Pelco C655M-A manual Input Total VA Wire Gauge Voltage Consumed, 10VA

Page 5

Table C. Recommended Wiring Distances

The following are the recommended maximum distances (transformer to load) and are calculated with a 10-percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for AC-powered devices.) Distances are calculated in feet; values in parentheses are meters.

Input

Total VA

 

Wire Gauge

 

 

 

 

 

Voltage

Consumed

20

18

16

 

 

 

 

 

 

 

10

283 (86)

451

(137)

716 (218)

 

 

 

 

 

24 VAC

20

141 (42)

225 (68)

358 (109)

 

 

 

 

 

30

94 (28)

150 (45)

238 (72)

 

 

 

 

 

 

 

 

50

56 (17)

90

(27)

143 (43)

 

 

 

 

 

 

You can use Table D as a guide to determine the necessary wire gauge (AWG) for various cable distances that provide 24 VAC power. Or use it in a reverse fashion to determine the maximum allowable cable distance for a particular wire gauge. Table D applies when using 2-conductor copper wire, with characteristics similar to West Penn 221-227 unshielded cable. Calculations are based on a 10-percent voltage drop (generally the maximum allowable drop for AC-powered devices).

The minimum acceptable voltage is calculated as follows: 24.0 VAC

–02.4 (10%)

21.6 (Minimum Acceptable Voltage)

The minimum acceptable voltage used to create Table D was 21.6 volts. Therefore, the 24-volt output has an acceptable range from 24 volts down to 21.6 volts.

Table D. Required Wire Gauge

 

 

CCD Camera

 

PT480 Pan/Tilt

 

Indoor Spectra

 

Require Wire Gauge Table (AWG)

 

Outdoor Spectra

 

 

 

 

 

 

WIRE

 

 

 

PT570 Pan/Tilt

 

Esprit Pan/Tilt

 

inch-14 Intercept

 

CX9000 Receivers

 

 

!Equipment Loads

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10VA

 

20VA

 

30VA

 

40VA

 

50VA

 

60VA

 

70VA

 

80VA

 

90VA

 

100VA

 

200VA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000

12-14

 

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

900

 

12-14

 

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

800

 

12-14

 

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

700

 

12-16

 

 

12

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

600

 

12-16

 

 

12

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

500

 

12-16

 

 

12-14

 

12

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

 

12-18

 

 

12-14

 

12

 

12

 

12

 

12

 

12

 

N/A

 

N/A

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300

 

12-18

 

 

12-16

 

12-14

 

12

 

12

 

12

 

12

 

12

 

12

 

N/A

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

200

 

12-20

 

 

12-18

 

12-16

 

12-14

 

12-14

 

12

 

12

 

12

 

12

 

12

 

N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

12-22

 

 

12-20

 

12-18

 

12-18

 

12-16

 

12-16

 

12-16

 

12-14

 

12-14

 

12-14

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XX-XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Recommended Wire Gauge (AWG) using 24 VAC

N/A – Distance and load not recommended for any wire size between 12-22 (AWG)

C655M-A (1/07)

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Contents MCS*E Series Master Power Supply Models DescriptionPower Supply Model Product InstallationApplication Examples Input ConnectionsOutput Connections MCS*E Series Unit Wiring Connector Diagram10VA Input Total VA Wire Gauge Voltage ConsumedSpecifications MaintenanceMechanical ElectricalProduct Warranty and Return Information ISO9001
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