Installation 
3/07  UDC3500 Universal Digital Controller Product Manual  37 
L1 
L2/N
 4 
 5 
 7 
 8 
 9 
28 
29 
30 
31 
32 
33 
34 
35 
36 
 6 
 Cool Relay Load
Load 
Power 
Supply
 
 Heat Relay Load
Out Relay #1
 N.O.
N.O.
Out Relay #2
1 
Dual Electromechanical relays are rated at 2 Amps @120 Vac or 240 Vac or
 
30 Vdc. Customer should size fuses accordingly. Use Fast Blo fuses only.
 
1 
 
Figure 2-18 Output #2 – Dual Relay Output for Time Duplex 
See Table 2-6 and Table 2-7 for other information about output types. 
 
 
L1/Hot 
 
1 
Dual Electromechanical relays are rated at 2 Amps @120 Vac or 240 Vac or
 
30 Vdc. Customer should size fuses accordingly. Use Fast Blo fuses only.
 
See Input 3 Wiring Diagram for Slidewire Connections.
 
2 
L1 
L2/N
 4 
 5 
 7 
 8 
 9 
28 
29 
30 
31 
32 
33 
34 
35 
36 
 6 
Motor 
 
Power 
 
Supply
 
Close (CCW)
 
Open (CW)
 
L2/N 
 
1 
Out Relay #1
 N.O.
N.O.
Out Relay #2
2 
Motor 
 
Figure 2-19 Output #2 – Dual Relay Output for Position Proportional or 
Three Position Step Control 
See Table 2-6 and Table 2-7 for other information about output types. See Figure 2-8 for 
Slidewire connections.