C or EPL-2? Thank you!

    1. Bernina 730 Record motor types:
      I could not post all the pictures of the motor, the HG / NM6 motor is practically the first motor on the Bernina 730 record, only that motor did not have the min/max option (switch).
      The next engine is HG / NM7 it has a min/max switch, HG / NM7 (1963-1965) is identical to the previous one, maybe there are differences in dimensions but the characteristics are the same, Engine PSE-4C (1964-67)...etc
      I hope the situation is a little clearer now. There is a possibility that the author of the text did not express himself well due to his poor English.

  3. Brezorojo6.6.23

    Hi, very interesting article! I have a Bernina Nova with a 240v motor which was damaged in transit and doesn't sew. The motor, however, is fine. I have the opportunity to buy an American Nova which has the 110V motor. Would it be possible to just swap the motors to get a 240V machine or is it necessary to change other parts as well?

    1. This sentence is not clear to me "I have a Bernina Nova with a 240v motor which was damaged in transit and doesn't sew. The motor, however, is fine"??
      If the engine is correct why do you want to change it?
      With the Bernina 900 Nova electronics, things are not so simple, the mechanics are the same regardless of the type of motor, changing the voltage on the socket always requires a converter, but replacing the 230 V motor with a 110 V motor could be problematic, such situations do not happen in Europe, but logically I'm thinking, namely the Bernina 900 Nova has a small electronic board and I'm not sure if it's the same regardless of the type of motor, you should also check the "foot control" which is the voltage range it works on, it's usually written on the bottom.

    2. Anonymous17.11.23

      I need get a new engine for my Nova 900

    3. You will have a hard time finding it, there is no such thing as a new engine, you can buy a used one, I don't have it.

  4. Anonymous9.12.23

    Hi there

    I would be happy to pay you for instructions on how to put this wiring back.
    I can't find a wiring diagram anywhere and while I have watched your videos, it's difficult to see the wiring. I have attached jpeg pictures.
    The capacitor blew up on my Bernina 530 Record so I will remove it. It was going great before that .
    When I took the motor off the 2 soldered wires to the brushes came off.

    These are the instructions I would need:

    1. What wires go to the black wiring junction (in front of the pedal
    unit)? A black wire looks like it goes from the power plug to the
    junction? yes? no?
    2. Is it within an amateur's skill to solder the two wires that come
    from inside the armature motor. I think they are the two lower wires.
    One yellow one black. They both had little lead or carbon lugs on the ends? Are they important? Do they solder? A very thin red wire is coming from the black wire that looks like it was wrapped around the little lug. Yes? No? Is it important?
    3.In what order do the 5 washers go that sat on top of the motor. 1x
    reddish, 2 the same size metal, 1 smaller, 1 really small.
    4. Two wires come out of the top of the motor: one is yellow, does
    this goes to the power plug? The black was fixed and goes to the pedal speed unit.
    5. From markings a small length of wire may also have come from the power plug, where does the other end go? A Very important bridge wire??? I put a note on it saying plug but how? It's not in the photo.
    6. Do just two wires come from the power plug? A yellow and black? Does it matter which way they are wired? i could maybe guess those by the curves of the wiring. Would the little wire as mentioned attach to yellow or black?
    7. The black wire coming from the pedal speed unit on the right may go to the junction box or it went to the capacitor? Where does it go? Since i will remove the capacitor is it necessary?
    8. Without looking at the sewing machine I will guess that two wires go into the right side of the junction unit. Does it matter which way?

    I would be happy to pay you for this advice . Let me know your rate. I am in New Zealand so I am not sure what currency you work in.
    Let me know if you are interested? How much?


    1. WOW...You shouldn't have done it that way, you should have simply cut the capacitor wires and not disassembled and soldered everything. I don't have the arrangement of wiring colors in my head, it's impossible, it's not a job for amateurs, you have to be very careful when working on a device under electrical voltage.! Go to the first repairer of electrical appliances, every repairer of electrical household appliances can do this, he doesn't have to be a repairer of sewing machines.

  5. Anonymous21.12.23

    Is a wiring diagram for a B 807 available?