Installation Note for
CKR Series
Crydoms CKR Series Solid State Relays were developed to offer the
advantages of semiconductor switching technology in a standard 22.5mm
industrial package. Quick and easy installation is coupled with low drive
power requirements and efficient, reliable power SCR output. Box
Clamp terminals and LED status indication complete the package. This
compact new design offers up to 30Arms in ambient temperatures of 25C.
Manufactured in Crydom’s ISO 9001 Certified facility for optimum product
performance and reliability.
APPROVALS: UL, CSA, VDE, CE Mark.
MOUNTING OF CKR SERIES OF SOLID STATE RELAYS
CKR Series SSRs are designed to fit to an industry standard TS35 DIN Rail. Mounting clip incorporates tabs for screw mounting to panel.
FITTING TO THE DIN RAIL
Locate rail and align with non moveable
end of CKR DIN clip. Using reasonable
force, push CKR in the direction of the
arrow shown.
!
perature
High Tem
Caution
80
°C
25
60
@
40
ating 20A
20
Current R
30
20
10
MOUNTING CONSIDERATIONS
To achieve maximum ratings, there
must be a minimum spacing of 20mm
between the devices in free air.
20mm
Minimum
4/A2
+3/A1
1/L1
I
N
P
U
CKR SERIES
SOLID STATE
CONTACTOR
OUTPUT
S
U
T
T
A
S
T
2/T1
+3/A1
1/L1
I
N
P
U
CKR SERIES
SOLID STATE
CONTACTOR
OUTPUT
4/A2
S
U
T
T
A
S
T
2/T1
!
Caution
High Temperature
REMOVAL FROM DIN RAIL
Pull release tag in direction of arrow using
blade of screwdriver.
!
Caution
High Temperature
80
60
40
20
Current Rating 20A @ 25 24°C
30
10
20
THERMAL CONSIDERATIONS
The CKR power switching range is based on semiconductor
technology and therefore generates heat during operation.
The following derating curves must be observed before installation.
Crydom products are rated for 100% Duty Cycle.
Load Current vs Ambient Temperature
(100 % Duty Cycle)
CKR 30Amp
30
25
CKR 20Amp
20
15
CKR 10Amp
10
OUTPUT CURRENT (Arms)
5
20 40 60 80
AMBIENT TEMPERATURE (°C)
Warning - Heatsink will become hot during operation.
CKRINST
Rev. 112305
PAGE 1 OF 2
ORDERING INFORMATION
Part Number
CKR A 2
Package Style
= CKR Series
CKR
Input (Control) Type
D = 4.5-32 Vdc
A = 90-280 Vrms
= 18-36 Vrms (suffix E)
Output Voltage
24 = 24 - 280
48 = 48 - 530
60 = 48 - 660
Vrms
Vrms
Vrms
Output Current
10 = 10 Amp
20 = 20 Amp
30 = 30 Amp
AC Control Range
Blank = 90-280 Vrms
E = 18-36 Vrms
Integrated Overvoltage Protection
Blank = Not Included
P = Included
Control Mode
Blank = Zero Cross
10 = Random
GENERAL NOTES
All parameters at 25°C unless otherwise specified.
•
•
Off-State dv/dt test method per EIA/NARM standard RS-443, paragraph 13.11.1
•
Turn-on time for DC control random turn-on versions is 0.02msec.
Input circuitry for DC control version incorporates active current limiter.
•
PROTECTION
Over Current and Short Circuit
A solid state relay should be protected by a semiconductor fuse.
This type of fuse provides extremely fast opening of the circuit.
A fuse should be selected that has an I t let-through rating that
is less than the I t capability of the SSR, for the same duration.
2
Transient Over Voltage (P OPTION)
Select "P" option for internal overvoltage protection. At the
presence of high voltage transient the output of the SSR will be
triggered on, and the transient will be passed on to the load circuit
This is a non-degrading method of protection that ensures that
other SSR benefits are maintained.
2
E
4
0
3
P
0
1
Note: For detailed electrical specifications see Crydom individual data sheets.
© 2005 CRYDOM CORP, Specifications subject to change without notice.
MECHANICAL SPECIFICATIONS
All dimensions are in inches (millimeters)
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
I
N
S
P
U
U
T
T
A
S
T
4/A2
+3/A1
CKR SERIES
SOLID STATE
1/L1
CONTACTOR
2.6
(66.0)
OUTPUT
2/T1
.5
(12.7)
.890
(22.5)
(81.9)
3.5
3.2
(88.9)
3.2
(81.3)
Earth Bonding (Grounding)
The CKR heatsink is equiped with an earth bonding screw as is
required for Class 1 Protection, in accordance with EN 60950
(VDE 0804).
Terminations
Wire Size • Maximum wire size of AWG#10 (3mm) on
both input and output terminals.
Connections • Ensure that wires ends are stripped to a
minimum length of 10mm.
Recommended Screw Torque Range
• 5.0-6.0 in lb (0.6-0.7 Nm) on input and output termination.
CKRINST
Rev. 112305
PAGE 2 OF 2
© 2005 CRYDOM CORP, Specifications subject to change without notice.
CONTACT DETAILS
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
WEB SITE: http://www.crydom.com
(99.0)
Current Rating 20A @ 25°C
30
20
10
20
40
60
3.9
80
Caution
High Temperature
!
HEAT SINK:
BLACK ANODIZED
ALUMINUM
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