Datasheet
EQUIVALENT CIRCUIT BLOCK DIAGRAMS/WIRING DIAGRAM
Load can be wired in position A or B inductive loads must be diode suppressed.
Trigger
Circuit
Control
Circuit
1
2
4/A2
3/A1
2
1
DC
V
+
-
DC
V
Load
Load
A
B
+
-
+
-
+
-
Current
Limiter
Recommended Wire Sizes
Terminal
Configuration
Wire Size
(Solid / Stranded)
Wire Pull-Out
Strength (lb)[N]
Output
Relay “U” suffix
Input
Relay “U” suffix
2 x 18 AWG (1 mm
2
) Stranded
2 x 10 AWG (6 mm
2
) Stranded
2 x 18 AWG (1 mm
2
) Stranded
2 x 12 AWG (4 mm
2
) Stranded
20 [88]
60 [266]
20 [88]
40[177]
THERMAL DERATE INFORMATION
DR2220D30U
0
5
10
15
20
30
25
20 30 40 50 60 70 80
Load Current (Amps)
Ambient Temperature (ºC)
Single unit (5)
Multiple units
DR2220D20U
Single unit (5)
Multiple units
0
5
10
20
15
20 30 40 50 60 70 80
Load Current (Amps)
Ambient Temperature (ºC)
MECHANICAL SPECIFICATIONS
Tolerances: ±0.02 in / 0.5 mm
All dimensions are in: inches [millimeters]
INPUT
+3/A1 -4/A2
OUTPUT
+1 -2
0.39
[9.9]
1.88
[47.8]
3.67
[93.2]
3.00
[76.2]
0.89
[22.5]
1.19
[30.2]
4.59
[116.5]
3.54
[90]
Protective Earth Connection
Protective Earth (PE) screw type recommended is
10-32 UNC standard not provided with SSR. Through
the use of a DIN rail ground (protective conductor)
terminal block, the DIN rail itself can be used as the
grounding bus bar. In this case, the zinc plated steel
material used for the DIN rail clip of DR22 models,
permits a secure path to ground and avoid the need of
a further PE connection.
10-32
Thread
Datasheet
DIN Rail Mount
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