CKR Series
CKRINST
Rev. 100107
PAGE 1 OF 3
20
30
10
20
40
60
80
Caution

High T
em
perature
Current Rating 20A
@
25
°C

!
REMOVAL FROM DIN RAIL
To achieve maximum ratings, there must be
minimum spacing of 0.8 inch (20mm)
between the devices in free air.
CKR Series SSRs are designed to fit to an industry standard TS35 DIN Rail. Mounting clip incorporates tabs for screw mounting to panel.
SOLID STATE
CONTACTOR
OUTPUT
IN
P
U
T S T A T
U
S
1/L1 2/T1
+3/A1 4/A2
CKR SERIES
SOLID STATE
CONTACTOR
OUTPUT
IN
P
U
T S T A T
U
S
1/L1 2/T1
+3/A1 4/A2
CKR SERIES
(20mm)
Minimum
20
15
25
30
10
5
20 40 60 80
AMBIENT TEMPERATURE (°C)
OUTPUT CURRENT (Arms)
CKR 30Amp
CKR 20Amp
CKR 10Amp
Load Current vs Ambient Temperature
(100 % Duty Cycle)
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.
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.
Pull release tag in direction of arrow using
blade of screwdriver.
MOUNTING CONSIDERATIONS THERMAL CONSIDERATIONS
2030 10
20
40
60
80
Caution High T
emperature
Current Rating 20A @ 25 24°C
!
MOUNTING OF CKR SERIES OF SOLID STATE RELAYS
0.8 inch
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.