Installation 
 
If the load current is less than the minimum rated value of 20 mA, then there may be residual voltage across both 
ends of the load even if the relay is turned off.  Use a dummy resistor as shown to counteract this.  The total 
current through the resistor and the the load must exceed 20 mA.  Solid State Relays are zero-crossing type. 
2 
1 
Solid State relays are rated at 1 Amp at 25°C and derated linearly to 0.5 Amp at 55°C.  Customer should size 
fuse accordingly. Use Fast Blo fuses only. 
Dummy Resistor
 
2 
larm 
Relay#1
Output 
Relay#1
L1
 
L2/N
 4
 
 5
 
 7
 
 8
 
 9
 
 N.O.
N.C.
N.O.
 Relay Load 
Load  
Supply 
Power
Time Simplex
19 
20
 
21 
22
 
23 
24
 
25 
26 
27
 
Time Duplex 
larm 
Relay#2
N.C.
N.O.
 6
 
larm 
Relay#1
Output 
Relay#1
L1 
L2/N
 4
 
 5 
 7 
 8 
 9 
 N.O.
N.C.
N.O.
19 
20
 
21 
22 
23
 
24 
25
 
26 
27
 
2 
Output 
Relay#2
N.O.
 6 
Relay Load 
To terminal 
7 or 9
 
Relay Load 
Load  
Supply 
Power
2 
3
 
Load  
Supply  
Power 
Load  
Supply  
Power 
Dummy Resistor 
Dummy Resistor 
1 
 Relay Load 
Electromechanical relays are rated at 5 Amps @ 120 Vac or 240 Vac or 30 Vdc. 
Customer should size fuses accordingly. Use Fast Blo fuses only.
 
3
 
1 
1 
To terminal 
4 or 6
 
 Relay Load 
To terminal 
7 or 9
 
 Relay Load 
3
 
3
 
Load  
Supply  
Power 
Load  
Supply  
Power 
 
Figure 2-9 Solid State Relay Output 
See Table 2-6 for relay terminal connections for other Output Algorithm Types. 
 
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