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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 107 1 x 105 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, 20C 50% RH Greater than 10% of nominal coil voltage -55C (-67F) to 70C (158F) -55C (-67F) to 155C (311F) 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 20C (68F) Weight 63C (113F) at nominal coil voltage Max. 155C (311F)
NOTES
1. All values at 20C (68F). 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, 1/2 w resistor in parallel with 12 V coil 2700 Ohm 1/2 w resistor in paralle with 24 V coil R2 - 820 Ohm, 1/2 w resistor in parallel with 12 V coil 3200 Ohm 1/2 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
AZ9721 AZ
MECHANICAL DATA
AZ9721-C1
o.217 [o5.5] .394 [10.0] .394 [10.0]
AZ9721-C2
o.217 [o5.5]
.984 [25.0]
.984 [25.0]
5x.433 [11.0] 5x.031 [0.8] 5x.177 [4.5] 5x.248 [6.3] 5x .031 [0.8] 5x.177 [4.5]
5x.433 [11.0]
5x.248 [6.3]
.165 [4.2] .378 [9.6] .346 [8.8] 1.102 [28.0]
.150 [3.8] .378 [9.6] .346 [8.8] 1.102 [28.0]
.661 [16.8] 1.102 [28.0]
.661 [16.8] 1.102 [28.0]
AZ9721-C3
Wiring Diagram
.984 [25.0]
85
86
85
86
85
86
5x.433 [11.0] 5x.177 [4.5] 5x.031 [0.8]
R1,R2
5x.248 [6.3]
D2,D4
D1,D3
30
30
.098 [2.5] .378 [9.6] .346 [8.8] 1.102 [28.0]
85
87A
86
85
86
87
87
1C
.661 [16.8] 1.102 [28.0]
1A
9/3/98W
AZ9721
Sockets & Hardware for AZ9721
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 o.116 [o2.9] .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
9/3/98W

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