© 2016 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com SD Page 1
SD\092016\Q3
Series SD
Dual Ouput to 50A 600 Vac
DC Control Solid-State Relay
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 include motor control, heating
control, uninterruptible power supplies, light dimmers,
industrial and process control, and on/off controls of
AC equipment.
APPROVALS
All models are UL recognized.
UL File Number: E128555.
SD R50
48 -06
SeriesLine Voltage
1
Output Current - Amps
Switch Type
2
Feature
3
+
–
–
+
outputinput
input output
L1
T1
L2
T2
1
2
BLOCK DIAGRAM
Figure 1a — All SD relays
INPUT (CONTROL) SPECIFICATION
Min Max Units
Control Range
SD24 4 30 Vdc
SD48 5 30 Vdc
SD48D50XX 10 30 Vdc
Input Current Range 3 mA
Must Turn-Off Voltage 1 Vdc
Input Resistance (Typical)
SD24 1000 Ohms
SD48 1000 Ohms
SD48D50A 1400 Ohms
SD48D50A2 1800 Ohms
Reverse Voltage Protection 30 V
Part Number Description
SD24R50 12-280 Vac
SD24D40-06 12-280 Vac
SD24D50-06 12-280 Vac
SD48D40-06 12-280 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
For RoHS compliant contact factory
SD Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2016 TELEDYNE RELAYS
SD\092016\Q3
Series SD
Dual Ouput to 50A 600 Vac
DC Control Solid-State Relay
MECHANICAL SPECIFICATION
Figure 2a — 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 — SD24D40-06;
dimensions in inches (mm)
Figure 2e — SD48D50A2; dimensions in inches (mm)
Figure 3 — SD48D50A
TYPICAL APPLICATION
© 2016 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com SD Page 3
SD\092016\Q3
Series SD
Dual Ouput to 50A 600 Vac
DC Control Solid-State Relay
CONTROL CHARACTERISTICS
Figure 4a — SD24
Figure 4b — SD48D50A relay
Figure 4c — SD48D50A2 relay
Control Voltage (V)
Input Currrent (mA)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
02 4 6 8 10 12 14 16 18 20 22 24 26 28 300
Control Voltage (V)
Input Current (mA)
2
4
6
8
10
12
14
16
18
20
05 1015202530350
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
OUTPUT (LOAD) SPECIFICATION
Input Type Min Max Units
Operating Range
SD24 R/D 12 280 Vrms
SD48 24 510 Vrms
SD48D50XX 24 600 Vrms
Peak Voltage
SD24 600 Vpeak
SD48 1200 Vpeak
Load Current Range (Resistive)
SD24D40-06 .005 40 Arms
All other relays .005 50 Arms
Maximum Surge Current Rating (Non-Repetitive)
SD24D40-06 350 A
All other relays 550 A
On-State Voltage Drop 1.6 V
Zero-Cross Window
SD R NA
SD D/A ±12 Vac
Off-State Leakage Current (60Hz) 2.5 mA
Turn-On Time (60 Hz)
SD24 R 0.1 ms
All other relays 8.3 ms
Turn-Off Time (60 Hz) 8.3 ms
Off-State dv/dt 500 V/μs
Maximum di/dt (Non-Repetitive) 50 A/μs
Operating Frequency Range 10 440 Hz
I2t for Match Fusing (<8.3ms)
SD24D40-06 612 A2S
All other relays 1500 A2S
SD Page 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2016 TELEDYNE RELAYS
SD\092016\Q3
Series SD
Dual Ouput 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 4000 Vrms
All other relays 3300 Vrms
Output-Case Isolation
SD24D40-06 2500 Vrms
All other relays 3300 Vrms
Output to Output
SD48D50XX 3300 Vrms
All other relays 2500 Vrms
Junction-Case Thermal Resistance
SD24D40-06 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
THERMAL CHARACTERISTICS
Figure 6a — SD24 50A relays output current
Figure 6b — SD24D40-06 and SD48D40-06 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 102030405060708090100110120
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
NOTES:
1. Electrical specifi cations at 25°C unless otherwise specifi ed.
2. For 800Hz applications, contact factory.
3. For additional/custom applications, contact factory.
OPTIONAL ADD-ONS
Please order add-ons separately:
• -12 — Thermal pad installed.
• -14 — Plastic touch-proof cover.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Teledyne Relays:
SD24D40-06 SD24D50-06 SD24R50 SD24R50-06 SD48D40 SD48D40-06 SD48D50A SD48D50A-12