MODEL NUMBERS AC CONTROL HA4812 HA4825 HA4850 HA4875 HA4890
DC C ONTROL HD4812 HD4825 HD4850 HD4875 HD4890
OUTPUT SPECIFICATIONS
Operating Voltage (47-63 Hz) [Vrms] 48-530 48-530 48-530 48-530 48-530
Max. Load Current [Arms] 12 25 50 75 90
Min. Load Current, [mArms] 40 40 40 40 40
Transient Overvoltage [Vpk] 1200 1200 1200 1200 1200
Max. Surge Current, (16.6ms) [Apk] 140 250 625 1000 1200
Max. On-State Voltage Drop @ Rated Current [Vpk] 1.7 1.7 1.7 1.7 1.7
Thermal Resistance Junction to Case (RθJC) [˚C/W] 1.48 1.02 0.63 0.31 0.28
Maximum I2 t for Fusing, (8.3 msec.) [A2sec] 81 260 1620 4150 6000
Max. Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10 10
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec]500 500 500 500 500
Max. Turn-On Time1/2 Cycle (DC Input), 10.0 msec (AC Input)
Max. Turn-Off Time 1/2 Cycle (DC Input), 40.0 msec (AC Input)
Power Factor (Min.) with Max. Load 0.5 0.5 0.5 0.5 0.5
INPUT SPECIFICATIONS DC CONTROL AC CONTROL AC CONTROL
(D PREFIX) (A PREFIX)(E SUFFIX)
Control Voltage Range 3-32 Vdc 90-280 Vrms (60Hz) 18-36 Vrms
Max. Reverse Voltage -32 Vdc --- ---
Max. Turn-On Voltage 3.0 Vdc 90 Vrms 18 Vrms
Min. Turn-Off Voltage 1.0 Vdc 10 Vrms 4.0 Vrms
Nominal Input Impedance See Note60K Ohms 9.0K Ohms
Typical Input Current 2.0 mA2mA @ 120 Vrms, 4mA @ 240 Vrms 3mA @ 24 Vrms
GENERAL NOTES
All parameters at 25ºC 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.
24 Vac Input option, E suffix.
Turn-on time for random turn-on versions
is 0.02 msec (DC Control Models).
Input circuitry incorporates active current limiter.
Zero Voltage and Random
Turn-On Switching
Panel Mount
1200V Blocking Capability
FastFax Document No. 158
SERIES HA/HD.032698, PAGE 1 OF 3
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 9002
Certified facility for optimum product
performance and reliability.
Series HA, Series HD
12-90Amp • 480 Vac• AC Output
©1998 CRYDOM CORP, Specifications subject to change without notice.
For recommended applications and more information contact:
USA: (800) 8 CRYDOM (800) 827-9366 • (619) 715-7200 • fax (619) 715-7280
Crydom Corp, 9525 Chesapeake Drive, San Diego, CA 92123 • e-mail: sales@crydom.com
WEB SITE: http://www.crydom.com FASTFAX Product Information: (888) 267-9191
UK: (44)1202 812300 fax (44)1202 812340 Crydom International Ltd., 85, Condor Close,
Woolsbridge Industrial Estate, Three-Legged Cross. Wimborne, Dorset, England BH21 6SU
GERMANY: (49) (0)6874 182580 fax (49)(0)6874 182585 Crydom GmbH,
Gewerbegebiet Im Schachen, D-66687 Nunkirchen, Germany • e-mail: vertrieb@crydom.com
AVAILABLE OPTIONS
E24 VAC Input (18-36 Vac)
Example: HA4825E
-10 Random Turn-On (AC & DC Control)
Phase Controllable (DC Control)
Example: HD4890-10
FFaston Terminals (Up to 50 Amp Models)
GENERAL SPECIFICATIONS
Dielectric Strength 50/60Hz Input/Output/Base 4000 Vrms
Insulation Resistance (Min.) @ 500 Vdc 109Ohm
Max. Capacitance Input/Output 8 pF
Ambient Operating Temperature Range -40 to 80ºC
Ambient Storage Temperature Range -40 to 125ºC
MECHANICAL SPECIFICATIONS
Weight: (typical) 3.0 oz. (86.5g)
Encapsulation: Thermally Conductive Epoxy
Terminals: Screws and Saddle Clamps Furnished, Unmounted
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.
FastFax Document No. 158
SERIES HA/HD.032698, PAGE 2 OF 3
Series HA, Series HD
12-90Amp • 480 Vac• AC Output
©1998 CRYDOM CORP, Specifications subject to change without notice.
APPROVALS
UL E116949
CSA LR81689
VDE 10143 UG
Screw Torque Requirements:
6-32 Screws - 10 in./lbs.,
8-32 and 10-32 Screws - 20in./lbs.
(Screws dry without grease.)
Fastons:
Single pair (up to 25A)
Double pair* (up to 50A).
*Caution: User must connect to both pairs
1.87
(47.5)
.78
(19.8)
2.30
(58.4)
1.70
(43.2)
.90
(22.9)
.45
(11.4)
1.10
(27.9) 8-32 TERMINAL
(2 PLACES )
1.00
(25.4) 6-32 TERMINAL
(2 PLACES)
1.80
(45.7)
SOLID-STATE RELAY
12
OUTPUT
34 +-- INPUT
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
BASE PLATE
.125 (3.2)
.90
(22.9)
FASTON
TERMINAL
.187 X .032
(2 PLCS.)
BASE PLATE
.125 (3.2)
FASTON TERMINAL
.250 X .032 (2 PLCS.)
1.87
(47.5)
.78
(19.8)
2.30
(58.4)
1.70
(43.2)
.87 REF.
(22.2)
12
OUTPUT
43
INPUT
1.00
(25.4)
1.80
(45.7)
.45
(11.4)
1.10
(27.9)
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
All dimensions are in inches (millimeters)
For recommended applications and more information contact:
USA: (800) 8 CRYDOM (800) 827-9366 • (619) 715-7200 • fax (619) 715-7280
Crydom Corp, 9525 Chesapeake Drive, San Diego, CA 92123 • e-mail: sales@crydom.com
WEB SITE: http://www.crydom.com FASTFAX Product Information: (888) 267-9191
UK: (44)1202 812300 fax (44)1202 812340 Crydom International Ltd., 85, Condor Close,
Woolsbridge Industrial Estate, Three-Legged Cross. Wimborne, Dorset, England BH21 6SU
GERMANY: (49) (0)6874 182580 fax (49)(0)6874 182585 Crydom GmbH,
Gewerbegebiet Im Schachen, D-66687 Nunkirchen, Germany • e-mail: vertrieb@crydom.com
12
8
4
02 4 8 126 20 40 60 80
Load Current [Arms] Max Ambient Temp. [ºC]
Power Dissipation
110
115
120
Base Plate Temp [ºC]
12A
9ºC/W 5ºC/W
3ºC/W
7ºC/W
NO HEATSINK
30
20
10
25
15
5
05 10 20 2515 20 40 60 80
Load Current [Arms] Max Ambient Temp. [ºC]
Power Dissipation
95
120
Base Plate Temp [ºC]
25A
1ºC/W 100
110
3ºC/W
NO HEATSINK
60
40
20
010 20 40 5030 20 40 60 80
Load Current [Arms] Max Ambient Temp. [ºC]
Power Dissipation
90
Base Plate Temp [ºC]
50A
2ºC/W
1ºC/W .5ºC/W
100
110
120
1.5ºC/W
NO HEATSINK
120
80
40
015 30 60 7545 20 40 60 80
Load Current [Arms] Max Ambient Temp. [ºC]
Power Dissipation
100
110
120
Base Plate Temp [ºC]
75A
.5ºC/W 95
1ºC/W
120
80
40
020 40 80 060 20 40 60 80
Load Current [Arms] Max Ambient Temp. [ºC]
Power Dissipation
100
110
120
Base Plate Temp [ºC]
90A
1ºC/W
.4ºC/W
.2ºC/W
90
.5ºC/W
2ºC/W
.3ºC/W
2
6
10
14
010
CURRENT DERATING CURVES
FastFax Document No. 158
SERIES HA/HD.032698, PAGE 3 OF 3
Series HA, Series HD
12-90Amp • 480 Vac• AC Output
©1998 CRYDOM CORP, Specifications subject to change without notice.
For recommended applications and more information contact:
USA: (800) 8 CRYDOM (800) 827-9366 • (619) 715-7200 • fax (619) 715-7280
Crydom Corp, 9525 Chesapeake Drive, San Diego, CA 92123 • e-mail: sales@crydom.com
WEB SITE: http://www.crydom.com FASTFAX Product Information: (888) 267-9191
UK: (44)1202 812300 fax (44)1202 812340 Crydom International Ltd., 85, Condor Close,
Woolsbridge Industrial Estate, Three-Legged Cross. Wimborne, Dorset, England BH21 6SU
GERMANY: (49) (0)6874 182580 fax (49)(0)6874 182585 Crydom GmbH,
Gewerbegebiet Im Schachen, D-66687 Nunkirchen, Germany • e-mail: vertrieb@crydom.com