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CKR

Crydoms CKR Series

Crydom Inc., 

ORDERING INFORMATION

Part Number

Package Style

CKR = CKR Series

Input (Control) Type

D = 4.0-32 Vdc

A = 90-280 Vrms

= 18-36 Vrms (suffix E)

Output Voltage

24 = 24 - 280 Vrms

48 = 48 - 530 Vrms

60 = 48 - 660 Vrms

Output Current

10 = 10 Amp

20 = 20 Amp

30 = 30 Amp

CKR A 2 4 3 0 E P 1 0

Control Mode

Blank = Zero Cross

10 = Random

Integrated Overvoltage Protection

Blank = Not Included

P = Included

AC Control Range

Blank = 90-280 Vrms

E = 18-36 Vrms

Note: For detailed electrical specifications see Crydom individual data sheets.

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 2t let-through rating that

is less than the I 2t capability of the SSR, for the same duration.

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.

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 0.4 inch (10mm).

Recommended Screw Torque Range

• 5.0-6.0 in lb (0.6-0.7 Nm) on input and output termination.

MECHANICAL SPECIFICATIONS

All dimensions are in inches (millimeters)

MOUNTING

HOLE/SLOT

0.17 (4.3) DIA.

T

+3/A1

STA

4/A2

CKR SERIES

SOLID STATE

CONTACTOR

2.6

(66.0)

3.2

(81.9)

3.5

(88.9)

OUTPUT

1/L1 2/T1

.5

(12.7)

.890

(22.5)

3.2

(81.3)

3.9

(99.0)

Current Rating 20A @ 25°C

30

20

10

20

40

60

!

Caution

High Temperature

80

HEAT SINK:

BLACK ANODIZED

ALUMINUM

CKRINST

Rev. 100107

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