Series 1 480 VAC
• Ratings from 25A to 90A @ 80-530 VAC
• SCR output for heavy industrial loads
• AC or DC control
• Zero-crossing (resistive loads) or random-fire (inductive loads) output
PRODUCT SELECTION
Control Voltage 25A 50A 75A 90A
3-32 VDC D4825 D4850 D4875 D4890
90-280 VAC A4825 A4850 A4875 A4890
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (1)
Description 25A 50A 75A 90A
Operating Voltage (47-63Hz) [Vrms] 80-530 80-530 80-530 80-530
Transient Overvoltage [Vpk] 800 800 800 800
Maximum Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2) 500 500 500 500
Maximum Load Current (3) [mArms] 25 50 75 90
Minimum Load Current [mArms] 40 40 40 40
Maximum 1 Cycle Surge Current (50/60Hz) [Apk] 239/250 597/625 954/1000 1145/1200
Maximum On-State Voltage Drop @ Rated Current [Vpk] 1.7 1.7 1.7 1.7
Thermal Resistance Junction to Case (Rjc ) [°C/W] 1.02 0.63 0.31 0.28
Maximum 1/2 Cycle I² t for Fusing (50/60Hz) [A2 sec] 285/259 1779/1621 4555/4150 6560/5976
Minimum Power Factor (with Maximum Load) 0.5 0.5 0.5 0.5
Generation 3
For 4th Generation datasheet click here
INPUT SPECIFICATIONS (1)
Description ( D PREFIX) ( A PREFIX)
Control Voltage Range 3-32 VDC 90-280 Vrms (60Hz)
Maximum Reverse Voltage -32 -
Maximum Turn-On Voltage 3.0 VDC 90 Vrms
Minimum T urn -Off Voltage 1.0 VDC 10 Vrms
Typical Input Current 2.0 mA (5) 2.0 mA @ 120 Vrms, 4.0 mA @ 240 Vrms
Nominal Input Impedance See Note (5) 60 K Ohms
Maximum Turn-On Time [msec] (4) 1/2 Cycle 10
Maximum Turn-Off Time [msec] 1/2 Cycle 40
GENERAL SPECIFICATIONS
Description Parameters
Dielectric Strength, Input/Output/Base (50/60Hz) 4000 Vrms
Minimum Insulation Resistance (@ 500 V DC) 109 Ohm
Maximum Capacitance, Input/Output 8 pF
Ambient Operating Temperature Range -40 to 80 °C
Ambient Storage Temperature Range -40 to 125 °C
Weight (typical) 3 oz (86.5g)
Encapsulation Ther ma lly conductive Epoxy
Terminals Screw and saddle Clamps Furnished, Unmounted
Recommended Terminal Screw Torque Range: 6-32 Screws - 10 in/lbs. 8-32 & 10-32 Screws - 20 in. lbs.
Fastons: 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 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 3.
4) Turn-on time for Random turn-on versions is 0.02 msec (DC Control Models)
5) Input circuitry incorporates active current limiter.
WIRING DIAGRAM
Generation 3
MECHANICAL SPECIFICATIONS
THERMAL DERATE INFORMATION
AGENCY APPROVALS
Designed in acc ord anc e wit h the re quirem ents of IEC 62314
E116949 LR81689 10143 UG (Not Applicable: -B and 4D)
Rev. 071112
Generation 3
Generation 3
ANNEX - ENVIROMENTAL INFORMATION Generation 3
