
S
eries
C
M
35-65
R
D/C
A
m
M
R
p
•
480 Vac - AC OUTPU
A
48
T
• Zero Voltage and Random
Turn-On Switching
• DIN Rail & Panel Mount
•
• Status Indicating LED
• DC or AC Control
• Integrated Overvoltage
Protection by Automatic
Self Turn-On (Suffix P)
MODEL NUMBERS CMRD4835 CMRD4845 CMRD4855 CMRD4865
OUTPUT SPECIFICATIONS
Operating Voltage (47-63 Hz) [Vrms] 48-530 48-530 48-530 48-530
Max. Load Current @ 25˚C Ambient Temperature [Arms] 35 45 55 65
Min. Load Current, [Arms] 0.15 0.15 0.25 0.25
Transient Overvoltage [Vpk] 1200 1200 1200 1200
Max. Surge Current, (16.6ms) [Apk] 250 625 1000 1200
Max. On-State Voltage Drop @ Rated Current [Vpk] 1.7 1.7 1.7 1.7
Thermal Resistance Junction to Case (R
Maximum I2 t for Fusing, (8.3 msec.) [A2sec] 260 1620 4150 6000
Max. Off-State Leakage Current @ Rated Voltage [mArms] 10 10 10 10
Min. Off-State dv/dt @ Max. Rated Voltage [V/µsec] ➁ 500 500 500 500
Max. Turn-On Time 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
➂
➀
) [˚ C/W] 1.02 0.63 0.31 0.28
θJC
CMRA4835 CMRA4845 CMRA4855 CMRA4865
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.
INPUT SPECIFICATIONS
Control Voltage Range 4-32 Vdc 90-140 Vrms
Max. Reverse Voltage 32 Vdc —
Max. Turn-On Voltage 4.0 Vdc 90 Vrms
Min. Turn-Off Voltage 1.0 Vdc 10 Vrms
Max. Input Current 30.0mA —
Typical Input Current 14mA @ 5 Vdc 15mA @ 120 Vrms
GENERAL NOTES
All parameters at 25˚ C unless otherwise specified.
➀
➁ Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
➂ Turn-on time for DC control random turn-on versions is 0.02msec.
➃ Input circuitry incorporates active current limiter.
FastFax Document No. 171
SERIES CMRD/CMRA.
Rev. 111403
PAGE 3 OF 6
➀
DC CONTROL AC CONTROL
➃
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
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
GENERAL SPECIFICATIONS
Dielectric Strength 50/60Hz Input/Output/Base 4000 Vrms
Insulation Resistance (Min.) @ 500 Vdc 10
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) 16.8 oz. (476g)
Encapsulation: Thermally Conductive Epoxy
Terminals: Cage Type
Maximum Wire Size- Output: AWG 8 (3.8mm) Input: AWG12 (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)
© 2003 CRYDOM CORP, Specifications subject to change without notice.
WEB SITE: http://www.crydom.com
9
Ohm

40
30
50
60
20
10
50 60 70 80
AMBIENT TEMPERATURE (ºC)
OUTPUT CURRENT (Arms)
35 A
40
30
50
60
20
10
AMBIENT TEMPERATURE (ºC)
OUTPUT CURRENT (Arms)
45 A
60
45
75
90
30
15
AMBIENT TEMPERATURE (ºC)
OUTPUT CURRENT (Arms)
55 A
60
45
75
90
30
15
AMBIENT TEMPERATURE (ºC)
OUTPUT CURRENT (Arms)
65 A
20 30 4010
50 60 70 80
20 30 4010
50 60 70 80
20 30 4010
50 60 70 80
20 30 4010
CURRENT DERATING CURVES
© 2003 CRYDOM CORP, Specifications subject to change without notice.
AVAILABLE OPTIONS
-10 Random Turn-On, Phase Controllable
Example: CMRD4835-10
E 24 Vac Input (18-36 Vac)
Example: CMRA4835E
APPROVALS
UL E116950
CSA LR81689
VDE 126921 UG
1.0
(25.4)
0.75
(19.1)
I
N
P
U
T
S
INPUT
OUTPUT
1.75
(44.5)
.9
(22.9)
S
S
U
T
A
T
eries
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
2.5
(63.5)
C
3.0
(76.2)
M
35-65
3.5
(88.9)
R
D/C
A
m
p
M
R
A
•
480 Vac - AC OUTPU
48
T
MECHANICAL SPECIFICATIONS
All dimensions are in inches (millimeters)
3.0
(76.2)
FastFax Document No. 171
SERIES CMRD/CMRA.
Rev. 111403
PAGE 4 OF 6
4.3
(109.2)
P Internal Overvoltage Protection.
Relay Will Self Trigger Between
900-1200Vpk. Not suitable For Capacitive Loads.
Example: CMRD4835P
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
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
WEB SITE: http://www.crydom.com
HEAT SINK:
BLACK ANODIZED
ALUMINUM