Only licensed experts may install electrical components. They
must adhere to local and state legislation and regulations.
WARNING!
Make sure that you prepare and connect only de-energized wires.WARNING!
Keep away from live circuits. Operating personnel must observe
safety regulations at all times.
WARNING!
If the diameter of your mains power cable is not compatible with
the cable gland marked AC in or DC in, you can use either of the two cable
glands marked Spare (diameter 5 ... 10 mm (0.2 … 0.39 in)). If you are not
wiring any relay outputs, you can also use cable gland marked Relay out
(diameter 7 ... 12 mm (0.28 … 0.47 in)). If the AC in or DC in cable gland is left
unused, remember to plug it so that the cabinet remains tight.
If the power supply unit has no suitable cable gland free, you can replace the
cable gland marked AC in or DC in with a certified cable gland that is suitable
for protecting the cable and providing strain relief.
WARNING!
1. Install needed external disconnection and overcurrent protection devices (for example,
circuit breakers) for the mains power connection. Note the following:
• The external disconnection and overcurrent protection device for AC mains power
(OPTPSU1) must be rated 16 A or 20 A at 250 V AC, and must conform to any
additional local regulations.
• The external disconnection and overcurrent protection device for DC mains power
(OPTPSU2) must be rated 16 A at 250 V DC and conform to any additional local
regulations.
External overcurrent protection device, such as a circuit
breaker, must be installed to the supply side and it must be suitable for
the applicable operating temperature range in order to comply with
the EN 61010-1 electrical safety standard.
CAUTION!
• The disconnection device must be visible from the DGA monitor, or lockable with a
key to prevent accidental switching on during installation and maintenance.
• The DGA monitor should not block access to the disconnection device after it has
been installed. The disconnection device should remain easy to operate.
OPT100 Installation Guide M211857EN-R
60
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