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.
MOUNTING 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.
REMOVAL FROM DIN RAIL
Pull release tag in direction of arrow using
blade of screwdriver.
Caut
High
io
Tem n
pera
ture
!
Curr
ent
Ratin
g 20
A@
60
Current Rating 20A @ 25 24°C
40
20
30
20
10
30
MOUNTING CONSIDERATIONS
To achieve maximum ratings, there must be
minimum spacing of 0.8 inch (20mm)
between the devices in free air.
0.8 inch
(20mm)
Minimum
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)
30
25
CKR 30Amp
OUTPUT CURRENT (Arms)
20
10
+3/A1
IN
P
4/A2
S
+3/A1
IN
P
4/A2
U
20
15
10
5
TU
U
T
ST
A
T
ST
A
TU
S
CKR SERIES
CKR SERIES
SOLID STATE
CONTACTOR
SOLID STATE
CONTACTOR
20
40
60
80
Caution
High Temperature
25°C
80
!
CKR 20Amp
CKR 10Amp
OUTPUT
OUTPUT
20
2/T1
40
60
80
AMBIENT TEMPERATURE (°C)
1/L1
2/T1
1/L1
CKRINST
Rev. 100107
PAGE 1 OF 3
CRYDOM [ CRYDOM INC., ]
