Distributor: Electro-Stock www.electrostock.com Tel: 630-682-1542 Fax: 630-682-1562
FEATURES:
• Large switching capacity up to 80A
• Small size and light weight
• PCB pin and quick connect mounting available
• Suitable for automobile and lamp accessories
• QS-9000, ISO-9002 Certified Manufacturing
28.5 x 28.5 x 26.5 (40.0) mm
CONTACT DATA
Contact Arrangement 1A = SPST N.O.
1B = SPST N.C.
1C = SPDT
1U = SPST N.O. (2 terminals)
Contact Configuration Standard Heavy Duty Contact Rating
1A
1B
1C
1U
60A @ 14VDC
40A @ 14VDC
60A @ 14VDC N.O.
40A @ 14VDC N.C.
2x25A @ 14VDC
80A @ 14VDC
70A @ 14VDC
80A @ 14VDC N.O.
70A @ 14VDC N.C.
2x25A @ 14VDC
Contact Resistance < 30 milliohms initial
Contact Material AgSnO2In2O3
Maximum Switching Power 980W
Maximum Switching Voltage 75VDC
Maximum Switching Current 80A
COIL DATA
Coil Voltage
VDC
Coil Resistance
Ω ± 10%
Rated Max. 1.8W
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
6 7.8 20 4.2 0.6
12 15.6 80 8.4 1.2
24 31.2 320 16.8 2.4
1.8
7
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
500V rms min. @ sea level
500V rms min. @ sea level
Shock Resistance 147m/s2 for 11ms
Vibration Resistance 1.5mm double amplitude 10-40Hz
Terminal (Copper Alloy) Strength 8N (Quick Connect), 4N (PCB Pins)
Operating Temperature
Storage Temperature
-40 °C to + 85 °C
-40 °C to + 155 °C
Solderability 230 °C ± 2 °C for 10 ± 0.5s
Weight 46g
CTA3
Distributor: Electro-Stock www.electrostock.com Tel: 630-682-1542 Fax: 630-682-1562
ORDERING INFORMATION
1. Series: 24VDC
CTA3 standard
CTA3F with mounting flange
CTA3M with metal bracket
CTA3F
2.Contact Arrangement:
1A = SPST N.O.
1B = SPST N.C.
1C = SPDT
1U = SPST N.O. **Only available with standard contacts
1C
3. Sealing Options:
S = Sealed
C = Dust Cover
S
4. Termination Options:
P = PCB Pins
Q = Quick Connect
P
5. Coil Voltage:
6VDC
12VDC
24VDC
2
6. Contacts:
1 = Standard
2 = Heavy Duty
7: Coil Suppression:
Blank = Standard
D = Diode (1N4005) Cathode on “86” terminal
R = Resistor (680 Ohms)
2D = 2 diodes (1N4005)
DR = Diode & Resistor (1N4005 & 680 Ohms) Cathode on “86” terminal
** Consult factory if other values are needed.
DIMENSIONS – CTA3 (Units = mm)
Standard contacts (1) with PC Pins Standard contacts (1) with Quick Connects
Heavy duty contacts (2) with PC Pins Heavy duty contacts (2) with Quick Connects
CTA3
Distributor: Electro-Stock www.electrostock.com Tel: 630-682-1542 Fax: 630-682-1562
DIMENSIONS – CTA3F (Units = mm)
Standard contacts (1) with Quick Connects Heavy duty contacts (2) with Quick Connects
DIMENSIONS – CTA3M (Units = mm)
Standard contacts (1) with Quick Connects Heavy duty contacts (2) with Quick Connects
SCHEMATICS, PC PIN DIMENSIONS, & PC LAYOUTS (BOTTOM VIEWS)
1A 1B
1C 1U
CTA3
