H12WD Series • Ratings from 25A to 125A @ 48-660 V AC • SCR output for heavy industrial loads • DC control • Zero-crossing (resistive loads) or random-fire (inductive loads) output PRODUCT SELECTION Control Voltage 4-32 Vdc 25A 50A 75A 90A 125A (6) H12WD4825 H12WD4850 H12WD4875 H12WD4890 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 1 Cycle Surge Current (50/60Hz) [Apk] Maximum On-State Voltage Drop @ Rated Current [Vpk] Thermal Resistance Junction to Case (Rjc) [°C/W] Maximum 1/2 Cycle I² t for Fusing (50/60Hz) [A2 sec] Minimum Power Factor (with Maximum Load) 25A 50A 75A 90A 125A (6) 48-660 1200 1.0 500 25 150 239/250 1.6 1.02 285/259 0.5 48-660 1200 1.0 500 50 150 597/625 1.6 0.63 1779/1621 0.5 48-660 1200 1.0 500 75 150 954/1000 1.6 0.31 4555/4150 0.5 48-660 1200 1.0 500 90 150 1145/1200 1.6 0.28 6560/5976 0.5 48-660 1200 1.0 500 125 150 1670/1750 1.7 0.22 13950/12709 0.5 INPUT SPECIFICATIONS (1) Description DC Control 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] 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 109 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. 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) CE Compliant only. MECHANICAL SPECIFICATIONS THERMAL DERATE INFORMATION AGENCY APPROVALS Designed in accordance with the requirements of IEC 62314 E116949 (25, 50, 75 and 90A) E116950 (25 and 125A) LR81689 10143 UG Rev. 120811 ANNEX - ENVIROMENTAL INFORMATION