2726188 Phoenix Contact, 2726188 Datasheet - Page 19

• Manufacturer Part Number: 2726188
• Description: INTERBUS Bus Coupler
• Manufacturer: Phoenix Contact

6452_en_02
3.3.2
3.3.3
3.3.3.1
A 120 V AC/230 V AC area must have a power terminal at one end and an end terminal at
the other.
WARNING: Dangerous contact voltage
The electrical power-level terminals for the 400 V AC area and connected machines refer
to equipment used in industrial plants. During operation, this equipment has dangerous,
live, moving or rotating parts. These can therefore cause considerable damage to health
or equipment, e.g., due to the unauthorized removal of protective covers or inadequate
maintenance.
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The instructions given in the terminal-specific data sheets must be followed
during installation and startup.
The notes on the procedures and the circuit details presented in the terminal-specific data
sheets should be understood in a general sense and the relevant application should be
tested to see if they apply.
Phoenix Contact cannot guarantee the suitability of the procedures or the circuit
suggestions described for the relevant application.
WARNING: Dangerous contact voltage
Please note that there are dangerous contact voltages when switching circuits that do
meet SELV requirements.
Connecting and disconnecting the terminals for the 120 V AC and 230 V AC voltage
areas is only permitted if the power supply is disconnected.
When working on the terminals and wiring, always switch off the supply voltage and
ensure it cannot be switched on again.
WARNING: Dangerous contact voltage in the event of ground faults
(e.g., because the FI circuit breaker has not tripped or the star point connection is "free")
Inline terminals for the 120 V AC and 230 V AC voltage areas should only be operated in
grounded AC voltage networks (AC networks).
Only qualified personnel may work on the power-level terminals or system (for the
definition, see Section 3.3.1 on page 3-2).
When working on the power-level terminals and the system, you must always keep
the operating instructions and other items of product documentation to hand and
observe the information therein.
It is prohibited for unqualified personnel to work on the power-level terminals, on the
machine or in their vicinity.
Safety notes for electrical equipment used in industrial
plants with a 400 V AC voltage
Installation instructions and notes for low voltage
terminals
Structure of a 120 V AC/230 V AC area
Important information about voltage areas
PHOENIX CONTACT
3-3