
C
W
48
10-125
•
1200V Blocking
•
Low Leakage
•
SCR Output
•
Zero and Random
Voltage Switching
•
LED Status Indicator
• Panel Mount
•
Intergrated Removable
Fingerproof Cover
• User Friendly, Universal
Connectors
• EMC Compliant Design
MODEL NUMBERS CWD4810 CWD4825 CWD4850
➀
OUTPUT SPECIFICATIONS
Operating Voltage (47-63 Hz) [Vrms] 48-660 48-660 48-660
Load Current Range [Arms] 0.15-10 0.15-25 0.15-50
Transient Overvoltage [Vpk] 1200 1200 1200
Max. Surge Current (16.6ms) [Apk] 400 600 850
Max. Surge Current (20ms) [Apk] 380 570 810
Max. On-State Voltage Drop @ Rated Current [Vpk] 1.3 1.3 1.3
Thermal Resistance Junction to Case (R ) [˚C/W]
Maximum I2 t for Fusing, (8.3 ms) [A2s]
Maximum I2 t for Fusing, (10 ms) [A2s]
Max. Off-State Leakage Current @ Rated Voltage [mA] 1.0 1.0 1.0
Min. Off-State dv/dt @ Max. Rated Voltage [V/µs] 500 500 500
Max. Turn-On Time 1/2 Cycle 1/2 Cycle 1/2 Cycle
Max. Turn-Off Time 1/2 Cycle 1/2 Cycle 1/2 Cycle
Power Factor (Min.) with Max. Load 0.5 0.5 0.5
➂
➃
➄
➄
INPUT SPECIFICATIONS
Control Voltage Range 4-32 Vdc
Max. Turn-On Voltage 4 Vdc
Min. Turn-Off Voltage 1.0 Vdc
Nominal Input Impedence See note 7
Typical Input Current 10 mA @ 12 Vdc
GENERAL NOTES
All parameters at 25˚C unless otherwise specified.
➀
Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
➁
Heat sinking required, for derating curves see page 2.
➂
Turn-on time for random turn-on version is 0.02 msec.
➃
Turn-on and turn-off time for AC input models is 50ms.
➄
10mA for models with snubber.
➅
Input circuit incorporates active current limiter.
➆
48-530 Vrms for models with snubber.
➇
SERIES CW48
Rev. 081803
PAGE 1 OF 3
➇
θJC
➁
➀
CWA4810
0.35 0.35 0.2
660
720
➅
DC Control
CWA4825 CWA4850
1500 3000
1620
AC Control
24 Vac nominal
E - suffix
18-36 Vrms
18 Vrms
1 k ohm
24mA@24Vrms
© 2003 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
The Series CW48 has an SCR AC switch
output featuring low off-state leakage
(1mA, snubberless), zero and random
voltage switching and a broadened
operating range (48-660Vac).
This wide range permits optimum
perfomance at voltages from 240 Vac to
600 Vac line voltages.
Manufactured in Crydom's ISO 9001
Certified facility for optimum product
performance and reliability.
3280
2 Vrms
A
m
p
-
600
Vac - AC OUTPU
CWD4890 CWD48125
CWA4890
48-660 48-660
0.25-90 0.25-125
1200 1200
1350 2000
1290
1.3 1.25
0.14 0.13
7560
8320 18000
1.0 1.0
500 500
1/2 Cycle 1/2 Cycle
1/2 Cycle 1/2 Cycle
0.5 0.5
AC Control
120/240Vac nominal
Std. (no suffix)
90-280 Vrms
90 Vrms
10 Vrms
21.5 k ohms
6 mA @ 120 Vrms
T
CWA48125
1900
16600

C
W
48
Available Options
-10 Random Turn-On.
Example: CWD4825-10
E 24 Vac Input (18-36 Vac)
Example: CWA4825E
P Internal Overvoltage Protection.
Relay Will Self Trigger Between
900-1200 Vpk. Not Suitable For Capacitive Loads.
Example: CWD4825P
S Internal Snubber Example: CWD4825S
H Heat Trasfer Pad (Attached)
Example: CWD4825H
Crydom Heat Sinks offer excellent ther-
mal management and are perfectly
matched to the load current ratings of
Crydom panel mount relays. Request
Crydom's Heat Sink specification sheet
for all the details.
10-125
A
m
p
-
600
Vac - AC OUTPU
GENERAL SPECIFICATIONS
Dielectric Strength 50/60Hz Input/Output/Base
Insulation Resistance (Min.) @ 500 Vdc 10
Max. Capacitance Input/Output
Ambient Operating Temperature Range
4000 Vrms
9
Ohm
8 pF
-40 to 80˚C
Ambient Storage Temperature Range -40 to 125˚C
MECHANICAL SPECIFICATIONS
Weight: (typical)
3.0 oz. (86.5g)
Encapsulation Thermally Conductive Epoxy
Terminals Screw Type, Finger Proof
Output: 8-32, Combo Drive
Input: 6-32, Combo Drive
Max. Torque
Output: 20 in lb (2.2Nm)
Input: 10 in lb (1.1Nm)
Max. Wire Size
Output: 2 x AWG 8 (3.8mm)
Input: 2 x AWG 12 (2.5mm)
MECHANICAL OUTLINE
1.10
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
1.87
(47.5)
BASE PLATE
.125 (3.2)
(27.9)
.45
(11.4)
OUTPUT
1/L1 2/T1
4/A2
INPUT
1.00
(25.4)
1.
45.7
+
3/A1
1.70
(43.2)
2.30
(58.4)
1.30
(33.0)
T
EMC Compatibility
Input: EN61000-4-2, Level 3
EN61000-4-4, Level 3
Output:
EN61000-4-2, Level 3
Level 4
EN61000-4-4, Level 3
Level 4
EN61000-4-5, Level 4
APPROVALS
UL E116949
CSA 1405925
VDE 40007242
SERIES CW48
Rev. 081803
PAGE 2 OF 3
ESD
Burst
ESD
ESD (with P option)
Burst
Burst (with P option)
Surge
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
All dimensions are in inches (millimeters)
© 2003 CRYDOM CORP, Specifications subject to change without notice.

C
W
48
10A
10
8
6
4
Power Dissipation
2
0
24 8106 20406080
Load Current [Arms] Max Ambient Temp. [˚C]
100
Power Dissipation
7˚C/W
121
123
Base Plate Temp [˚C]
120
Power Dissipation
9˚C/W
90A
80
60
40
20
0
20 40 80 060 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
CURRENT DERATING CURVES
25A
25
20
15
10
5
0
510 202515 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
.4˚C/W
112
.5˚C/W
1˚C/W
115
118
Base Plate Temp [˚C]
121
124
Power Dissipation
4˚C/W
130
120
100
80
60
40
20
0
2˚C/W
3˚C/W
30 60 120 090 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
10-125
116
120
Base Plate Temp [˚C]
123
125A
A
m
p
-
600
Vac - AC OUTPU
50A
50
40
30
20
Power Dissipation
10
0
10 20 40 5030 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
109
.4˚C/W
112
.5˚C/W
1˚C/W
115
117
120
Base Plate Temp [˚C]
122
2˚C/W
.1˚C/W
1.5˚C/W
T
115
117
119
121
123
Base Plate Temp [˚C]
SERIES CW48
Rev. 081803
PAGE 3 OF 3
© 2003 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
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
WEB SITE: http://www.crydom.com