AZ9721
AZ
40 AMP
AUTOMOTIVE
RELAY
FEATURES
•
•
•
•
•
•
40 Amp contact rating
High momentary carry current (60A)
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: 480 W (SPST)
480 W (N.O.)
360 W (N.C.)
Max. switched current: 40 A (SPST)
40 A (N.O.)
30 A (N.C.)
Max. switched voltage: 75 VDC
Minimum Load
Material
Resistance
5 VDC, 0.1 A
Silver alloy
< 50 milliohms initially
(24 V, 1 A voltage drop method)
GENERAL DATA
Life Expectancy
Mechanical
Electrical
Operate Time (typical)
Release Time (typical)
Minimum operations
1 x 10
7
1 x 10
5
at rated load
10 ms at nominal coil voltage
10 ms at nominal coil voltage
(with no coil suppression)
Dielectric Strength
750 Vrms coil to contact
(at sea level for 1 min.)
750 Vrms contact to contact
Insulation Resistance
Dropout
Ambient Temperature
Operating
Storage
Vibration
100 megohms min. at 500 VDC, 20°C
50% RH
Greater than 10% of nominal coil voltage
-55°C (-67°F) to 70°C (158°F)
-55°C (-67°F) to 155°C (311°F)
0.062" DA at 20-200 Hz
20 g
P.B.T. polyester
Copper alloy
0.25 Quick Connect
40 grams
COIL
Power
At Pickup Voltage
(typical)
Max. Continuous
Dissipation
Temperature Rise
Temperature
0.76 W
Shock
Enclosure
Terminals
4.0 W at 20°C (68°F)
Weight
63°C (113°F) at nominal coil voltage
Max. 155°C (311°F)
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.
9/3/98W
AZ9721
AZ
COIL SPECIFICATIONS
Nominal Coil
VDC
12
24
Must Operate
VDC
7.8
17.0
Max. Continuous
VDC
17.8
36.0
Coil Resistance
± 10%
80
320
RELAY ORDERING DATA
AZ9721-1C-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 paralle 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 #85 terminal
D2 - 1N4007 diode in parallel with coil, cathode
on #85 terminal
D3 - 1N4004 diode in parallel with coil, anode
on #85 terminal
D4 - 1N4004 diode in parallel with coil, cathode
on #85 terminal
C1 - Plastic dust cover with steel mounting bracket
C2 - Plastic dust cover with plastic mounting bracket
C3 - Plastic dust cover
24D - 24 volt coil
12D - 12 volt coil
1A - SPNO Single pole normally open
1C - SPDT Single pole double throw
Basic series designation - AZ9721
9/3/98W