Connecting Ac (Mains) Power - Vaisala Optimus OPT100 Installation Manual

OPT100 Installation Guide
4.9 Connecting AC (Mains) Power
• AC power cable with 2.5 mm
external diameter. Must be compliant with local regulations for mains power
cables.
• Cable stripping tool
• Screwdriver with 3 mm (0.12 in) wide slotted head
• Adjustable wrench
WARNING!
must adhere to local and state legislation and regulations.
WARNING!
WARNING!
safety regulations at all times.
WARNING!
the cable gland marked AC 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 cable gland is left unused, remember to plug
it so that the enclosure remains tight.
If the power supply unit has no suitable cable gland free, you can replace the
cable gland marked AC in with a certified cable gland that is suitable for
protecting the cable and providing strain relief.
1. Install an external disconnection device for the AC power connection (for example, a
circuit breaker). Note the following:
• The disconnection device must be rated 16 A or 20 A at 250 VAC, and must conform
to any additional local regulations.
• 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.
2. Clearly mark the disconnection device as the disconnection device for the OPT100 DGA
Monitor.
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2
(AWG10) wires and 9 ... 16 mm (0.35 ... 0.63 in)
Only licensed experts may install electrical components. They
Make sure that you prepare and connect only de-energized wires.
Keep away from live circuits. Operating personnel must observe
If the diameter of your mains power cable is not compatible with
M211857EN-F