
S
25-90
eries
A
m
p
•
480 Vac - AC OUTPU
H
12
D
T
• 1200 Volt Blocking
• Panel Mount
• Up to 530 Vac
• Zero Voltage and Random
High voltage relays use IC driven circuits for switching loads up to 660
VAC. All models come with 1200
Volts blocking and are available with
either AC or DC input (coil) control.
Turn-On
• SCR Output
• Integrated Overvoltage
Protection by Automatic
Manufactured in Crydom’s ISO 9001
Certified facility for optimum product
performance and reliability.
Self Turn-On (Suffix P)
MODEL NUMBERS
OUTPUT SPECIFICATIONS
Operating Voltage (47-63 Hz) [Vrms] 48-530 48-530 48-530 48-530
Max. Load Current ➂ [Arms] 25 50 75 90
Min. Load Current, [mArms] 150 150 150 150
Transient Overvoltage [Vpk] 1200 1200 1200 1200
Max. Surge Current, (16.6ms) [Apk] 250 625 1000 1200
Max. On-State Voltage Drop @ Rated Current [Vpk] 1.6 1.6 1.6 1.6
Thermal Resistance Junction to Case (RJC) [˚C/W] 1.02 .63 .31 .28
Maximum I2 t for Fusing, (8.3 msec.) [A2sec] 260 1620 4150 6000
Max. Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec] 500 500 500 500
Max. Turn-On Time 1/2 Cycle
Max. Turn-Off Time 1/2 Cycle
Power Factor (Min.) with Max. Load 0.5 0.5 0.5 0.5
➃
➀
➁
H12D4825 H12D4850 H12D4875 H12D4890
1/2 Cycle
1/2 Cycle
1/2 Cycle
1/2 Cycle
1/2 Cycle
1/2 Cycle
INPUT SPECIFICATIONS
Control Voltage Range 4-32Vdc
Max. Turn-On Voltage 4.0 Vdc
Min. Turn-Off Voltage 1.0 Vdc
Nominal Input Impedance See Note 5
Typical Input Current
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 DC control random turn-on versions is 0.02 msec.
➃
Input circuitry incorporates active current limiter.
➄
FastFax Document No.157
SERIES H12D.
Rev. 111203
PAGE 1 OF 3
➀
15 mA @ 5 Vdc
© 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
➄

S
25-90
eries
A
m
p
•
H
12
D
480 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: Screws and Saddle Clamps Furnished, Unmounted
T
Available Options
F Faston Terminals.
(Up to 50 Amp Models)
Example: H12D4850F
Input Status LED.
G
Agencies Approval Pending
Example: H12D4850G
Note: Control Voltage Range 5.5-32 Vdc
Internal Overvoltage Protection.
P
Relay Will Self Trigger Between
900-1200Vpk. Not Suitable For
Capacitive Loads.
Agencies Approval Pending.
Example: H12D4850P
H Heat Transfer Pad (Attached)
Example: H12D4850H
Ordering System: Combination of the
suffixes should be made in the following order:
FPG-10.
Example:
H12D4850FPG-10
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
1.87
(47.5)
BASE PLATE
.125 (3.2)
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
1.87
(47.5)
1.10
(27.9)
.45
(11.4)
OUTPUT
12
1.70
(43.2)
+--
34
INPUT
1.00
(25.4)
1.80
(45.7)
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
1.10
(27.9)
.45
(11.4)
OUTPUT
12
--
4
INPUT
(43.2)
+
3
6-32 TERMINAL
(2 PLACES)
1.70
8-32 TERMINAL
(2 PLACES )
2.30
(58.4)
FASTON TERMINAL
.250 X .032 (2 PLCS.)
2.30
(58.4)
.87 REF.
.78
(19.8)
.90
(22.9)
(22.2)
APPROVALS
UL E116949
CSA LR81689
VDE 10143 UG
FastFax Document No.157
SERIES H12D.
Rev. 111203
PAGE 2 OF 3
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.
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
BASE PLATE
-
.125 (3.2)
All dimensions are in inches (millimeters)
© 2003 CRYDOM CORP, Specifications subject to change without notice.
WEB SITE: http://www.crydom.com
1.00
(25.4)
1.80
(45.7)
FASTON
TERMINAL
.187 X .032
(2 PLCS.)
.78
(19.8)
.90
(22.9)

25A
30
25
20
15
10
Power Dissipation
5
0
510 202515 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
CURRENT DERATING CURVES
3˚C/W
NO HEATSINK
2˚C/W
1˚C/W
95
100
110
120
Base Plate Temp [˚C]
60
40
20
Power Dissipation
0
10 20 40 5030 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
50A
S
25-90
1˚C/W
1.5˚C/W
2˚C/W
NO HEATSINK
eries
A
m
p
•
480 Vac - AC OUTPU
.5˚C/W
90
100
110
120
H
Base Plate Temp [˚C]
12
D
T
75A
120
80
40
Power Dissipation
0
15 30 60 7545 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
1˚C/W
.5˚C/W
.3˚C/W
95
100
110
120
Base Plate Temp [˚C]
90A
120
80
40
Power Dissipation
0
20 40 80 060 20 40 60 80
Load Current [Arms] Max Ambient Temp. [˚C]
© 2003 CRYDOM CORP, Specifications subject to change without notice.
.5˚C/W
1˚C/W
.2˚C/W
.4˚C/W
90
100
110
Base Plate Temp [˚C]
120
FastFax Document No.157
SERIES H12D.
Rev. 111203
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
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