Cut Sheet

Descriptive bulletin | FT Flexitest family 11
4.7. Switch handles
Switch handles are made of a molded thermoplastic material.
They are typically black for potential and current circuits, red
for trip circuits. In addition to black and red, switch handles
are also available in various other colors (brown, purple, green,
yellow, blue, white, and orange) for simple circuit identification.
Each handle has a dovetail indentation that can hold a circuit
identification label.
Knife blade switches can be operated independently, or ganged
together with a horizontal interlocking bar to suit testing needs.
A hole runs through the middle of each switch handle to allow
insertion of interlocking bars that can mechanically tie 2, 3, 4,
5, 6, 8, 10, or 14 adjacent switch handles together. Interlock-
ing bars are ordered as a separate line item and installed by the
customer ; see “Test plug & accessories – ordering information”
on page 28.
4.8. Terminal connections
Connection terminals are located at the rear of the switch
(except on the front connected FT-1F). Most Flexitest switch
terminals are marked with a white raised 3-D numbering, which
allows easier identification of poles along the rear of the switch
(1 to 20 on FT-1 and 1 to 28 on FT-14), as shown on Figure 1,
page 8). Each pair of numbered terminals is associated with a
matching pole designated by a letter on the front of the switch.
All required terminal hardware is supplied with every Flexitest
switch (see Figure 4).
Screw terminals are provided standard with all Flexitest switch-
es. Connections are made with a hex washer head screw - #8
thread size (0.164-32), 1/4” hex head.
Stud and nut terminals are an optional feature. Connections are
made with two washers and a nut. A special (5/16”) nut driver
can be purchased from ABB to connect to stud terminals, see
“Test plug & accessories - ordering information” on page 28.
Switch handles with interlocking bar
Figure 4. FT Switch terminals, rear view (FT-1 shown)
Figure 3. FT Switch terminals, rear view (FT-1 shown)
! Warning
Connections to ALL equipment should be made using stan-
dard and safe connection practices.
Recommended maximum torque values for all FT-1 and FT-14
terminals is 16 in-lbs. Exceeding this torque may result in
damage to terminal threads.
Even number terminals (bottom row) of Flexitest switches
should be connected to voltage transformers and current
transformers, while odd number terminals (top row) should
be connected to equipment that is to be isolated, such as
meters and relays.
Max Lug Size = Yellow 12-10 ga. Ring Terminal