Honeywell UDC 3300 manual Controller 4 mm2, Due to the voltage drop caused by the in-rush current

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 (4 mm2).
	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.
	Figure 2-5 shows the wiring connections for line voltage.
	Figure 2-5		Line Voltage Wiring

1	Ground
2	Hot
AC/DC
Line	Neutral
Voltage

	10
L1	11
L2/N	12
22	13
23	14

24 15

25 16

2617

27

1

2

3

4

5

6

7

8

9

22607

1PROTECTIVE 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 adversly affect the system, supplementary bonding of the controller enclosure to a local ground, using a No. 12 (4 mm 2 ) copper conductor, is recommended.

2Provide 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.

4/00 UDC 3300 Controller Product Manual 19