MetCam Technical Manual
Document P/N A1604870010
11
4.3.2
Preparing the Cable End
Cable properties to comply with MetCam terminal block:
The overall conductor length, from the cable gland entrance and towards the terminal block, depends on where the cable
ends inside the cable gland and the position of the conductor within the cable. As a reference, the minimal distance from
the center of the internal collar to the edge ports of the terminal block is shown in the following:
The straight line distance from the center of the cable gland port (the upper
part of it) to the leftmost terminal block port is 45 mm. to this length, one must
add the strip-length (10 mm) and some slack according to the type of
conductors within the cable in use.
The final overall length should add to this distance the amount in which the
cable gland is recessed inside the collar.
4.3.3
Opening and Closing the Back Cover for Accessing the Terminal Block
Do not open when energized!
The cover at the back of MetCam needs to be opened for accessing the terminal block and then needs to be closed
properly so that the unit will retain its explosion/flame proof certification.
The arrow in the picture to the left shows the set-screw that secures the cover.
To open the back cover, loosen the set screw using a 0.05 in. hex wrench, and
turn the back cover counter clock-wise.
The set-screw could end up at locations other than that shown since it is part of
the back cover.
A lanyard attaches the back cover to the MetCam body (on the inside) so it
cannot drop when opened.
Once all the electrical connections to the terminal block are done, hand-tighten
the back cover by turning it clock-wise. Verify the back cover has reached the
end-stop and secure it by tightening the set-screw.
The recommended torque for the set-screw is 0.45 Nm (4 lb./in.)
Terminal block connection technology
CAGE CLAMP® S
Conductor size solid
0.2 - 1.5 mm
2
Conductor size fine-stranded
0.2 - 1.5 mm
2
Conductor size fine-stranded
0.25 - 1 mm2 (with insulated ferrule)
Conductor size fine-stranded
0.25 - 1 mm
2
(with uninsulated ferrule)
AWG
24 - 16
Strip-length
9 - 10 mm/ 0.35 - 0.39 in
Conductor entry angle
0
0
to PCB
