CONTACTS
Arrangement SPST (1 Form A, 1 Form B)
SPDT (1 Form C)
Ratings Resistive load:
Max. switched power: 480 W or 5540 VA
Max. switched current: 20 A
Max. switched voltage: 150* VDC or 380 VAC
*Note: If switching voltage is greater than 30VDC, special
precautions must be taken. Please contact the factory.
Rated Load 20 A at 277 VAC N.O. resistive, 50k cycles
UL, CUR 16 A at 240 VAC general use, 100k cycles
12 A at 277 VAC N.O. resistive., 100k cycles
20 A at 24 VDC resistive
1 HP 240 VAC
TV-8 120 VAC N.O. (silver tin oxide only)
TÜV 16 A at 30 VDC, 250 VAC resistive, 30k cycles*
13 A at 420 VAC resistive, 30k cycles *
*approval for form A , C, and Class F only
Material Silver cadmium oxide (silver tin oxide available)
Resistance < 50 milliohms initially
(24 V, 1 A voltage drop method)
AZ755
4/24/09W
20 AMP MINIATURE
POWER RELAY
FEATURES
•Dielectric strength 5000 Vrms
•Low cost
•Epoxy sealed version available
•20 Amp switching — single pole contacts
•Isolation spacing greater than 8mm
•UL Class B insulation system standard, Class F available
•UL, CUR file E44211
•TÜV file R50129286
GENERAL DATA
Life Expectancy Minimum operations
Mechanical 5 x 106
Electrical 5 x 104at 16 A 240 VAC Res.
2 x 104at 20 A 277 VAC Res.
Operate Time (typical) 8 ms at nominal coil voltage
Release Time (typical) 5 ms at nominal coil voltage
(with no coil suppression)
Dielectric Strength 5000 Vrms coil to contact
(at sea level for 1 min.) 1000 Vrms between open contacts
Insulation 1000 megohms min. at 20°C
Resistance 500 VDC 50% RH
Dropout Greater than 10% of nominal coil voltage
Ambient Temperature At nominal coil voltage
Operating -40°C (-40°F) to 90°C (194°F)
Storage -40°C (-40°F) to 130°C (266°F)
Vibration 0.062" DA at 10–55 Hz
Shock 10 g
Enclosure P.B.T. polyester
Terminals Tinned copper alloy, P.C.
Max. Solder Temp. 270°C (518°F)
Max. Solder Time 5 seconds
Max. Solvent Temp. 80°C (176°F)
Max. Immersion Time 30 Seconds
Weight 18.5 grams
COIL
Power
At Pickup Voltage 270 mW
(typical)
Max. Continuous
Dissipation 1.9 W at 20°C (68°F) ambient
Temperature Rise 34°C (61°F) at nominal coil voltage
Temperature Max. 130°C (266°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.
MECHANICAL DATA
AZ755
4/24/09W
Dimensions in inches with metric equivalents in parentheses. Tolerance: ± .010"
RELAY ORDERING DATA
COIL SPECIFICATIONS ORDER NUMBER*
Nominal Coil Must Operate Max. Continuous Coil Form A Form C
VDC VDC VDC Resistance (SPST) (SPDT)
5 3.6 9.4 47 ±10% AZ755–1A–5D AZ755–1C–5D
6 4.3 11.4 69 ±10% AZ755–1A–6D AZ755–1C–6D
9 6.5 17.4 155 ±10% AZ755–1A–9D AZ755–1C–9D
12 8.6 22.8 275 ±10% AZ755–1A–12D AZ755–1C–12D
18 13.0 27.9 620 ±10% AZ755–1A–18D AZ755–1C–18D
24 17.3 45.7 1100 ±15% AZ755–1A–24D AZ755–1C–24D
48 34.6 89.0 4400 ±15% AZ755–1A–48D AZ755–1C–48D
60 43.2 115.3 6880 ±15% AZ755–1A–60D AZ755–1C–60D
110** 79.3 170.5 22900 ±15% AZ755–1A–110D AZ755–1C–110D
*Add suffix “E” for epoxy sealed version, suffix “A” for AgSnO (silver tin oxide) contacts. Substitute “1B” in place of “1A” or “1C” to indicate 1 Form B
contact arrangement. Add suffix “F” for Class F.
**110V coil not TÜV approved.
HARDWARE ORDERING DATA
DESCRIPTION ORDER NUMBER DESCRIPTION ORDER NUMBER
Socket ST484–U1 Retainer ST482–2
Form A and C
Form A
WIRING DIAGRAM
PC BOARD LAYOUT
Form C
43
56
8
1
876 5
1 2 3 4
1.14
(29)
.160 ± .015
(4.2 ± .4)
1.06
(26.8)
.51
(13)
0.015
(0.38)
.08
(2.1)
(Form B & C only)
.590
(15)
.197
(5) .197
(5)
.295 (7.5)
.05 DIA. (1.3)
(6 places Form A & B)
(8 places Form C)
Terminal No.
1,2,4,5,7,8
3,6
Dimensions Tol.: ± 0.005 (0.13)
0.018 (0.457) x 0.038 (0.965)
0.011 (0.279) x 0.038 (0.965)
Viewed toward terminals
Viewed toward terminals
(Form A and C only)
Form B
8
1
76
2 3
.500
(12.7)
1.22
(30.9)
1.28
(32.5)
.177
(4.5)
MAX
.354
(9.0)
.366
(9.3)
.125 DIA
(0.5)
.197
(5.0)
.295
(7.5)
.590 (15)
.197
(5.0)
.059 DIA
(1.5)
.118
(3.0)
.414
(10.5)
HARDWARE
RETAINING CLIP
Viewed toward terminals
ST484-U1
ST482-2
1.217
(30.9)
1.004
(26.5)
.138
(3.5)
.158
(4.0)
