Series A48, Series D48
12-90Amp • 480 V ac• AC Output
• Zero Voltage and Random
Turn-On Switching
• Panel Mount
• 800V Transient Capability
• Internal Snubber
Featuring state-of-the-art Surface
Mount Technology, these SPST-NO
relays deliver proven reliability in the
most demanding applications.
Output consists of an SCR AC switch
and is available in zero-cross, random
turn-on (phase controllable) and ver-
sions with either AC or DC input (coil)
control.
Manufactured in Crydom’s ISO 9001
Certified facility for optimum product
performance and reliability.
A4850
D4850
A4875
D4875
A4890
D4890
MODEL NUMBERS
AC CONTROL
D C CONTROL
A4812
D4812
A4825
D4825
OUTPUT SPECIFICATIONS
➀
Operating Voltage (47-63 Hz) [Vrms]
Max. Load Current
80-530
12
40
800
140
1.7
1.48
81
10
500
80-530
25
40
800
250
1.7
1.02
260
10
500
80-530
50
40
800
625
1.7
0.63
1620
10
500
80-530
75
40
800
1000
1.7
0.31
4150
10
500
80-530
90
40
800
1200
1.7
0.28
6000
10
500
➂
[Arms]
Min. Load Current, [mArms]
Transient Overvoltage [Vpk]
Max. Surge Current, (16.6ms) [Apk]
Max. On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (R
θJC
[˚C/W]
)
Maximum I 2 t for Fusing, (8.3 msec.) [A 2sec]
Max. Off-State Leakage Current @ Rated Voltage [mArms]
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec]
Max. Turn-On Time
➃
Max. Turn-Off Time
Power Factor (Min.) with Max. Load
➁
1/2 Cycle (DC Input), 10.0 msec (AC Input)
1/2 Cycle (DC Input), 40.0 msec (AC Input)
0.5
0.5
0.5
0.5
0.5
INPUT SPECIFICATIONS
➀
Control Voltage Range
Max. Reverse Voltage
Max. Turn-On Voltage
Min. Turn-Off Voltage
Nominal Input Impedance
Typical Input Current
DC CONTROL
(D PREFIX)
AC CONTROL
(A PREFIX)
3-32 Vdc
-32 Vdc
3.0 Vdc
1.0 Vdc
See Note
➄
2.0 mA
➄
90-280 Vrms (60Hz)
---
90 Vrms
10 Vrms
60K Ohms
2mA @ 120 Vrms, 4mA @ 240 Vrms
© 2001 CRYDOM CORP, Specifications subject to change without notice.
GENERAL NOTES
➀
➁
➂
➃
➄
All parameters at 25˚C unless otherwise specified.
Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
Heat sinking required, for derating curves see page 2.
Turn-on time for random turn-on versions
is 0.02 msec (DC Control Models).
Input circuitry incorporates active current limiter.
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
FastFax Document No.
SERIES A48/D48.
Rev. 011602
PAGE 1 OF 3
Series A48, Series D48
12-90Amp • 480 V ac• AC Output
GENERAL SPECIFICATIONS
Dielectric Strength 50/60Hz Input/Output/Base
Insulation Resistance (Min.) @ 500 Vdc
Max. Capacitance Input/Output
Ambient Operating Temperature Range
Ambient Storage Temperature Range
MECHANICAL SPECIFICATIONS
Weight: (typical)
Encapsulation:
Terminals:
AVAILABLE OPTIONS
-10
Random Turn-On (AC & DC Control)
Phase Controllable (DC Control)
Example:
D4890-10
Faston Terminals (Up to 25 Amp Models)
Example:
D4850F
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
4000 Vrms
10
9
Ohm
8 pF
-40 to 80˚C
-40 to 125˚C
3.0 oz. (86.5g)
Thermally Conductive Epoxy
Screws and Saddle Clamps Furnished, Unmounted
1.10
(27.9)
.45
(11.4)
8-32 TERMINAL
(2 PLACES )
1
OUTPUT
2
F
1.87
(47.5)
SOLID-STATE RELAY
--
4
INPUT
+
3
2.30
(58.4)
1.70
(43.2)
Screw Torque Requirements:
6-32 Screws - 10 in. lbs.,
8-32 and 10-32 Screws - 20in. lbs.
(Screws dry without grease.)
BASE PLATE
.125 (3.2)
1.00
(25.4)
1.80
(45.7)
6-32 TERMINAL
(2 PLACES)
.78
(19.8)
.90
(22.9)
Fastons:
Single pair (up to 25A)
Double pair* (up to 50A).
*Caution: User must connect to both pairs
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
1.10
(27.9)
.45
(11.4)
FASTON TERMINAL
.250 X .032 (2 PLCS.)
.87 REF.
(22.2)
Crydom Heat Sinks
offer excellent
thermal management and are per-
fectly matched to the load current
ratings of Crydom panel mount
relays. Request Crydom’s Heat Sink
specification sheet for all the details.
1
1.87
(47.5)
OUTPUT
2
2.30
(58.4)
1.70
(43.2)
SOLID-STATE RELAY
--
4
INPUT
+
3
BASE PLATE
.125 (3.2)
1.00
(25.4)
1.80
(45.7)
FASTON
TERMINAL
.187 X .032
(2 PLCS.)
.78
(19.8)
.90
(22.9)
All dimensions are in inches (millimeters)
APPROVALS
UL E116949
CSA LR81689
VDE 10143 UG
FastFax Document No.
SERIES A48/D48
Rev. 011602
PAGE 2 OF 3
© 2001 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
Series A48, Series D48
12-90Amp • 480 V ac• AC Output
CURRENT DERATING CURVES
12A
14
12
7˚C/W
3˚C/W
25A
30
1˚C/W
95
Base Plate Temp [˚C]
Base Plate Temp [˚C]
9˚C/W
5˚C/W
Base Plate Temp [˚C]
10
Power Dissipation
110
25
Power Dissipation
3˚C/W
2˚C/W
100
8
6
4
120
2
0
0
2
4
6
8
10
12
20
40
60
80
NO HEATSINK
20
15
10
NO HEATSINK
115
110
5
0
5
10
15
20
25
20
40
60
80
Load Current [Arms]
Max Ambient Temp. [˚C]
Load Current [Arms]
Max Ambient Temp. [˚C]
120
50A
60
1˚C/W
1.5˚C/W
.5˚C/W
75A
120
90
Base Plate Temp [˚C]
Base Plate Temp [˚C]
90A
120
.5˚C/W
.2˚C/W
.4˚C/W
90
95
Power Dissipation
.5˚C/W
.3˚C/W
Power Dissipation
40
2˚C/W
100
80
1˚C/W
100
Power Dissipation
80
1ºC/W
100
20
NO HEATSINK
110
110
40
120
0
110
40
120
0
20
40
60
80
0
20
40
60
80
120
80
15
30
45
60
75
20
40
60
80
0
10
20
30
40
50
20
40
60
Load Current [Arms]
Max Ambient Temp. [˚C]
Load Current [Arms]
Max Ambient Temp. [˚C]
Load Current [Arms]
Max Ambient Temp. [˚C]
© 2001 CRYDOM CORP, Specifications subject to change without notice.
FastFax Document No.
SERIES A48/D48.
Rev. 011602
PAGE 3 OF 3
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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