Liebert Autochangeover Controllers AC4 - Manual (Page 3)

3
Dimensions
Wiring Specifications
Connection Supported Wire Type Maximum Wire Length Rating
Digital
Input
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
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)
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
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
* Recommended
Front view
12"
(304.8mm)
14.25"
(361.95mm)
2.85"
(72.39mm)
Top/bottom view