Crydom Series CMD24, Series CMA24 Data Sheet

MODEL NUMBERS CMD2425 CMD2450 CMD2475 CMD2490 CMD24110 CMD24125

OUTPUT SPECIFICATIONS

➀

CMA2425 CMA2450 CMA2475 CMA2490 CMA24110 CMA24125

Operating Voltage (47-63 Hz) [Vrms] 24-280 24-280 24-280 24-280 24-280 24-280
Max. Load Current➂ [Arms] 25 50 75 90 110 125
Min. Load Current, [Arms] 0.15 0.15 0.25 0.25 0.25 0.25
Transient Overvoltage [Vpk] 600 600 600 600 600 600
Max. Surge Current, (16.6ms) [Apk] 250 625 1000 1200 1500 1750
Max. On-State Voltage Drop @ Rated Current [Vpk] 1.6 1.6 1.6 1.6 1.6 1.6

Thermal Resistance Junction to Case (R

θJC

) [°C/W] 1.02 0.63 0.31 0.28 0.25 0.22

Maximum I2 t for Fusing, (8.3 msec.) [A2sec] 260 1620 4150 6000 9340 12700
Max. Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10 10 10
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec] ➁ 500 500 500 500 500 500
Max. Turn-On Time ➃ 1/2 Cycle (DC Control), 10.0 msec (AC Control)
Max. Turn-Off Time 1/2 Cycle (DC Control), 40.0 msec(AC Control)
Power Factor (Min.) with Max. Load 0.5 0.5 0.5 0.5 0.5 0.5

• Zero Voltage and Random

Turn-On Switching

• Panel Mount

• Status Indicating LED

• DC or AC Control

FastFax Document No. 170
SERIES CMD/CMA.
Rev. 072600
PAGE 1 OF 6

Featuring state-of-the-art Surface
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.

Series CMD24/CMA24

25-125Amp • 240 Vac • AC Output

GENERAL SPECIFICATIONS

Dielectric Strength 50/60Hz Input/Output/Base 4000 Vrms
Insulation Resistance (Min.) @ 500 Vdc 10

9

Ohm

Max. 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

MECHANICAL SPECIFICATIONS

Weight: (typical) 3.0 oz. (86.5g)
Encapsulation: Thermally Conductive Epoxy
Terminals: Cage Type

Maximum Wire Size- Output: AWG 6 (4.1mm) Input: AWG10 (2.6mm)

©2000 CRYDOM CORP, Specifications subject to change without notice.

GENERAL NOTES

➀ All parameters at 25°C unless otherwise specified.
➁ Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
➂ HEAT SINKING REQUIRED, for derating curves see page 2.
➃ Turn-on time for DC control random turn-on versions is 0.02msec.
➄ Input circuitry incorporates active current limiter.

INPUT SPECIFICATIONS

➀

DC CONTROL AC CONTROL

Control Voltage Range 3-32 Vdc 90-140 Vrms
Max. Reverse Voltage 32 Vdc —
Max. Turn-On Voltage 3.0 Vdc 90 Vrms
Min. Turn-Off Voltage 1.0 Vdc 10 Vrms
Max. Input Current 30.0mA➄ —
Typical Input Current 17mA @ 5 Vdc 15mA @ 120 Vrms

• Integrated Overvoltage

Protection by Automatic
Self Turn-On (Suffix P)

For recommended applications and more information contact: 
USA: (800) 8 CRYDOM • [phone] •[phone] • fax [phone]
Crydom Corp, 9525 Chesapeake Drive, San Diego, CA 92123 • Email: [e-mail]
WEB SITE: http://www.crydom.com FASTFAX Product Information: [phone]
UK: (44)1202 857300 • fax [phone] Crydom International Ltd., Riverside House 
Brook Road, Wimborne, Dorset, England BH21 2BH, Email: [e-mail].
GERMANY: 0180 3000 506 • fax [phone] Crydom GmbH

Max. Terminal Screw Torque: Output: 8.9 in lb (1.0 Nm)
Input: 5.3 in lb (0.6 Nm)

CURRENT DERATING CURVES

FastFax Document No. 170
SERIES CMD/CMA.
Rev. 072600
PAGE 2 OF 6

Series CMD24/CMA24

25-125Amp • 240 Vac • AC Output

AVAILABLE OPTIONS

-10 Random Turn-On, Phase Controllable
Example: CMD2450-10

E 24 Vac Input (18-36 Vac)

Example: CMA2450E

APPROVALS

UL E116949
CSA LR81689
VDE 126921 UG

©2000 CRYDOM CORP, Specifications subject to change without notice.

P Internal Overvoltage Protection

Relay Will Self Trigger Between
450-600 Vpk. Not Suitable For Capacitive Loads
Example: CMD2450P

0.75

MOUNTING
HOLE/SLOT

0.17 (4.3) DIA.

2.4

(63.5)

(19.1)

(11.4)

I

N

S

P

U

U

T

T

A

S

T

INPUT

SOLID STATE RELAY

OUTPUT

1.75

(44.5)

.9

(22.9)

.45

2.5

(63.5)

1.15

(29.2)

3.0

(76.2)

MECHANICAL SPECIFICATIONS

All dimensions are in inches (millimeters)

CMRD24/CMRA24 available with
factory mounted heat sink and DIN rail
mounting clip. Specifications available
via FastFax, request document No. 171.

3.0

(76.2)

25A

30

25

20

15

10

Power Dissipation

5

0

5 10 20 2515 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

90A

120

80

40

Power Dissipation

0

20 40 80 060 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

3°C/W

2°C/W

NO HEATSINK

.5°C/W

1°C/W

1°C/W

.2°C/W

.4°C/W

100

110

120

90

100

110

120

50A

95

Base Plate Temp [°C]

60

40

20

Power Dissipation

0

10 20 40 5030 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

1°C/W

1.5°C/W

2°C/W

NO HEATSINK

.5°C/W

90

100

110

120

Base Plate Temp [°C]

90

60

30

Power Dissipation

0

15 30 60 7545 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

110A

Base Plate Temp [°C]

160

120

80

Power Dissipation

40

0

30 60 120 090 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

For recommended applications and more information contact: 
USA: (800) 8 CRYDOM • [phone] •[phone] • fax [phone]
Crydom Corp, 9525 Chesapeake Drive, San Diego, CA 92123 • Email: [e-mail]

WEB SITE: http://www.crydom.com FASTFAX Product Information: [phone]
UK: (44)1202 857300 • fax [phone] Crydom International Ltd., Riverside House 
Brook Road, Wimborne, Dorset, England BH21 2BH, Email: [e-mail].
GERMANY: 0180 3000 506 • fax [phone] Crydom GmbH

1°C/W

.4°C/W

.5°C/W

90

.2°C/W

100

110

120

Base Plate Temp [°C]

160

120

80

Power Dissipation

40

0

30 60 120 090 20 40 60 80

Load Current [Arms] Max Ambient Temp. [°C]

75A

125A

1°C/W

.5°C/W

1°C/W

.5°C/W

.4ºC/W

.2°C/W

.3°C/W

95

100

110

Base Plate Temp [°C]

120

90

100

110

Base Plate Temp [°C]

120