CMD/CMA24 Series
• Ratings from 25A to 125A @ 24-280 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
3-32 VDC
90-140 VAC
18-36 VAC
25A
CMD2425
CMA2425
CMA2425E
50A
CMD2450
CMA2450
CMA2450E
75A
CMD2475
CMA2475
CMA2475E
90A
CMD2490
CMA2490
CMA2490E
110A
CMD24110
CMA24110
CMA24110E
125A
CMD24125
CMA24125
CMA24125E
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
24-280
600
10
500
25
0.15
239/250
1.6
1.02
285/259
0.5
50A
24-280
600
10
500
50
0.15
597/625
1.6
0.63
1779/1621
0.5
75A
24-280
600
10
500
75
0.25
954/1000
1.6
0.31
4555/4150
0.5
90A
24-280
600
10
500
90
0.25
1145/1200
1.6
0.28
6560/5976
0.5
110A
24-280
600
10
500
110
0.25
1432/1500
1.6
0.25
10249/9338
0.5
125A
24-280
600
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
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
stm32/stm8
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