Series CMD24/CMA24
25-125Amp • 240 Vac • AC Output
Featuring state-of-the-art Surface
• Zero Voltage and Random
Mount Technology, these SPST-NO
relays deliver proven reliability in the
most demanding applications. Output
consists of an SCR AC switch and is
available in zero-cross or random
turn-on versions.
Manufactured in Crydom’s ISO 9001
Certified facility for optimum product
performance and reliability.
Turn-On Switching
• Panel Mount
• Status Indicating LED
• DC or AC Control
• Integrated Overvoltage
Protection by Automatic
Self Turn-On (Suffix P)
MODEL NUMBERS
CMD2425 CMD2450 CMD2475 CMD2490 CMD24110 CMD24125
CMA2425 CMA2450 CMA2475 CMA2490 CMA24110 CMA24125
➀
OUTPUT SPECIFICATIONS
Operating Voltage (47-63 Hz) [Vrms]
24-280
25
24-280
50
24-280
75
24-280
90
24-280
110
24-280
125
Max. Load Current➀➀[Arms]
Min. Load Current, [Arms]
0.15
600
250
1.6
0.15
600
625
1.6
0.25
600
0.25
600
0.25
600
0.25
600
Transient Overvoltage [Vpk]
Max. Surge Current, (16.6ms) [Apk]
1000
1.6
1200
1.6
1500
1.6
1750
1.6
Max. On-State Voltage Drop @ Rated Current [Vpk]
Thermal Resistance Junction to Case (R
) [˚C/W]
θJC
2
1.02
260
10
0.63
1620
10
0.31
4150
10
0.28
6000
10
0.25
9340
10
0.22
12700
10
2
Maximum I t for Fusing, (8.3 msec.) [A sec]
Max. Off-State Leakage Current @ Rated Voltage [mArms]
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec] ➀
Max. Turn-On Time ➀
500
500
500
500
500
500
1/2 Cycle (DC Control), 10.0 msec (AC Control)
1/2 Cycle (DC Control), 40.0 msec(AC Control)
Max. Turn-Off Time
Power Factor (Min.) with Max. Load
0.5
0.5
0.5
0.5
0.5
0.5
GENERAL SPECIFICATIONS
Dielectric Strength 50/60Hz Input/Output/Base
Insulation Resistance (Min.) @ 500 Vdc
Max. Capacitance Input/Output
➀
INPUT SPECIFICATIONS DC CONTROL AC CONTROL
4000 Vrms
109 Ohm
Control Voltage Range
Max. Reverse Voltage
Max. Turn-On Voltage
Min. Turn-Off Voltage
Max. Input Current
3-32 Vdc
90-140 Vrms
32 Vdc
—
8 pF
3.0 Vdc
90 Vrms
10 Vrms
—
Ambient Operating Temperature Range
Ambient Storage Temperature Range
Status Indicating Display
-40 to 80˚C
-40 to 125˚C
Green LED
1.0 Vdc
30.0mA➀
Typical Input Current
17mA @ 5 Vdc 15mA @ 120 Vrms
MECHANICAL SPECIFICATIONS
Weight: (typical)
3.0 oz. (86.5g)
GENERAL NOTES
➀ All parameters at 25˚C unless otherwise specified.
➀ Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
➀ HEAT SINKING REQUIRED, for derating curves see page 2.
➀ Turn-on time for DC control random turn-on versions is 0.02msec.
➀➀Input circuitry incorporates active current limiter.
Encapsulation:
Terminals:
Thermally Conductive Epoxy
Cage Type
Maximum Wire Size- Output: AWG 8 (3.8mm) Input: AWG12 (2.5mm)
Max. Terminal Screw Torque: Output: 8.9 in lb (1.0 Nm)
Input: 5.3 in lb (0.6 Nm)
© 2001 CRYDOM CORP, Specifications subject to change without notice.
For recommended applications and more information contact:
USA: Sales Support (877) 502-5500 Tech Support (877) 702-7700 FAX (619) 710-8540
Crydom Corp, 2320 Paseo de las Americas, Ste. 201, San Diego, CA 92154
Email: sales@crydom.com WEB SITE: http://www.crydom.com
UK: +44 (0)1202 365070 • FAX +44 (0)1202 365090 Crydom International Ltd., 7 Cobham
Road, Ferndown Industrial Estate, Ferndown, Dorset BH21 7PE, Email: intsales@crydom.com.
GERMANY: +49 (0)180 3000 506
FastFax Document No. 170
SERIES CMD/CMA.
Rev. 012102
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