Connection - Pepperl+Fuchs H-System Manual

H-System – Isolated Barriers and Termination Boards
Mounting and Installation
3.4

Connection

Danger!
Explosion hazard from live wiring of non-intrinsically safe circuits
If you connect or disconnect energized non-intrinsically safe circuits in a potentially explosive
atmosphere, sparks can ignite the surrounding atmosphere.
Only connect or disconnect energized non-intrinsically safe circuits in the absence of
a potentially explosive atmosphere.
Danger!
Danger to life from electric shock
Absent or insufficient insulation can result in electric shock.
• Maintain sufficient distance between the connection lines, terminals, housing, and
the environment.
• Insulate connection lines, terminals, and the housing from the environment.
Danger!
Danger to life from incorrect installation
Incorrect installation of cables and connection lines can compromise the function and
the electrical safety of the device.
• Observe the permissible core cross section of the conductor.
• When using stranded conductors, crimp wire end ferrules on the conductor ends.
• Use only one conductor per terminal.
• When installing the conductors the insulation must reach up to the terminal.
• Observe the tightening torque of the terminal screws.
Danger!
Explosion hazard from exposed conductors
Exposed conductors of inadequately attached cables can cause sparks that can ignite
the surrounding potentially explosive atmosphere.
When installing the device ensure that the cables are adequately attached.
Caution!
Property damage from use of inappropriate tool
Using an inappropriate tool may damage the screw heads.
• Use a slot-head screwdriver with a size of 3.5 x 0.5.
• Observe the tightening torque of the terminal screws. The tightening torque is
0.5 Nm to 0.6 Nm.
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