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Line Voltage Wiring
This equipment is suitable for connection to 90-264 Vac or 24 Vac/dc, 50/60 Hz,
power supply mains. It is the user's responsibility to provide a switch and non-time
delay (North America), quick-acting, high breaking capacity, Type F, (Europe) 1/2 A,
250 V fuse(s) or circuit-breaker for 90-264 V; or 1 A, 125 V fuse or circuit breaker for
24 Vac/dc operation, as part of the installation. The switch or circuit-breaker should
be located close to the controller, within easy reach of the operator. The switch or
circuit-breaker should be marked as the disconnecting device for the controller
2
(4 mm
).
CAUTION
Applying 90-264 Vac to a controller rated for 24 Vac/dc will severely damage the controller
and is a fire and smoke hazard.
When applying power to multiple instruments, make sure that sufficient current is
supplied. Otherwise, the instruments may not start up normally due to the voltage
drop caused by the in-rush current.
AC/DC
Voltage
1
PROTECTIVE BONDING (grounding) of this controller and the enclosure in which it is
installed, shall be in accordance with National and local electrical codes. To minimize
electrical noise and transients that may adversely affect the system, supplementary bonding
of the controller enclosure to a local ground, using a No. 12 (4 mm
recommended.
2
Provide a switch and non-time delay (North America), quick-acting, high breaking capacity,
Type F (Europe), 1/2A, 250V fuse(s) or circuit-breaker for 90-264V; or 1A, 125V fuse or circuit
breaker for 24 Vac/dc operation, as part of the installation.
12/00
2
Line
Figure 2-4 Line Voltage Wiring
UDC3300 Basic Model: DC33XB User Manual
1
Ground
Hot
Neutral
Installation
L1
L2/N
22
2
) copper conductor, is
7
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