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Switch Identification

Discussion in 'General Electronics Discussion' started by Stephen Hall, Feb 4, 2018.

  1. Stephen Hall

    Stephen Hall

    1
    0
    Feb 4, 2018
    Hi,

    Can anyone help me identify the following switch in the picture and tell me where I can buy?

    Thanks in advance
     

    Attached Files:

  2. kellys_eye

    kellys_eye

    4,281
    1,144
    Jun 25, 2010
  3. FuZZ1L0G1C

    FuZZ1L0G1C

    367
    113
    Mar 25, 2014
    2Ponoff.png
    Ring it out & press a few times to confirm.
     
  4. dave9

    dave9

    803
    187
    Mar 5, 2017
    Do you really need that exact switch? Being panel mount, there should be a few dozen to choose from that perform the function and fit in the available space, and of course, meet the required electrical spec volts and amps.
     
  5. 73's de Edd

    73's de Edd

    2,722
    1,112
    Aug 21, 2015
    Sir Stephen Hall . . . . .


    DON"T GUESS ! . . .let me tell you . . . its being a Push-on Push- off switch from a PFAFF models
    1221, 1222, 1222E & 1222SE #70-112000-02. sewing machines work light.

    With repeated use, its mechanical latching works may have failed within the switch housing . . . . . OR . . . . . bad contact action may have developed with its contacts.

    If being contacts, one might swing out the 4 tabs at the bottom of the switch to let the switch be slid apart, where you then s . .l. .o . .w . .l . .y and methodically observe and disassemble the unit to clean the contact areas and brush clean with denatured alcohol. Then with it being all nice and clean inside and having polished metal contacts. . . trial test it.

    If all is well, then slide the side support rails apart and compress inwards slightly to be able to get a tight clamping to the case when you reassemble again.
    BUT . . . for contact longevity and anti oxidance, get a small tin of silicone grease from a plumbers supply . . . its product identified as being " Plumbers Silicone Grease". Toothpick / apply it on the switches, just cleaned metal contact areas.
    Then you slide back together and re crimp the 4 end tabs.

    For . . A . . .price, the Exact unit is available as :

    https://www.ebay.com/itm/ON-OFF-LIGHT-POWER-SWITCH-PFAFF-1221-1222-1222E-1222SE-70-112000-02/231287080249?_trkparms=aid=888007&algo=DISC.MBE&ao=1&asc=47301&meid=ea854db1550f4bbc95f4da9c6529e83b&pid=100009&rk=2&rkt=2&sd=221501490761&itm=231287080249&_trksid=p2047675.c100009.m1982

    OR . . .since it is MERELY switching a small wattage lamp . . . and IF you only see 2 connecting wires . . . any SPST toggle switch or latching PUSH switch, being of your AC line voltage rating and " fitting the hole " should substitute for reliable use for another 52 years.

    Furthermore . . . since the contacts / connecting wires did not show in your photos profile as was being shown . . . . do a double check against our most honorable . . . FUZZ meisters . . . . info on . . .Post #3 . . .for connections.
    BUT, your switch minimally qualifies as requiring a Single Pole Single Throw switching action and is definitely being a latching type of switch, or the light would go off, just as soon as you let off pressure on the switch pushbutton.

    Thaaaaaassit . . . . .
    73's de Edd
    .....
     
    Last edited: Feb 4, 2018
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