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  • contactors

    I've got the newer contactors that are made from GE model # RL4R 22E, does anyone know where I can get some replacment contacts? They suposedly have them out there.
    There is always more to life, but would someone tell me what it is!

  • #2
    Re: contactors

    Replace them with Bowltronics SS units.

    Comment


    • #3
      Re: contactors

      got to love triac solid state contactors, really funny when they fail!

      we use modern contactors and replace them when they wear out!

      we dont have any chassies in the company that have the old fasioned contactors, we use the alled bradley and siemens contactors from RS
      Want your old pins collecting anywhere in the UK? email me on jezsmith@aol.com

      Comment


      • #4
        Re: contactors

        Originally posted by 82/70 king:
        Replace them with Bowltronics SS units.
        <font size="2" face="Verdana, Helvetica, sans-serif">Agreed. Same price as the allen bradleys, no moving parts, install and uninstall with fastons. A superior products, and they come with a warranty.
        My mom always said there was one crazy person on every bus,... but I could never find him.

        Comment


        • #5
          Re: contactors

          I've seen those SS contactors, those will be the next ones I buy when the orignals burn out. I just recently bought these ones (3-4 months ago) and was just curious to see if anyone had some input.
          There is always more to life, but would someone tell me what it is!

          Comment


          • #6
            Re: contactors

            Jez, what happens when the go "boom"/fail.
            There is always more to life, but would someone tell me what it is!

            Comment


            • #7
              Re: contactors

              I HAVE INSTALLED ABOUT 75 CHASSIE WORTH OF THE CONTACTORS WITH THE SS STYLE FROM BOWL-TRONICS. BEST THING I HAVE EVER SEEN. YOU CAN ALSO GET THEM WHERE YOU CAN MOUNT RUN BUTTONS ON THE SIDE OF THE CHASSIES. YOU WILL HAVE NO MORE CONTACT STICKING CAUSING MOTOR COAST. THE ONLY THING IS IF YOU GO TO WORK ON ANY OF THE MOTOR CIRCUITS BE SURE TO UNPLUG THE POWER CORD OF THE MACHINE TO PREVENT ANY SHORTING OF THE CIRCUIT. THE ONLY PROBLEM I HAVE SEEN WITH THEM HAS BEEN CAUSED BY HUMAN ERRORS.PLUS LIKE SOMEONE SAID ABOVE YOU CAN EASILY CHANGE THEM IF YOU NEED TO. THEY PLUG ONTO THE BOARDS WITH FEMALE SPADE TERMINALS. I SUGGEST THEM TO ANY HOUSE I DO SERVICE WORK AT.PRICE WISE YOU CAN REPLACE TWO OF THEM FOR WHAT THREE SETS OF THE OLD CONTACTS COST.

              Comment


              • #8
                Re: contactors

                I have been replacing original contactors with the complete unit from Grainger for $55, Part #3EA15. One thing I like about them is that they have an extra set of NO contacts that I add in a jumper to spread the current across three contacts instead of two.

                I’m thinking of ordering the SS from Bowltronics. Even if you don’t know how to test a triac, they only cost a buck to replace. I will have to see what safety features are built in before I install one. Hopefully there is only one triac that is controlled for both upper and lowers because:

                I play around with a lot of experimental circuits and have found that when a triac goes bad, it usually doesn’t go bang, they just open or short internally. The latter is my biggest concern. Because if the triac (or logical driver) that replaces the lower contact shorts (on always) and the triac (or logical driver) that replaces the upper contacts is called upon (by the chassis) the capacitors in the wire way will go kablooie!!!

                Triac

                Comment


                • #9
                  Re: contactors

                  Triac....I have not lost 1 cap. in over 4 years of service.....I have had both caps replaced in all chassis for over 2 years.

                  Comment


                  • #10
                    Re: contactors

                    King

                    Why would you be replacing caps in all your chassi's when they are bypassed through your Omega TEK board?

                    Comment


                    • #11
                      Re: contactors

                      Thanks King. Have you ever blown a capacitor in the wire way with the SS installed?

                      I haven’t had one blow in 8 years with mechanical relays, so I’m just a little skeptical.

                      I understand the reliability of a well designed solid state circuit. Just concerned with any safety features that might be built in.

                      I am seriously thinking of trying them if they can convince me that the triac(s) can’t be fired simultaneously.

                      Comment


                      • #12
                        Re: contactors

                        No sir. Not with the SS.

                        Comment


                        • #13
                          Re: contactors

                          from table head:

                          "Jez, what happens when the go "boom"/fail. "

                          you slap the spare chassis on and put another contactor in to replace the one that failed, we have a good source of inexpensive reliable contactors.

                          itsstill fairly rare for them to fail, i might change one every 6-8 weeks and we do very very high lineage
                          Want your old pins collecting anywhere in the UK? email me on jezsmith@aol.com

                          Comment


                          • #14
                            Re: contactors

                            once you add import duty and shipping, stuff from the states gets expensive, we also run 240v 50hz and not all the solid state stuff is rated for it
                            Want your old pins collecting anywhere in the UK? email me on jezsmith@aol.com

                            Comment


                            • #15
                              Re: contactors

                              Just for clarification , Allen Bradley also made/makes an enclosed style replacement contactor kit. Sometimes folks just hear allen bradley and think open contacts. I have about eight of the enclosed ABs laying around.....
                              The impossible often has a kind of integrity to it which the merely improbable lacks.

                              Comment

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