CMD / CMA48 Series
• Ratings from 25A to 125A @ 48-530 VAC
• SCR output for heavy industrial loads
• AC or DC control
• LED input status indicator
• Zero-crossing (resistive loads) or random-fire (inductive loads) output
• IP20 touch-safe housing
• Standard box-clamp connections
PRODUCT SELECTION
Control Voltage 25A 50A 75A 90A 110A 125A
4-32 VDC CMD4825 CMD4850 CMD4875 CMD4890 CMD48110 CMD48125
90-140 VAC CMA4825 CMA4850 CMA4875 CMA4890 CMA48110 CMA48125
18-36 VAC CMA4825E CMA4850E CMA2475E CMA4890E CMA48110E CMA48125E
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (1)
Description 25A 50A 75A 90A 110A 125A
Operating Voltage (47-63Hz) [Vrms] 48-530 48-530 48-530 48-530 48-530 48-530
Transient Overvoltage [Vpk] 1200 1200 1200 1200 1200 1200
Maximum Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10 10 10
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2) 500 500 500 500 500 500
Maximum Load Current (3) [Arms] 25 50 75 90 110 125
Minimum Load Current [Arms] 0.15 0.15 0.25 0.25 0.25 0.025
Maximum 1 Cycle Surge Current (50/60) [Apk] 239/250 597/625 954/1000 1145/1200 1432/1500 1670/1750
Maximum On-State Voltage Drop @ Rated Current [Vpk] 1.6 1.6 1.6 1.6 1.6 1.6
Thermal Resistance Junction to Case (Rjc ) [°C/W] 1.02 0.63 0.31 0.28 0.25 0.22
Maximum I² t for Fusing 50/60Hz (1/2 cycle) [A² sec] 285/259 1779/1621 4555/4150 6560/5976 10249/9338 13950/12709
Minimum Power Factor (with Maximum Load) 0.5 0.5 0.5 0.5 0.5 0.5
INPUT SPECIFICATIONS (1)
Description CMD CMA
Control Voltage Range 3-32 VDC 90-140 Vrms
Maximum Reverse Voltage 32 VDC -
Minimum Turn-On Voltage 3.0 VDC 90 Vrms
Minimum Turn-Off Voltage 1.0 VDC 10 Vrms
Maximum Input Current 30 mA (5) -
Typical Input current 17 mA @ 5 VDC 15 mA @ 120 Vrms
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 VDC) 109 Ohm
Maximum Capacitance, Input/Output 8 pF
Ambient Operating Temperature Range -40 to 80 °C
Ambient Storage Temperature Range -40 to 125 °C
Status Indicating Display Green LED
Weight (typical) 3.0 oz (86.5 g)
Encapsulation Ther ma lly conductive Epoxy
Terminals Cage type
Maximum Wire Size-Output: AWG 8 (3.8mm)
Maximum Wire Size-Input: AWG 12 (2.5mm)
Recommended Terminal Screw Torque Range: Output: 10-15 in lb (1.1-1.7 Nm)
Input: 5-6 in lb (0.6-0.7 Nm)
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 2.
4
) Turn-on time for DC control random turn-on versions is 0.02msec
5
) Input circuitry incorporates active current limiter.
MECHANICAL SPECIFICATIONS
THERMAL DERATE INFORMATION
AGENCY APPROVALS
Designed in acc ord anc e wit h the requirem ents of IEC 62314
UL E116949, E116950 LR81689 126921 UG (up to 90A models only)
Rev. 113011
ANNEX - ENVIROMENTAL INFORMATION
