Watlow EZ-ZONE
®
ST
•
13
•
Chapter 2 Install and Wire
98
99
CF
CD
CE
B5
D6
D5
L2
K2
T1
S1
R1
L3
K3
J3
A1
L4
T2
S2
R2
2
1
EZ-ZONE™ ST
Patent Pending
Integrated Control Loop
LIMIT
OUT 3
SSR
STATUS
OUT 2
1 2 3
4
ON
fuse
neutral
hot
earth
ground
1
6
3
4
2
5
EZ-ZONE™ ST
Patent Pending
Integrated
Control Loop
–
+
Address
Selection
98
99
CF
CD
CE
B5
D6
D5
L2
K2
T1
S1
R1
1 2 3 4
ON
L3
K3
J3
A1
L4
T2
S2
R2
LIM
IT
O
U
T 3
S
S
R
S
TA
TU
S
O
U
T 2
zone 1
20 A
maximum
Do not switch or
fuse neutral wire!
120V
Å
(ac)
+
+
-
-
fuse
N.O. (Output 4)
Power
98
99
CF
CD
CE
B5
D6
D5
L2
K2
T1
S1
R1
L3
K3
J3
A1
L4
T2
S2
R2
2
1
EZ-ZONE™ ST
Patent Pending
Integrated Control Loop
LIMIT
OUT 3
SSR
STATUS
OUT 2
Power
1 2 3
4
ON
contactor
coil
limit relay
customer supplied
limit contactor
fuse
System with a limit using an external
contactor (ST _ L - A _ _ _ - _ _ _ _) .
System (with optional RUI) using the
auxiliary terminals (20 A maximum) to
operate a secondary load .
Controller label .
Heat sink label .
Base label .
The model number at the top of each
label identifies the controller configura-
tion .
See Ordering Information and Model Num-
bers in the Appendix for more detailed infor-
mation .
ST _ _ - _ L _ _ - _ _ _ _ 24 to 28V
‡
(ac/dc)
ST _ _ - _ H _ _ - _ _ _ _ 100 to 240V
‡
(ac/dc)
ST _ _ - _ 1 _ _ - _ _ _ _ 24V
Å
(ac)
ST _ _ - _ 2 _ _ - _ _ _ _ 120V
Å
(ac)
ST _ _ - _ 3 _ _ - _ _ _ _ 208 to 240V
Å
(ac)
Sub-assembly Labels
Top Level
Module
Patent Numbers
Heat
Sink
ST??-????-B???
US PAT. 5598322;
D531138
ST??-????-C???
US PAT. 5598322;
D529874
Base
ST??-A???-????
US PAT. D553581;
D558683
ST??-[B,F]??-???? US PAT. D553094;
D553099
D553098; D555601; D555606
SN:??????
DC:????
US PAT. 6005577;
??? V~50/60 Hz 140VA MAX
STRC-0???-????
ST??-????-????
SEE MANUAL 0600-0052-0000
SN:??????
DC:????
STRT-BASE-????
0600-0052-0000
ST??-????-????
SEE MANUAL
SEE PATENT CHART
0600-0052-0000
ST??-????-????
STRT-HS??-000?
DC:????
SN:??????
SEE PATENT CHART
SEE MANUAL
SCCR 200KA TYPE 2
