CIT A31CSQ24VDC12D Large switching capacity up to 80a Datasheet

A3
RoHS Compliant
28.5 x 28.5 x 26.5 (40.0) mm
Features
F
eatures
•
•
•
•
Large switching capacity up to
t 80A
PCB pin and quick connect mounting available
Suitable for automobile and lamp accessories
QS-9000, ISO-9002 Certified Manufacturing
Contact Data*
Contact
1A = SPST N.O.
Contact Resistance
< 30 milliohms initial
Arrangement
1B = SPST N.C.
Contact Material
AgSnO2In2O3
1C = SPDT
Max Switching Power
1120W
1U = SPST N.O. (2 terminals)
Max Switching Voltage
75VDC
Standard
Heavy Duty
Max Switching Current
80A
1A
60A @ 14VDC
80A @ 14VDC
1B
40A @ 14VDC
70A @ 14VDC
1C
60A @ 14VDC N.O.
80A @ 14VDC N.O.
40A @ 14VDC N.C.
70A @ 14VDC N.C.
2x25A @ 14VDC
2x25@ 14VDC
Contact Rating
1U
Coil Data*
Coil Voltage
VDC
Coil Resistance
Ω +/- 10%
Pick Up Voltage
VDC (max)
Release Voltage
VDC (min)
Rated
Max
1.8W
70% of rated
voltage
10% of rated
voltage
12
15.6
80
8.40
1.2
24
31.2
320
16.80
2.4
Coil Power
W
Operate Time
ms
Release Time
ms
1.80
7
5
General Data*
Electrical Life @ rated load
100K cycles, average
Mechanical Life
10M cycles, average
Insulation Resistance
100M Ω min. @ 500VDC initial
Dielectric Strength, Coil to Contact
500V rms min. @ sea level initial
Contact to Contact
500V rms min. @ sea level initial
Shock Resistance
147m/s2 for 11 ms
Vibration Resistance
1.5mm double amplitude 10~40Hz
Terminal (Copper Alloy) Strength
8N (quick connect), 4N (PCB pins)
Operating Temperature
-40oC to +125oC
Storage Temperature
-40oC to +155oC
Solderability
260oC for 5 s
Weight
46g
*
Values can change due to the switching frequency, desired reliability levels, environmental conditions and in-rush load levels. It is recommended to test actual load conditions for the
application. It is the user’s responsibility to determine the performance suitability for their specific application. The use of any coil voltage less than the rated coil voltage may compromise
the operation of the relay.
www.citrelay.com
phone - 763.535.2339
Dimensions shown in mm. Dimensions are shown for reference purposes only.
fax - 763.535.2194
page 1
Specifications and availability subject to change without notice.
A3
Ordering Information
1. Series
A3F
1C
S
Q
24VDC
2
A3 standard
A3F with mounting flange
A3M with metal bracket
2. Contact Arrangement
1A = SPST N.O.
1B = SPST N.C.
1C = SPDT
1U = SPST N.O. *only available with standard contacts
3. Sealing Option
S = Sealed *Sealing only available with heavy duty contacts
C = Dust Cover
4. Termination
P = PCB Pins
Q = Quick Connect
5. Coil Voltage
12VDC
24VDC
6. Contacts
1 = Standard *Sockets for these models can be found on the CIT Relay Socket catalog page
2 = Heavy Duty *We recommend the PR series socket from Custom Connector Corporation
7. Coil Suppression
Blank = Standard
D = Diode (1N4005) Cathode on “86” terminal
R = Resistor (180Ω for 6VDC; 680Ω for 12VDC; 2700Ω for 24VDC)
2D = 2 Diodes (1N4005)
DR = Diode & Resistor Cathode on “86” terminal (1N4005 & 180Ω for 6VDC; 680Ω for 12VDC; 2700Ω for 24VDC)
** Consult factory if other values are needed
Dimensions - A3
Units = mm
28.65
[1.13]
28.65
[1.13]
17.90
[.70]
2.60 TYP
8.40 [.10]
[.33]
26.20
[1.03]
8.40
[.33]
8.40
[.33]
.80 TYP
[.032]
6.35 TYP
[.250]
Standard contacts (1) with PC Pin
page 2
28.65
[1.13]
26.20
[1.03]
31.70
[1.25]
3.20
[.13]
28.65
[1.13]
www.citrelay.com
11.60 TYP
[.46]
Standard contacts (1) with Quick Connect
phone - 763.535.2339
Dimensions shown in mm. Dimensions are shown for reference purposes only.
fax - 763.535.2194
Specifications and availability subject to change without notice.
A3
Dimensions - A3 Heavy Duty
Units = mm
28.90
[1.14]
31.60
[1.24]
9.50 TYP
[.37]
27.55
[1.08]
27.55
[1.08]
2X 1.50
2X 8.40 [.06]
1.65 TYP
[.06]
28.40
[1.12]
28.40
[1.12]
28.60
[1.13]
17.90
[.70]
[.33]
2X 11.60
[.46]
8.40
[.33]
3X 15.60
[.61]
2X .80
[.032]
8.40
[.33]
3X 9.53
[.375]
Heavy Duty contacts (2) with PC Pins
2X 6.35
[.250]
3X 1.27
[.050]
Heavy Duty contacts (2) with Quick Connects
Dimensions - A3F
Units = mm
29.05
[1.14]
28.65
[1.13]
21.90
[.86]
32.00
[1.26]
Ø5.60
[.22]
9.50
[.37]
9.70
[.38]
42.50
[1.67]
26.20
[1.03]
43.60
[1.72]
27.50
[1.08]
2X 11.60
[.46]
.80TYP
[.032]
6.35 TYP
[.250]
32.00
[1.26]
21.90
[.86]
Ø5.60
[.22]
3X 9.53
[.375]
11.60 TYP
[.46]
Standard contacts (1) with Quick Connect
3X 15.60
[.61]
2X .80
[.032]
2X 6.35
[.250]
3X 1.27
[.050]
Heavy Duty contacts (2) with Quick Connects
Dimensions - A3M
Units = mm
28.65
[1.13]
32.85
[1.29]
15.00
[.59]
28.65
[1.13]
15.00
[.59]
10.95
[.43]
32.85
[1.29]
Ø5.50
[.22]
10.75
[.42]
43.10
[1.70]
2X 11.60
[.46]
26.20
[1.03]
6.35 TYP
[.250]
.80TYP
[.032]
3X 9.53
[.375]
11.60 TYP
[.46]
Standard contacts (1) with Quick Connect
www.citrelay.com
44.60
[1.76]
27.50
[1.08]
3X 1.27
[.050]
2X 6.35
[.250]
Heavy Duty contacts (2) with Quick Connects
phone - 763.535.2339
Dimensions shown in mm. Dimensions are shown for reference purposes only.
3X 15.60
[.61]
2X .80
[.032]
fax - 763.535.2194
page 3
Specifications and availability subject to change without notice.
A3
Schematics & PC Layouts
Bottom Views
86
86
30
9.50
[.37]
87
8.40
[.33]
87a
30
85
2X 8.40
[.33]
85
8.00
[.31]
Ø3.00 TYP
[.12]
1A
1B
Standard PC Layout
2X Ø1.95
[.08]
86
30
87a
85
86
87
3.80
[.15]
87a
30
9.50
[.37]
2X 8.40
[.33]
3.80
[.15]
page 4
9X Ø2.20
[.09]
85
1U
www.citrelay.com
3.80
[.15]
87
8.00
[.31]
1C
8.40
[.33]
3.80
[.15]
Heavy Duty PC Layout
phone - 763.535.2339
Dimensions shown in mm. Dimensions are shown for reference purposes only.
fax - 763.535.2194
Specifications and availability subject to change without notice.
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