AZ973
40 AMP
AUTOMOTIVE
RELAY
FEATURES
•
•
•
•
•
•
•
40 Amp contact rating
High momentary carry current (60A)
High operating temperature (85°C)
SPST (1 Form A), SPDT (1 Form C)
Quick connect terminals
Metal or plastic mounting bracket available
Resistor or diode parallel to coil available
CONTACTS
Arrangement
Ratings
SPST (1 Form A)
SPDT (1 Form C)
Resistive load:
Max. switched power: 560 W (SPST)
560 W (N.O.)
420 W (N.C.)
Max. switched current: 40 A (SPST)
40 A (N.O.)
30 A (N.C.)
Max. switched voltage: 75 VDC
Material
Resistance
Silver tin oxide
< 100 milliohms initially
(6 V, 1 A voltage drop method)
GENERAL DATA
Life Expectancy
Mechanical
Electrical
Operate Time (max.)
Release Time (max.)
Minimum operations
1 x 10
7
1 x 10
5
at 40 A 14 VDC Res.
7 ms at nominal coil voltage
5 ms at nominal coil voltage
Dielectric Strength
500 Vrms coil to contact
(at sea level for 1 min.)
500 Vrms contact to contact
Insulation Resistance
Dropout
Ambient Temperature
Operating
Storage
Vibration
Shock
Enclosure
100 megohms min. at 500 VDC, 20°C
50% RH
Greater than 10% of nominal coil voltage
-55°C (-67°F) to 85°C (185°F)
-55°C (-67°F) to 105°C (221°F)
0.062" (1.5 mm) DA at 10-40 Hz
100 m/s
2
P.B.T. polyester
Tinned copper alloy
0.25 Quick Connect
Note: Allow suitable slack on leads when wiring
and do not subject the terminals to excessive
force.
COIL
Power
At Pickup Voltage
(typical)
Max. Continuous
Dissipation
Temperature Rise
Temperature
0.68 W
Terminals
5.1 W at 20°C (68°F)
52°C (94°F) at nominal coil voltage
Max. 155°C (311°F)
Weight
31 grams
NOTES
1. All values at 20°C (68°F).
2. Relay may pull in with less than “Must Operate” value.
3. Specifications subject to change without notice.
ZETTLER
electronics GmbH
Tel. +49 89 800 97 0
Fax +49 89 800 97 200
office@ZETTLERelectronics.com
www.ZETTLERelectronics.com
2003-06-24
Junkersstrasse 3, D-82178 Puchheim, Germany
AZ973
RELAY ORDERING DATA
COIL SPECIFICATIONS
Nominal Coil
VDC
6
12
24
Must Operate
VDC
3.9
7.8
15.6
Max. Continuous
VDC
10.6
21.0
42.2
Coil Resistance
Ohm ± 10%
22
85
350
RELAY ORDERING DATA
AZ973-1C-12DC2R1
Blank - Standard no diode, no resistor
R1 - 680 Ohm, ½ W resistor in parallel with 12 V coil
2700 Ohm ½ W resistor in parallel with 24 V coil
R2 - 820 Ohm, ½ W resistor in parallel with 12 V coil
3200 Ohm ½ W resistor in parallel with 24 V coil
D1 - 1N4007 diode in parallel with coil, anode
on #86 terminal
D2 - 1N4007 diode in parallel with coil, cathode
on #86 terminal
D3 - 1N4004 diode in parallel with coil, anode
on #86 terminal
D4 - 1N4004 diode in parallel with coil, cathode
on #86 terminal
C1 - Plastic dust cover with steel mounting bracket
C2 - Plastic dust cover with plastic mounting bracket
C3 - Plastic dust cover
C4 - Plastic dust cover, shrouded, sealed
24D - 24 volt coil
12D - 12 volt coil
6D - 6 volt coil
1A - SPNO Single pole normally open
1C - SPDT Single pole double throw
Basic series designation - AZ973
ZETTLER
electronics GmbH
Tel. +49 89 800 97 0
Fax +49 89 800 97 200
office@ZETTLERelectronics.com
www.ZETTLERelectronics.com
2003-06-24
Junkersstrasse 3, D-82178 Puchheim, Germany
AZ973
MECHANICAL DATA
Version C3
1.032
[26.2]
1.032
[26.2]
.681
[17.3]
Version C1
.472
[12.0]
ø.209
[ø5.3]
.039
[1.0]
.933
[23.7]
.453
[11.5]
.032
[0.8]
.445
[11.3]
.248
[6.3]
.665
[16.9]
Version C2
.630
[16.0]
.705
[17.9]
ø.228
[ø5.8]
.079
[2.0]
.331
[8.4]
.650
[16.5]
.354
[9.0]
.106
[2.7]
1.032
[26.2]
.315
[8.0]
Note:
Dimensions shown for Version C3
are typical for all other versions
WIRING DIAGRAMS
Version C4
30
30
87A
1.768
[44.9]
86
85
86
85
86
85
87
87
R1,R2
FORM A
FORM C
1.398
[35.5]
1.398
[35.5]
1.831
[46.5]
.787
[20.0]
.071
[1.8]
85
86
85
86
5 x .453
[11.5]
.331
[8.4]
30
85
87A
86
.705
[17.9]
87
D1,D3
Viewed Toward Terminals
D2,D4
5 x .248
[6.3]
.272
[6.9]
5 x .032
[0.8]
.173
[4.4]
.665
[16.9]
.354
[9.0]
.315
[8.0]
Dimensions in inches with metric equivalents in parentheses. Tolerance: ± .010"
ZETTLER
electronics GmbH
Tel. +49 89 800 97 0
Fax +49 89 800 97 200
office@ZETTLERelectronics.com
www.ZETTLERelectronics.com
2003-06-24
Junkersstrasse 3, D-82178 Puchheim, Germany
AZ973
Sockets & Hardware for AZ973
ST9721-U1
.079
[2.0]
1.300
[33.0]
1.091
[27.7]
.236
[6.0]
.472
[12.0]
.354
[9.0]
.945
[24.0]
1.205
[30.6]
1.417
[36.0]
ST9721-U2
.245
[6.2]
.075
[1.9]
ST9721-U3
.945
[24.0]
.945
[24.0]
1.043
[26.5]
.200
[5.1]
.345
[8.8]
.059
[1.5]
.571
[14.5]
.138
[3.5]
1.043
[26.5]
.659
[16.7]
.905
[23.0]
5x ø.116
[ø2.9]
.375
[9.5]
.692
[17.6]
.090
[2.3]
PCB LAYOUT
VIEWED TOWARDS TERMINALS
Note: Recommended receptical connector Amp Part numbers are 5-160558-9 or 5-1605-26-9
ZETTLER
electronics GmbH
Tel. +49 89 800 97 0
Fax +49 89 800 97 200
office@ZETTLERelectronics.com
www.ZETTLERelectronics.com
2003-06-24
Junkersstrasse 3, D-82178 Puchheim, Germany
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