CKRA4820P Crydom Co., CKRA4820P Datasheet - Page 2

• Manufacturer Part Number: CKRA4820P
• Description: SSR, DIN RAIL MOUNT, 530VAC, 280VAC, 20A
• Manufacturer: Crydom Co.
• Series: CKR48r

Specifications of CKRA4820P

• Control Voltage Type: AC
• Control Voltage Range: 90VAC To 280VAC
• Operating Voltage Range: 48Vrms To 530Vrms
• Peak Surge Current: 250A
• Contact Configuration: SPST-NO
• Load Current: 20A
• Circuit: SPST-NO (1 Form A)
• Output Type: AC, Zero Cross
• Voltage - Input: 90 ~ 280VAC
• Voltage - Load: 48 ~ 530 V
• Mounting Type: DIN Rail
• Termination Style: Screw Terminal
• Package / Case: SSR with Integrated Heatsink
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• On-state Resistance: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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.
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
Connections
Recommended Screw Torque Range
CKRINST
Rev. 100107
PAGE 2 OF 3
ORDERING INFORMATION
Part Number
Package Style
Input (Control) Type
Output Voltage
Output Current
CKR = CKR Series
20
30
10
D
A
24 = 24 - 280
48 = 48 - 530
60 = 48 - 660
= 4.0-32 Vdc
= 90-280 Vrms
= 18-36 Vrms (suffix E)
= 10 Amp
= 20 Amp
= 30 Amp
both input and output terminals.
minimum length of 0.4 inch (10mm).
• Maximum wire size of AWG#10 (3mm) on
• Ensure that wires ends are stripped to a
• 5.0-6.0 in lb (0.6-0.7 Nm) on input and output termination.
2
Vrms
Vrms
Vrms
2
CKR
A
2
4
Note: For detailed electrical specifications see Crydom individual data sheets.
3
0
E
P
+3/A1
1/L1
SOLID STATE
CONTACTOR
CKR SERIES
OUTPUT
2/T1
4/A2
1
MECHANICAL SPECIFICATIONS
(12.7)
0
(66.0)
(99.0)
.5
(22.5)
2.6
.890
3.9
MOUNTING
HOLE/SLOT
0.17 (4.3) DIA.
All dimensions are in inches (millimeters)
(81.9)
3.2
20
30
10
(88.9)
3.5
Current Rating 20A @ 25°C
20
Integrated Overvoltage Protection
Control Mode
AC Control Range
Blank = Zero Cross
Blank = Not Included
10
P
Blank = 90-280 Vrms
E
40
60
(81.3)
= Included
= Random
3.2
= 18-36 Vrms
80
High T emperature
Caution
!
HEAT SINK:
BLACK ANODIZED
ALUMINUM