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7
Control Output Wiring
The following figures show the proper control output
wiring for the various 2110 configurations.
R1 (1 Amp Relay) and S0 (1 Amp, Solid State Relay)
Output Wiring
When driving a contactor coil or other inductive load,
an appropriately rated AC snubber circuit is recom-
mended (Chromalox Part. No. 0149-01305), as shown
in Figure 3.9.
Figure 3.9
Control Output Wiring–R1 and S0
Figure 3.10
Control Output Wiring–R3
Figure 3.11
Control Output Wiring–V0
R3 (20 Amp Relay) Output Wiring
1/4” fast-on tabs are provided with
the R3 output.
V0 (Solid State Relay Drive,
24Vdc, 40mA) Output Wiring
NC
NO
COM
Fuse
Load
Snubber
120/240
VAC
Neutral
Fuse
Load
120/240
VAC
Neutral
NC
NO
COM
NC
NO
COM
NO
COM
NC
NO
COM
Fuse
Load
120/240VAC
AC Neutral
+
+
-
-
SSR
4115
R3 (20 Amp Relay) Output Wiring
1/4” fast-on tabs are provided with the R3 output.
Figure 3.9
Control Output Wiring–R1 and S0
Figure 3.10
Control Output Wiring–R3
Figure 3.11
Control Output Wiring–V0
R3 (20 Amp Relay) Output Wiring
1/4” fast-on tabs are provided with
the R3 output.
V0 (Solid State Relay Drive,
24Vdc, 40mA) Output Wiring
NC
NO
COM
Fuse
Load
Snubber
120/240
VAC
Neutral
Fuse
Load
120/240
VAC
Neutral
NC
NO
COM
NC
NO
COM
NO
COM
NC
NO
COM
Fuse
Load
120/240VAC
AC Neutral
+
+
-
-
SSR
4115
V0 (Solid State Relay Drive, 24Vdc, 40mA) Output
Wiring
Figure 3.9
Control Output Wiring–R1 and S0
Figure 3.10
Control Output Wiring–R3
Figure 3.11
Control Output Wiring–V0
R3 (20 Amp Relay) Output Wiring
1/4” fast-on tabs are provided with
the R3 output.
V0 (Solid State Relay Drive,
24Vdc, 40mA) Output Wiring
NC
NO
COM
Fuse
Load
Snubber
120/240
VAC
Neutral
Fuse
Load
120/240
VAC
Neutral
NC
NO
COM
NC
NO
COM
NO
COM
NC
NO
COM
Fuse
Load
120/240VAC
AC Neutral
+
+
-
-
SSR
4115
S1 (Solid State Relay, 5 Amps) and
S2 (Solid State Relay, 10 Amps) Output Wiring
Note: 2110 model S2 has a fan. 2110 model S1 does
not have a fan.
Figure 3.12
Control Output Wiring–S1 and S2
NC
NO
COM
Fuse
Load
120/240
VAC
Neutral
Fan
Instrument Power Wiring
Make 120 or 240 VAC instrument power connections
to terminals as shown in Figure 3.13.
Figure 3.13
90-260 VAC Instrument Power Connections
120/240VAC
Neutral
Ground
NC
NO
COM
Alarm Wiring
The Form C Relay Output is connected as shown in
Figure 3.14.
Figure 3.14
Alarm Connections
C
NO
Alarm Out
NC
NC
NO
COM
NC
NO
COM