Greatest reference in our business is our successful past

TJB COUPLERS

 

8 PITCH COUPLERS

TJB Supplies three methods of mechanical connection for high-voltage cable couplers. The oldest method is the 8 pitch thread. This closure incorporates AXI-NUT and BLUNT-START, RELIEVED-THREAD design, all which contribute to easier operation and longer life.

The floating AXI-NUT allows the plug to be inserted into the socket,
the nut more easily started, and secures the coupler by compressing
the O-ring seal. The "BLUNT-START" and "RELIEVED-THREAD" 
features aid in preventing "FIRST-THREAD ROLLOVER," common 
in couplers not supplied with these features, which may result in jamming

4 PITCH

              

A second type of closure supplied incorporates a 4 pitch acme, DOUBLE-START thread, again with "BLUNT-START" and "RELIEVED THREAD"  features. 

This design also includes the same AXI-NUT action found on our 8-pitch coupler,
making the coupling action more rapid then other brands.

 

NO THREAD

The third and BEST type of closure utilizes a    pin-and-slot design which requires only a 90 degree movement of the nut to lock, close and    compress the "0" ring seal. Detents prevent unintentional opening due to    vibration.

     This design lends itself to easy      conversion of    existing 8 or 4 pitch threaded couplers to the NO-THREAD concept. such a conversion    requires a minimum of time (less than an hour for a set of couplers) and is economical in    conversion cost. 

                             

 

Locking Connector

 

Operating time (opening or closing) is measured in seconds, rather than    the 5 to 15 minutes that may be required with other types of closures

 

 

 

HIGH VOLTAGE DESIGN FEATURES


3 END-BELL SIZES,  
eases tight fits,

Where larger, stiffer cables are involved,
    TJB offers a choice of longer, larger-entrance end-bells. Two sizes are available that can    accommodate cable sizes through 4 1/4" O.D.,  with clamps to fit cables 1 1/4"- 4 1/4"    O.D. 

TEFLON OR HARD    EP INSULATORS... 
to meet industry needs,

TJB couplers offer a choice of a semi-rigid
    EP (Ethylene Propylene) molded insulator
    or a Teflon insulator introduced by TJB in
    1994 which has rapidly become the industry
    standard.
 

8 TIMES THE CREEPAGE 
    PATH TO GROUND

Creepage path between ground and ground check with most couplers is as small as    1/8", a distance easily  bridged in damp, dirty locations, resulting in short    circuiting the desired continuity check through the cable. TJB insulators have 8 times the    creepage path from ground check to ground of other couplers. 
      
            CLICK  IMAGE TO ENLARGE
            TJB                  OTHER

STAINLESS STEEL THREAD
reduces galling,

Galling or "Lock-up" of aluminum-to-aluminum threads which can occur after    surface film, dry lubricant or  anodizing wear off, is prevented by this original TJB    design feature. A stainless steel insert in the TJB locking nut produces a connection    which is non-corrosive and less subject to dirt accumulation, eliminating problems    from    aluminum-to-aluminum contact.


 

 

 

GEAR MOUNTED SOCKET

 
           

GEAR MOUNTED PLUG

             

ASSEMBLED COUPLER

 

SQUARE PLUGS BURNING UP? 

TJB HAS THE            SOLUTION!!
            Our new line of quarter turn couplers has been tested at 800 amps            continuous duty and are GUARANTEED to solve your contact            burning problems. If you ever have contact burning problems with one            of our new couplers, we will replace it with a new one. That is how            sure we are that TJB couplers are capable of handling your loads.

            As our salespeople traveled around coalfields they heard the same            complaints about square plugs-broken housings and burned contacts

            Having thirty years of coupler designing experience behind us, we            have developed a replacement that will bolt right into your existing            power center panel and eliminate your coupler headaches once and for            all.

            Similar in design to our 15KV No-Thread (Quarter Turn), this smaller            coupler utilizes the same Teflon tubes that have so dramatically            reduced coupler failures in our high voltage line. Please order using the following numbers:

 

      

480V 700 AMP:

SFG48-Socket, Female Contacts, Gear Mounted
        PML48-Plug, Male Contacts, Line (Cable) Mounted
        SFL48-Socket, Female Contacts, Line (Cable) Mounted

 

 



1KV 700 AMP:

SFG1-Socket, Female Contacts, Gear Mounted
            PML1-Plug, Male Contacts, Line (Cable) Mounted
            SFL1-Socket, Female Contacts, Line (Cable) Mounted          

 

        

3KV 700 AMP:

SFG3-Socket, Female Contacts, Gear Mounted
            PML3-Plug, Male Contacts, Line (Cable) Mounted 
            SFL1-Socket, Female Contacts, Line (Cable) Mounted

            

5KV 700 AMP:

SFG5-Socket, Female Contacts, Gear Mounted
          PML5-Plug, Male Contacts, Line (Cable) Mounted
          SFL5-Socket, Female Contacts, Line (Cable) Mounted

 



CLOSES/OPENS IN 90 DEGREE ROTATION

 

 

 

 

EXPLOSION PROOF           
         

MEETS  MSHA AND IEEE TEST STANDARDS

The concept of replacing cables and cable couplers on high-voltage    equipment has been recognized as practical for many years. Now, with increased emphasis    being placed on limiting the number and frequency of splices made in trailing cables, the use    of permissible couplers and replaceable medium-voltage cables is gaining increasing    acceptance.

    TJB Trailing Cable Connectors are designed to expedite cable changes and minimize    downtime. Heavy-duty aluminum housings enclose impact-resistant insulators which support    pin-and-socket type contacts. Contacts attach to conductors by set screws, or by    soldering. TJB Connectors carry X/P-1944 MSHA Certification and are constructed in    accordance with Pennsylvania requirements. 

  DESIGN FEATURES  

TJB COUPLERS

 

 

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