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 AgSnO2
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
Ω ± 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 100MΩ min @ 500VDC
Dielectric Strength, Coil to Contact
Contact to Contact
1500V rms min. @ sea level
750V rms min. @ sea level
Shock Resistance 100m/s2 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
