© 2011 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com SD 1
SD\122011\Q4
Series SD
Dual Output to 50A 600 Vac
DC Control Solid-State Relay
Part Number Description
SD24R50-06 12-280 Vac
SD24R50 12-280 Vac
SD24D40-06 12-280 Vac
SD24R40-06 12-280 Vac
SD24D50-06 12-280 Vac
SD48D40-06 24-500 Vac
SD48D50A 24-600 Vac
SD48D50A2 24-600 Vac
Part Number Explanation
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
SD R50
48 -06
SeriesLine Voltage
1
Output Current - Amps
Switch Type
2
Feature
3
INPUT (CONTROL) SPECIFICATION
Min Max Units
Control Range
SD24 4 30 Vdc
SD48D40-06 5 30 Vdc
SD48D50XX 10 30 Vdc
Input Current Range
All relays (See Fig. 4a) 3 mA
Must Turn-O Voltage
All relays 1 Vdc
Input Resistance (Typical)
SD24 1000 Ohms
SD48D40-06 1000 Ohms
SD48D50A 1400 Ohms
SD48D50A2 1800 Ohms
Reverse Voltage Protection
All relays 30 V
BLOCK DIAGRAM
+
+
output
i
nput
i
nput
output
L1
T1
L2
T2
1
2
–
–
Figure 1b — SD48D40-06
+
–
–
+
outputinput
input output
L1
T1
L2
T2
1
2
Figure 1a — All SD relays except SD48D40-06
FEATURES/BENEFITS
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 include motor control, heating
control, uninterruptible power supplies, light dimmers, industrial and process control,
and on/o controls of AC equipment. UL recognized. UL File Number: E1285555.
• 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
SD 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2011 TELEDYNE RELAYS
SD\122011\Q4
Series SD
Dual Output to 50A 600 Vac
DC Control Solid-State Relay
MECHANICAL SPECIFICATION
Figure 2a — SD24R50-06, and SD24D50-06;
dimensions in inches (mm)
.21
(5.2) 1.87 (47.6)
2.28 (58)
0.9 (29.2)
1.75 (44.5)
L1 L2
T1 T2
Ø .19 (4.7)
1.4 (35.8)
.18
(4.57)
0.3 (7.62)
.44
(11.1)
–
+2
1–
+
1.26 (32)
.39
(10)
.25x.03
(6.3x0.8)
WEIGHT: 3.88 oz. (110g)
.21
(5.2) 1.87 (47.6)
2.28 (58)
1.67 (42.5)
.32
(8)
.3 (7.62)
.31
(7.75)
.88 (22.4)
.77 (19.6)
1.06 (27)
1.1 (28)
1.75 (44.5)
.39
(10)
Ø .19 (4.7) M 4
WEIGHT: 3.88 oz. (110g)
L1 L2
T1 T2
–
+2
1–
+
.88 (22.4)
.77 (19.6)
1.06 (27)
.88 (22.4)
.77 (19.6)
1.06 (27)
.63 (16) max .63 (16) max
.4 (10.2)
.4 (10.2)
50A
400Vac
(24-600Vac)
400Vac
(24-600Vac)
T2
L2
Input
10-30
Vdc
+
50A
T1
L1
.2 (5.2) 1.87 (47.6)
2.28 (58)
1.1 (28)
1.75 (44.5)
Ø.19 (4.7) M4
1.67 (42.5)
==
.31 (7.75)
–
WEIGHT: 3.88 oz. (110g)
TOLERANCES:
1.26 (32)
.77 (19.6)
1.2 (30)
.024x.024
(0.6x0.6)
1~ 2~
4- 3+
1.1 (28)
Ø .19 (4.7)
1.87 (47.6)
.20 (5.1)
1.0 (25.4)
1.75 (44.5)
2.28 (58)
±
.012
.25 (6.3)
.35
(8.8)
.5 (12.7)
.83 (21)
WEIGHT: 3.88 oz. (110g)
21
+–+–
.88 (22.4)
.77 (19.6)
1.06 (27)
.88 (22.4)
.77 (19.6)
1.06 (27)
.63 (16) max .63 (16) max
.8 (20.4)
.8 (20.4)
WEIGHT: 3.88 oz. (110g)
.2 (5.2) 1.87 (47.6)
2.28 (58)
1.1 (28)
1.75 (44.5)
Ø.19 (4.7) M4
1.67 (42.5)
.31 (7.75)
==
400Vac
50A
(24-600Vac)
T2
L2
T1
L1
50A
400Vac
+
+
II
1
2
(24-600Vac)
Input 10-30 Vdc
Figure 2b — SD24R50; dimensions in inches (mm)
Figure 2d — SD48D50A; dimensions in inches (mm)
Figure 2c — SD48D40-06, SD24D40-06 and SD24R40-06;
dimensions in inches (mm)
Figure 2e — SD48D50A2; dimensions in inches (mm)
Figure 3 — SD48D50A
TYPICAL APPLICATION
© 2011 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com SD 3
SD\122011\Q4
Series SD
Dual Output to 50A 600 Vac
DC Control Solid-State Relay
CONTROL CHARACTERISTICS
Figure 4a — SD24 and SD48D40-06 relays
Control Voltage (V)
Input Currrent (mA)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
0
2 4 6 8 10 12 14 16 18 20 22 24 26 28 300
Figure 4b — SD48D50A relay
Control Voltage (V)
Input Current (mA)
2
4
6
8
10
12
14
16
18
20
0
5 1015202530350
OUTPUT (LOAD) SPECIFICATION
Input Type Min Max Units
Operating Range
SD24 R/D 12 280 Vrms
SD48D40-06 24 510 Vrms
SD48D50XX 24 600 Vrms
Peak Voltage
SD24 600 Vpeak
SD48 1200 Vpeak
Load Current Range (Resistive)
SD24D40-06, SD24R40-06 & SD48D40-06
.005 40 Arms
All other relays .005 50 Arms
Maximum Surge Current Rating (Non-Repetitive)
SD24D40-06, SD24R40-06, & SD48D40-06
350 A
All other relays 550 A
On-State Voltage Drop
All relays output current 1.6 V
Zero-Cross Window
SD R NA
SD D/A ±12 Vac
O -State Leakage Current (60Hz)
SD48D40-06 2.5 mA
All other relays 1 mA
Turn-On Time (60 Hz)
SD24 R 0.1 ms
All other relays 8.3 ms
Turn-O Time (60 Hz)
All relays 8.3 ms
SD24R40-06 10 ms
OUTPUT (LOAD) SPECIFICATION (Continued)
Input Type Min Max Units
O -State dv/dt
All relays 500 V/μs
Maximum di/dt (Non-Repetitive)
All relays 50 A/μs
Operating Frequency Range
All relays 10 440 Hz
I2t for Match Fusing (<8.3ms)
SD24D40-06, SD24R40-06 & SD48D40-06
612 A2S
All other relays 1500 A2S
SD 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2011 TELEDYNE RELAYS
SD\122011\Q4
Series SD
Dual Output to 50A 600 Vac
DC Control Solid-State Relay
SURGE CURRENT
Figure 5a — SD24 50A output current
Figure 5b — SD48 40A and SD24 40A output current
Figure 5c — SD48 50A output current
ENVIRONMENTAL SPECIFICATION
Min Max Units
Operating Temperature –40 100 °C
Storage Temperature –40 100 °C
Input-Output Isolation
SD24D40-06, SD24R40-06 & SD48D40-06
4000 Vrms
All other relays 3300 Vrms
Output-Case Isolation
SD24D40-06, SD24R40-06 & SD48D40-06
2500 Vrms
All other relays 3300 Vrms
Output to Output
SD48D50XX 3300 Vrms
All other relays 2500 Vrms
Junction-Case Thermal Resistance
SD24D40-06, SD24R40-06 & SD48D40-06
1.1 °C/W
All other relays 0.5 °C/W
1100.10.01
0
200
400
600
Apeak
Non-Repetitive
t (s)
Repetitive with initial Tj = 70°C
100
200
300
400
Apeak
Non-Repetitive
1100.10.01
0
t (s)
Repetitive with initial Tj = 70°C
1010.10.01
0
200
400
600
t (s)
Apeak
Non-Repetitive
Repetitive with initial Tj = 70°C
NOTES:
1. Electrical speci cations at 25°C unless otherwise speci ed.
2. For 800Hz applications, contact factory.
3. For additional/custom applications, contact factory.
Figure 4c — SD48D50A2 relay
Control Voltage (V)
Input Current (mA)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
051015202530350
For each input
© 2011 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com SD 5
SD\122011\Q4
Series SD
Dual Output to 50A 600 Vac
DC Control Solid-State Relay
THERMAL CHARACTERISTICS
Figure 6a — SD24 50A relays output current
Figure 6b — SD48 40A and SD24 40A output current
Figure 6c— SD48D50A and SD48D50A2 output current
0 10 20 30 40 50 60 70 80 90 100 110
90°C
110
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 4035 45
0
Power Dissipation (W)
2 pole
1 pole
120
130
140
150
Max Case Temperature (°C)
Load Current (Arms) Ambient Temperature (°C)
Without heat sink
4°C/W
2.6°C/W
2°C/W
1.6°C/W
1.35°C/W
1.2°C/W
0.9°C/W
0.75°C/W
0.55°C/W
0.4°C/W
0.2°C/W
0°C/W
Power Dissipation (W)
Ambient Temperature (°C)Load Current (Arms)
125
0
5
0 5 10 15 20 25 30 35 40
10
15
20
25
30
35
40
45
50
55
60
0 10 20 30 40 50 60 70 80 90 100 110 120
1.2°C/W
1.6°C/W
2°C/W
Without heat sink
0°C/W
0.2°C/W
0.55°C/W
0.75°C/W
0.9°C/W
2.3°C/W
2.6°C/W
4°C/W
1.35°C/W
1°C/W
0.3°C/W
1 pole
2 pole
0
20
40
60
80
100
120
140
160
0 5 10 15 20 25 30 35 40 45 50 0 10 20 30 40 50 60 70 80 90 100
Load Current (Arms) Ambient Temperature (°C)
Power Dissipation (W)
6°C/W
2.2°C/W
1.6°C/W
0.95°C/W
0.75°C/W
0.3°C/W
2 pole
1 pole
OPTIONAL ADD-ONS
Please order add-ons separately:
• -12 — Thermal pad installed.
• -14 — Plastic touch-proof cover.