ABB Zenith ZBTS T Series, Installation And Operating Instruction, Page: 60 / 112

60 Zenith ZBTS T-series 100-1200A, I N S TA LL ATI O N A N D O PER ATI N G I N S TR U C TI O N
1
Automatic Transfer Switch, I/O Contacts Cabling Rating / Remark
Generator start/stop Cable size:
(Internal use only *)
0.5…2.5 mm
2
24...14(12) AWG
Stripping length; 6,5 mm, 0,255"
Common, voltage supply 1 5 A@250 Vac (AC-1), 5 A@30 Vdc
Generator start/stop NO 2
Generator start/stop NC 3
Output relay features
Cable size: 0.5…2.5 mm 2
24...14(12) AWG
Common, voltage supply
(Available for customer connections **)
5 5 A@250 Vac (AC-1), 5 A@30 Vdc
Alarm/Product available 6
Programmable output
(default; Alarm/Product
available) 6
Fire Fighting applications Cable size:
(Internal use only)
0.5…2.5 mm
2
24...14(12) AWG
Only in delayed transition types,
I – O – II or II – O – I
Fire fighting input 24 Vdc (+) 10 SELV
Fire fighting input 24 Vdc (-) 11 Transfers to O/OFF position,
locks the logic and signals alarm
Input contact features Cable size: 0.5…2.5 mm
2
24...14(12) AWG
Do not connect to any
power supply
Common input
(Internal use only)
12 24 Vdc 5 mA
Programmable input
(default; Emergency stop) 13
Programmable input
(default; Remote test on
load) 14
Programmable input
(default; Remote test off
load) 15 Only in delayed transition,
I – O – II or II – O – I
* See Chapter 7.2.7 Engine/Generator Start Control Connections
** See Chapter 7.2.8 Customer Connections, I/O Signals
6 5
O1 C
10 11
+
-
FIRE
24V
I3
14 15 12 13
I1 I2 C
1 2 3
G
~
1 COMMON
2 CLOSES TO START
3 OPENS TO START
—
Table 6.2 I/O Contacts; cabling In ATS and Bybass. Available for customer connections is only
"Common, Voltage Supply". All other I/O contacts in switches are for internal use only.
See also the table 6.6, Bypass-Isolation Transfer Switch: I/O contacts, default settings