120 & 240 Vac Models
Models SST120 and SST240 auxiliary
function modules gradually apply
power to the load when energized by
the control voltage. They must be used
with Crydom Series 1 (-10) random
turn-on solid state relays. Consult fac-
FastFax Document No. 202
SERIES SST
Rev. 051702
PAGE 1 OF 2
tory about use with 480 Vac loads. For
a complete set (control module and
solid state relay) order 10SST120,
25SST120, etc.
Manufactured in Crydom's ISO 9002
Certified facility for optimum product
performance and reliability.
Series SST
SOFT-START Modules 10-90 Amp AC Output
M O D E L N U M B E R S
120 Vac
10SST120
25SST120
40SST120
240 Vac
10SST240
25SST240
50SST240
75SST240
90SST240
RELAY OUTPUT SPECIFICATIONS
Operating Voltage Range (47-63 Hz) [Vrms]
90-140 (120 Vac Models)
180-280 (240 Vac Models)
Load Current Range
[Arms]
.04-10
.04-25
.04-50
.04-75
.04-90
Transient Overvoltage [Vpk]
400 (120 Vac models)
600 (240 Vac models)
Max. Surge Current, (16.6ms) [Apk]
120
250
625
1000
1200
Max. On-State Voltage Drop @ Rated Current [Vpk]
1.6
1.6
1.6
1.6
1.6
Thermal Resistance Junction to Case (R
JC) [C/W]
1.48
1.02
.63
.31
.28
Maximum I2 t for Fusing, (8.3 msec.) [A2sec]
60
260
1620
4150
6000
Max. Off-State Leakage Current @ Rated Voltage [mArms]
10.0
10.0
10.0
10.0
10.0
Min. Off-State dv/dt @ Max. Rated Voltage [V/sec]
500
500
500
500
500
Max. Turn-Off Time
1/2
cycle
1/2
cycle
1/2
cycle
1/2
cycle
1/2
cycle
Power Factor (Min.) with Max. Load
0.5
0.5
0.5
0.5
0.5
CONTROL M ODULE INPUT SPECIFICATIONS
(
Terminal 3B
)
DC CONTROL
Control Voltage Range
3.5-10Vdc
Max. Turn-On Voltage
3.5 Vdc
Min. Turn-Off Voltage
1.0 Vdc
Typical Input Current
1.6mA @ 5Vdc
Nominal Turn-On Delay Time @ 60Hz
150 msec
Nominal Swell (Ramp) Time @ 60Hz
180 msec
Max. Reset Time
100
sec
CONTROL M ODULE OUTPUT SPECIFICATIONS
(
Terminal 4B-Input to relay
)
DC CONTROL
Max. Off-State Operating Voltage
36 Vdc
Max. Load Current (Sink)
3.0 mAdc
Max. On-State Voltage @ 3mA
0.5 Vdc
Max. Off-State Leakage @ 10Vdc
1.0
Adc
GENERAL NOTES
All parameters at 25C unless otherwise specified.
Off-State dv/dt test method per EIA/NARM standard
RS-443, paragraph 13.11.1
Heat sinking required (Relay Only),
see Series 1 data sheet.
2002 CRYDOM CORP, Specifications subject to change without notice.
For recommended applications and more information contact:
USA: Sales Support (877) 502-5500 Tech Support (877) 702-7700 FAX (619) 710-8540
Crydom Corp, 2320 Paseo de las Americas, Ste. 201, San Diego, CA 92154
Email: sales@crydom.com WEB SITE: http://www.crydom.com
UK: +44 (0)1202 365070 FAX +44 (0)1202 365090 Crydom International Ltd., 7 Cobham
Road, Ferndown Industrial Estate, Ferndown, Dorset BH21 7PE, Email: intsales@crydom.com.
GERMANY: +49 (0)180 3000 506
GENERAL SPECIFICATIONS
Dielectric Strength, Signal to Load
4000 Vrms
Dielectric Strength, Signal to Base
4000 Vrms
Ambient Operating Temperature Range
-30 to 80C
Ambient Storage Temperature Range
-40 to 125C
M ECHANICAL SPECIFICATIONS
Weight: (typical)
3.0 oz. (43g)
Encapsulation:
Thermally Conductive Epoxy
All dimensions are in inches (millimeters)
Series SST
SOFT-START Modules 10-90 Amp AC Output
DERATING CURVES
See Series 1
W I R I N G D I A G R A M
Control
Voltage (+)
Gnd ()
Line
Load
Notes
1. Following pins may be interchanged: 1A & 1B, 2A & 2B, 3A & 3B.
2. Pin 4A & 4B may not be interchanged.
3. The line and load may be interchanged.
10 RELAY
1
2
4
3
SOFT-START
MODULE
1A 1B
2B 2A
4A 4B
3B 3A
OUTPUT
INPUT
OUTPUT
INPUT
+
--
--
+
AVAILABLE OPTIONS
SST120
Control Module Only (120 Vac line)
SST240
Control Module Only (240 Vac line)
FastFax Document No. 202
SERIES SST
Rev. 051702
PAGE 2 OF 2
APPROVALS
UL
E116949
2002 CRYDOM CORP, Specifications subject to change without notice.
For recommended applications and more information contact:
USA: Sales Support (877) 502-5500 Tech Support (877) 702-7700 FAX (619) 710-8540
Crydom Corp, 2320 Paseo de las Americas, Ste. 201, San Diego, CA 92154
Email: sales@crydom.com WEB SITE: http://www.crydom.com
UK: +44 (0)1202 365070 FAX +44 (0)1202 365090 Crydom International Ltd., 7 Cobham
Road, Ferndown Industrial Estate, Ferndown, Dorset BH21 7PE, Email: intsales@crydom.com.
GERMANY: +49 (0)180 3000 506
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