Distributor: Electro-Stock www.electrostock.com Tel: 630-682-1542 Fax: 630-682-1562
FEATURES:
Low coil power consumption
Small size and light weight
Switching current up to 20A
Suitable for household appliances, automotive applications
Dual relay available
16.9 x 14.5 (29.7) x 19.5 mm
CONTACT DATA
Contact Arrangement
1A & 1U = SPST N.O.
1C & 1W = SPDT
2A & 2U = (2) SPST N.O.
2C & 2W = (2) SPDT
Contact Ratings
1A, 1C, 2A, & 2C: 10A @ 120VAC, 28VDC; 20A @ 14VDC
1U, 1W, 2U, & 2W: 2x10A @ 120VAC, 28VDC; 2x20A @ 14VDC
Contact Resistance
< 30 milliohms initial
Contact Material
AgSnO
2
Maximum Switching Power
1A & 1C = 280W; 1U & 1W = 2x280W
Maximum Switching Voltage
380VAC, 75VDC
Maximum Switching Current
20A
COIL DATA
Coil Voltage
VDC
Rated Max.
Coil Resistance
10%
Pick Up Voltage
VDC (max)
75%
of rated voltage
Release Voltage
VDC (min)
10%
of rated voltage
Coil Power
W
Operate Time
ms
Release Time
ms
3 3.9
9
2.25
0.3
5 6.5
25
3.75
0.5
6 7.8
36
4.50
0.6
9 11.7
85
6.75
0.9
12 15.6
145
9.00
1.2
18 23.4
342
13.50
1.8
24 31.2
576
18.00
2.4
1.0
10
5
CAUTION:
1.
The use of any coil voltage less than the rated coil voltage may compromise the operation of the relay.
2.
Pickup and release voltages are for test purposes only and are not to be used as design criteria.
GENERAL DATA
Electrical Life @ rated load
Mechanical Life
100K cycles, typical
10M cycles, typical
Insulation Resistance
100M
min @ 500VDC
Dielectric Strength, Coil to Contact
Contact to Contact
1500V rms min. @ sea level
750V rms min. @ sea level
Shock Resistance
100m/s
2
for 11ms
Vibration Resistance
1.27mm double amplitude 10-40Hz
Terminal (Copper Alloy) Strength
10N
Operating Temperature
Storage Temperature
-40
C to + 85 C
-40
C to + 155 C
Solderability
230
C 2 C for 10 0.5s
Weight
12g & 24g
CTA4
Distributor: Electro-Stock www.electrostock.com Tel: 630-682-1542 Fax: 630-682-1562
ORDERING INFORMATION
1. Series:
CTA4
CTA4
2.Contact Arrangement:
1A = SPST N.O.
1C = SPDT
1U = SPST N.O.
1W = SPDT
2A = (2) SPST N.O.
2C = (2) SPDT
2U = (2) SPST N.O.
2W = (2) SPDT
1C
3. Sealing Options:
S = Sealed
C = Dust Cover
S
4. Coil Voltage:
3VDC
5VDC
6VDC
9VDC
12VDC
18VDC
24VDC
12VDC
DIMENSIONS (Units = mm)
SINGLE PACKAGE
DUAL PACKAGE
SCHEMATICS & PC LAYOUTS (BOTTOM VIEWS)
1A 1C 1U 1W
2A 2C 2U 2W
CTA4
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