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Pelco Manual C478M-L (11/03) 5
Figure 3. EH3515-1/-1HD/-2/-2HD/-3/-3HD Wiring Diagram
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2
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5
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9
10
INPUT, AC HIGH
INPUT, AC LOW (NEUTRAL)
GROUND
120 VAC MODEL
DEFROSTER
BLOWER
REAR HEATER
FRONT HEATER
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2
3
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5
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7
8
9
10
DIODE
BRIDGE
INPUT, AC HIGH
INPUT, AC LOW (NEUTRAL)
GROUND
24 VAC MODEL
DEFROSTER BLOWER
RED
BLK
RED
BLK
CAP
REAR HEATER
FRONT HEATER
CAUTION:
When using a single power source for both camera and accessories, consider the camera power
consumption when determining the wire gauge. Table A does not include camera power.
Table A. Enclosure Accessory Wiring Distances
The following cable sizes are the minimum recommended for use with the heater and defroster combination in enclosures in the
EH3508 Series, and the heater, defroster, and blower combination in enclosures in the EH3512 Series and EH3515 Series only.
Model Number Input Voltage Accessories Power Consumption Cable Size Cable Distance
EH3508-1 120 VAC Heater 13 watts 20 AWG 5,456 ft (1,662 m)
EH3512-1HD at 60 Hz Defroster 18 AWG 8,680 ft (2,645 m)
16 AWG 13,777 ft (4,199 m)
14 AWG 21,978 ft (6,698 m)
EH3508-2 24 VAC Heater 13 watts 20 AWG 218 ft (66 m)
EH3512-2HD at 60 Hz Defroster 18 AWG 347 ft (105 m)
16 AWG 551 ft (167 m)
14 AWG 879 ft (267 m)
EH3508-3 230 VAC Heater 13 watts 20 AWG 20,045 ft (6,109 m)
EH3512-3HD at 50 Hz Defroster 18 AWG 31,890 ft (9,720 m)
16 AWG 50,612 ft (15,426 m)
14 AWG 80,738 ft (24,608 m)
EH3512-1 120 VAC Heater 17 watts 20 AWG 4,172 ft (1,271 m)
at 60 Hz Defroster 18 AWG 6,658 ft (2,023 m)
Blower 16 AWG 10,535 ft (3,211 m)
14 AWG 16,806 ft (5,122 m)
EH3512-2 24 VAC Heater 15 watts 20 AWG 189 ft (57 m)
at 60 Hz Defroster 18 AWG 300 ft (91 m)
Blower 16 AWG 477 ft (145 m)
14 AWG 761 ft (231 m)
EH3512-3 230 VAC Heater 22 watts 20 AWG 11,845 ft (3,610 m)
at 50 Hz Defroster 18 AWG 18,844 ft (5,743 m)
Blower* 16 AWG 29,907 ft (9,115 m)
14 AWG 47,709 ft (14,541 m)
EH3515-1 120 VAC Heater 27 watts 20 AWG 29 ft (8 m)
at 60 Hz Defroster 18 AWG 47 ft (14 m)
Blower 16 AWG 75 ft (22 m)
14 AWG 120 ft (36 m)
(Continued on next page)
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2
3
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9
10
INPUT, AC HIGH
INPUT, AC LOW (NEUTRAL)
GROUND
230 VAC MODEL
DEFROSTER
REAR HEATER
FRONT HEATER
120 VAC BLOWER
RESISTOR
NOTE: BLOWER APPLIES
TO -1/-2/-3 MODELS ONLY.
*Blower and resistor are 4.5 watts each for a total circuit power of 9 watts.