Installation and Safety Guide
9
Applying Power to the Switch
The specific power supply requirements for the Rapier 48w are clearly displayed
on the rear of the switch. If the supply is outside the accepted range for the
switch, the switch may not operate or damage to the switch may result.
Read
“Safety” on page 20
of this document before connecting a DC power
supply.
Warning
Only trained and qualified personnel should connect a DC power
supply.
For centralised DC power connection, the switch should be installed in
restricted access areas only
(such as dedicated equipment rooms or
equipment closets) in accordance with Articles 110-16, 110-17, and 110-18 of
the National Electrical Code, ANSI/NFPA 70.
Damage to equipment may result if power is connected improperly.
Before working on equipment that is connected to power, remove jewellery
including rings, necklaces, and watches. Metal objects will heat up when
connected between power and ground, and can cause serious burns or weld the
metal object to the terminals.
DC supply cable and power supply
Supply cable specifications:
■
two-core cable is required
■
minimum core size: 2.1mm
2
(14 AWG)
■
minimum cable rating: 600 V, 90 degrees C
Power supply specifications:
■
48 VDC (40 to 60 VDC is acceptable)
■
supports either positive grounded or negative grounded operation
■
a 15Amp certified/listed circuit breaker is required for circuit protection
