H12 WD Series
•
•
•
•
Ratings from 25A to 125A @ 48-660 V AC
SCR output for heavy industrial loads
AC or DC control
Zero-crossing (resistive loads) or random-fire (inductive loads) output
PRODUCT SELECTION
Control Voltage
4-32 Vdc
25A
H12WD4825
50A
H12WD4850
75A
H12WD4875
90A
H12WD4890
125A
H12WD48125(6)
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (1)
Description
Operating Voltage (47-63Hz) [Vrms]
Transient Overvoltage [Vpk]
Maximum Off-State Leakage Current @ Rated Voltage [mArms]
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2)
Maximum Load Current (3) [Arms]
Minimum Load Current [mArms]
Maximum Surge Current (16.6ms) [Apk]
Maximum On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (Rjc) [°C/W]
Maximum I
2
t for Fusing (8.3 msec) [A
2
sec]
Minimum Power Factor (with Maximum Load)
48-660
1200
1.0
500
25
150
250
1.6
1.02
260
0.5
48-660
1200
1.0
500
50
150
625
1.6
0.63
1620
0.5
48-660
1200
1.0
500
75
150
1000
1.6
0.31
4150
0.5
48-660
1200
1.0
500
90
150
1200
1.6
0.28
6000
0.5
48-660
1200
1.0
500
125
150
1750
1.7
0.22
12700
0.5
For Contact information visit our web
site.
www.crydom.com
©2008 Crydom, Inc.
Specifications subject to change without notice.
INPUT SPECIFICATIONS (1)
Description
Control Voltage Range
Maximum Turn-On Voltage
Minimum Turn-Off Voltage
Typical Input Current
Nominal Input Impedance
Maximum Turn-On Time [msec] (4)
Maximum Turn-Off Time [msec]
DC Control
4-32 VDC
4.0 VDC
1 .0 VDC
15 mADC (5)
See Note 5
1/2 Cycle
1/2 Cycle
GENERAL SPECIFICATIONS
Description
Dielectric Strength, Input/Output/Base (50/60Hz)
Minimum Insulation Resistance (@ 500 V DC)
Maximum Capacitance, Input/Output
Ambient Operating Temperature Range
Ambient Storage Temperature Range
Weight (typical)
Encapsulation
Terminals
Recommended Terminal Screw Torque Range:
Fastons:
Parameters
4000 Vrms
10
9
Ohm
8 pF
-40 to 80 °C
-40 to 125 °C
3 oz (86.5 g)
Thermally conductive Epoxy
Screw and saddle Clamps Furnished, Unmounted
6-32 Screws - 10 in/lbs. 8-32 & 10-32 Screws - 20 in. lbs. (Screws dry without grease)
Single pair (up to 25A) Double pair* (50A model only) Caution: User must connect to both pairs
GENERAL NOTES
1) All parameters at 25°C and per section unless otherwise specified.
2) Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
3) Heat sinking required, for derating curves see page 2.
4) Turn-on time for DC control random turn-on versions is 0.02 msec
5) Input circuitry version incorporates active current limiter.
6) Only 125A model CE Compliant.
For Contact information visit our web
site.
www.crydom.com
©2008 Crydom, Inc.
Specifications subject to change without notice.
MECHANICAL SPECIFICATIONS
THERMAL DERATE INFORMATION
AGENCY APPROVALS
UL E116949
CSA LR81689
VDE 10143 UG
Rev. 063008
For Contact information visit our web
site.
www.crydom.com
©2008 Crydom, Inc.
Specifications subject to change without notice.
For Contact information visit our web
site.
www.crydom.com
©2008 Crydom, Inc.
Specifications subject to change without notice.
For Contact information visit our web
site.
www.crydom.com
©2008 Crydom, Inc.
Specifications subject to change without notice.
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