Series SD
Dual Output to 50A 600 Vac
DC Control
Part Number
SD24R50-06
SD24R50
SD24D50-06
SD48D40-06
SD48D50A
SD48D50A2
Description
12-280 Vac
12-280 Vac
12-280 Vac
24-500 Vac
24-600 Vac
24-600 Vac
FEATURES/BENEFITS
• Designed for all types of loads
• Dual output (two relays in one package)
• Faston terminals
• Connector for common or individual control
• Tight zero-cross window for low EMI
• High immunity to surges
DESCRIPTION
The Series SD dual-phase relays are designed for all
types of loads. The design incorporates two relays in a
single package. The relays utilize optical isolation to
protect the control from load transients. High-current
models are excellent for motor and phase angle control.
The 50A 600 Vac models are available with common
control connector or individual control connector.
APPLICATIONS
• Motor control
• Heating control
• Uninterruptible power supplies
• Light dimmers
• Industrial and process control
• On/Off controls of AC equipment
APPROVALS
All models are UL recognized.
UL File Number: E128555.
Part Number Explanation
SD
Series
48
R
50
-06
Feature
3
Switch Type
2
Line Voltage
1
Output Current - Amps
NOTES
1) Line Voltage (nominal): 24 = 240 Vac; 48 = 480 Vac
2) Switch Type: R = Random turn-on; D = Zero-cross turn-on;
3) Features: -06 = Faston terminals
A = Common control adapter
A2 = Individual control adapter
INPUT (CONTROL) SPECIFICATION
Min
Control Range
SD24
SD48D40-06
SD48D50XX
Input Current Range
All relays (See Fig. 3)
Must Turn-Off Voltage
All relays
Input Resistance (Typical)
SD24R50-06
SD48D40-06
SD48D50A
SD48D50A2
Reverse Voltage Protection
All relays
30
V
1000
1000
1400
1800
Ohms
Ohms
Ohms
Ohms
1
Vdc
3
mA
4
5
10
30
30
30
Vdc
Vdc
Vdc
Max
Units
BLOCK DIAGRAM
L
1
+
1
–
input
output
T
1
L
2
+
2
–
input
output
T
2
Figure 1a — All SD relays except SD48D40-06
L
1
+
1
input
–
output
T
1
L
2
+
2
–
input
output
T
2
Figure 1b — SD48D40-06
© 2003 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
SD 1
SD\032003\Q1
TELEDYNE [ TELEDYNE TECHNOLOGIES INCORPORATED ]
