0 wiring and connections, 1 wiring specifications, Table 4 wiring specifications – Emerson Autochangeover Controllers AC8 User Manual
Page 21: Iring, Onnections, Wiring specifications, Table 4, 0 - wiring and connections ) with either mount, Wiring and connections, Caution
Wiring and Connections
13
3.0
W
IRING
AND
C
ONNECTIONS
3.1
Wiring Specifications
Input and output connections to the AC8 may be made in any order—it is not necessary, for example,
to make all input connections before making any output connections. Use copper conductors only for
all wiring.
!
CAUTION
Switch OFF electric power to the AC8 before installing any wiring to the unit or changing
input or output connections. The Power On/Off switch is in the top left corner of the unit, just
below the battery pack.
Table 4
Wiring specifications
Connection
Supported Wire Type
Maximum Wire Length
Rating
Digital
Input/
EPOP
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
750 ft. (225m)
Dry Contact
(24VDC,
10 mA)
Digital
Output/
Control
Relay
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
18 AWG*
(recommended)
20 AWG
22 AWG
24VAC@3A
@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)
@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)
@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)
Analog Input
2-Wire
Transducer
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
750 ft. (225m)
4-20 mA Signal
Input Selectable
Power Source
(12/24VDC)
Analog Input
4-Wire
Transducer
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 8489
Plenum - Belden 88489
750 ft. (225m)
4-20 mA Signal
Input Selectable
Power Source
(12/24VDC)
Common
Alarm
Output
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
18 AWG*
(recommended)
20 AWG
22 AWG
24VAC
@3A
@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)
@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)
@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)
Communication
RS232
Null Modem Cable
50 ft. (15m)
N/A
Communication
EIA422
SiteScan
18-22 AWG Stranded & Shielded
22 AWG* (recommended)
Non Plenum - Belden 9461
Plenum - Belden 88761
1000 ft. (300m)
N/A
Communication
EIA485
18-22 AWG Stranded & Shielded
22 AWG* (recommended)
Non Plenum - Belden 9461
Plenum - Belden 88761
3000 ft. (900m)
N/A
Phone/Modem
Line
4 Wire (Pins 3 & 4)
RJ11 Connector
N/A
N/A
24VAC Power
Connection
(TB7)
18-22 AWG Stranded & Shielded
18 AWG* (recommended)
Non Plenum - Belden 8770
Plenum - Belden 88770
150 ft. (45m)
24VAC
@1.3A
Power Connections (Transformer Module)
115VAC
14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE
150 ft. (45m)
115VAC
@4A
230VAC
14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE
150 ft. (45m)
230VAC
@0.5A
* Recommended