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
4-32 VDC
90-140 VAC
18-36 VAC
25A
CMD4825
CMA4825
CMA4825E
50A
CMD4850
CMA4850
CMA4850E
75A
CMD4875
CMA4875
CMA2475E
90A
CMD4890
CMA4890
CMA4890E
110A
CMD48110
CMA48110
CMA48110E
125A
CMD48125
CMA48125
CMA48125E
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 [Arms]
Maximum 1 Cycle Surge Current (50/60) [Apk]
Maximum On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (Rjc) [°C/W]
Maximum I² t for Fusing 50/60Hz (1/2 cycle) [A² sec]
Minimum Power Factor (with Maximum Load)
25A
48-530
1200
10
500
25
0.15
239/250
1.6
1.02
285/259
0.5
50A
48-530
1200
10
500
50
0.15
597/625
1.6
0.63
1779/1621
0.5
75A
48-530
1200
10
500
75
0.25
954/1000
1.6
0.31
4555/4150
0.5
90A
48-530
1200
10
500
90
0.25
1145/1200
1.6
0.28
6560/5976
0.5
110A
48-530
1200
10
500
110
0.25
1432/1500
1.6
0.25
10249/9338
0.5
125A
48-530
1200
10
500
125
0.025
1670/1750
1.6
0.22
13950/12709
0.5
INPUT SPECIFICATIONS (1)
Description
Control Voltage Range
Maximum Reverse Voltage
Minimum Turn-On Voltage
Minimum Turn-Off Voltage
Maximum Input Current
Typical Input current
Maximum Turn-On Time [msec] (4)
Maximum Turn-Off Time [msec]
CMD
3-32 VDC
32 VDC
3.0 VDC
1.0 VDC
30 mA (5)
17 mA @ 5 VDC
1/2 Cycle
1/2 Cycle
CMA
90-140 Vrms
-
90 Vrms
10 Vrms
-
15 mA @ 120 Vrms
10
40
GENERAL SPECIFICATIONS
Description
Dielectric Strength, Input/Output/Base (50/60Hz)
Minimum Insulation Resistance (@ 500 VDC)
Maximum Capacitance, Input/Output
Ambient Operating Temperature Range
Ambient Storage Temperature Range
Status Indicating Display
Weight (typical)
Encapsulation
Terminals
Maximum Wire Size-Output:
Maximum Wire Size-Input:
Recommended Terminal Screw Torque Range:
Parameters
4000 Vrms
10
9
Ohm
8 pF
-40 to 80 °C
-40 to 125 °C
Green LED
3.0 oz (86.5 g)
Thermally conductive Epoxy
Cage type
AWG 8 (3.8mm)
AWG 12 (2.5mm)
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 accordance with the requirements of IEC 62314
UL E116949, E116950
LR81689
126921 UG (up to 90A models only)
Rev. 113011
ANNEX - ENVIROMENTAL INFORMATION
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