NT73-3, 5-20A micro signal pcb relay

 

♦ Current: 5A,7A,10A,12A,20A

♦ Contact Form: 1A,1B,1C

DC3v-48v

 

>Model:NT73-3

SPST   4Pins DC12V  PCB relay-NT73-3A

SPDT   5Pins   DC24V  PCB relay -NT73-3C

>Application:

Office equipment relay;Teaching audition equipment relay;

Armamentarium relay;Measuring instrument relay;

Safety alarm relay;Street-light relay;Emulator relay;

>Size:19.5*16*17.1MM;

>Contact arrangement:

1A(1H) SPSTNO          4Pins;

1B(1D) SPSTNC           4Pins;

1C (1Z) SPDT(B-M)     5Pins;

>Max.switching current:20A;

>Max.switching Voltage:250VAC;

>Max.switching power:3840VA;

>Contact Loading:5A,10A/250VAC;7A,16A/277VAC;12A,20A/125VAC;

>Voltage available:5V,9V,12V,24V,36V,48V;

Product Detail
5A 7A 10A 12A 20A 1A 1B 1C NT74-3 300

5A 7A 10A 12A 20A 1A 1B 1C NT74-3 300

NT73-3, 5A/7A/10A/12A/20A micro signal pcb relay

 

Features

•  Superminiature, High power.

•  Low coil power consumption.

•  PC board mounting.

• Suitable for household appliances, automation system, electronic equipment,
 instrument and meter, communication facilities and remote control facilities.

 

Ordering information

NT73-3       C     S     20     DC12V      0.36      F
     1                2       3        4              5               6          7
1 Part number NT73-3、                NT73-3L
2 Contact arrangement A:1A;                 B:1B;              C:1C
3 Enclosure S: Sealed type;                      D: Dust cover
4 Contact current 5:5A;           7:7A;         10:10A;         12:12A;         20:20A
5 Coil rated voltage(V) DC:3,5,6,9,12,18,24,36,48
6 Coil power consumption 0.36:0.36W;         0.45:0.45W;         0.6:0.6W;          0.8:0.8W
7 Resistance heat Class NIL:130℃;          F:155℃

 

Contact data

Contact Arrangement 1A(SPSTNO)、1B(SPSTNC)、1C(SPDT(B-M))
Contact Material AgCdO AgSnO2
Contact Rating (resistive) 5A,10A/250VAC 7A,16A/277VAC 12A,20A/125VAC TV-8
Motor load:NO:1HP 250VAC NC:1/2HP 250VAC
Max. Switching Power 4450VA
Max. Switching Voltage 250VAC                                                Max. Switching Current:20A
Contact Resistance or                     Voltage drop ≤100mΩ                                                Item 4.12 of IEC 61810-7
Operational life Electrical 100,000 times                                                                                                   5×10,000 times(1C)                       Item 4.30 of IEC 61810-7
Mechanical 10,000,000 times                                 Item 4.31 of IEC 61810-7

CAUTION: 1.For the intermediate current, it only applies to the room temperature.

Coil parameter

Dash numbers Coil voltage VDC Coil resistance Ω±10%           Pickup          voltage VDC(max)(75% of rated voltage )           release          voltage VDC(min)(10% of rated   voltage) Coil power consumption W Operate Time ms Release Time ms
Rated  Max.
003-360
005-360
006-360
009-360
012-360
018-360
024-360
036-360
048-360
3
5
6
9
12
18
24
36
48
3
5
6
9
12
18
24
36
48
25
69
100
225
400
900
1600
3600
6400
2.25
3.75
4.50
6.75
9.00
13.5
18.0
27.0
36.0
0.3
0.5
0.6
0.9
1.2
1.8
2.4
3.6
4.8
0.36 ≤15 ≤10
003-450
005-450
006-450
009-450
012-450
024-450
048-450
3
5
6
9
12
24
48
3.9
6.5
7.8
11.7
15.6
31.2
62.4
20
55.6
80
180
320
1280
5120
2.25
3.75
4.50
6.75
9.00
18.0
36.0
0.3
0.5
0.6
0.9
1.2
2.4
4.8
0.45 ≤15 ≤10
003-600
005-600
006-600
009-600
012-600
024-600
048-600
3
5
6
9
12
24
48
3.9
6.5
7.8
11.7
15.6
31.2
62.4
15
42
60
135
240
960
3840
2.25
3.75
4.50
6.75
9.00
18.0
36.0
0.3
0.5
0.6
0.9
1.2
2.4
4.8
0.60 ≤15 ≤10

CAUTION:
1.The use of any coil voltage less than the rated coil voltage will compromise the operation of the relay.
2.Pickup and release voltage are for test purposes only and are not to be used as design criteria.

 

 

Dash numbers Coil voltage VDC Coil resistance Ω±10%        Pickup        voltage VDC(max)(75% of rated       voltage )    Release    voltage VDC(min)(10% of rated voltage) Coil power consumption W Operate Time   ms Release Time  ms
Rated  Max.
003-800
005-800
006-800
009-800
012-800
024-800
048-800
3
5
6
9
12
24
48
3.9
6.5
7.8
11.7
15.6
31.2
62.4
11
31
45
101
180
720
2880
2.25
3.75
4.50
6.75
9.00
18.0
36.0
0.3
0.5
0.6
0.9
1.2
2.4
4.8
0.80 ≤15  ≤10

 

Operation condition

 Insulation Resistance  250MΩ min (at 500VDC)  Item 7 of IEC 60255-5
 Dielectric Strength
 Between contacts
 Between contact and coil
                                                                                   50Hz 1000V
 50Hz 2500V Surge  Voltage:4kV(NT73-3) 
                                                       Item 6 of IEC 60255-5
 Item 6 of IEC 60255-5
 Shock resistance  100m/s²  11ms  IEC 68-2-27 Test Ea
 Vibration resistance  10Hz~55Hz double amplitude 1.0mm  IEC 68-2-6 Test Fc
 Terminals strength  5N  IEC 68-2-21 Test Ua1
 Solderability  235℃±2℃ 3s±0.5s  IEC 68-2-20 Test Ta method 1
 Ambient Temperature  -40℃~85℃
 Relative Humidity  93% (at 40℃)  IEC 68-2-3 Test Ca
 Mass  10g

 

Safety approvals

Safety approval UL&CUR VDE CQC
Load 16A/277VAC 10A/250VAC TV-8
NO:1HP(16AFLA)125VAC,250VAC 20A/125VAC
NC:1/2HP(9.8AFLA)125VAC,250VAC 20A/125VAC
NO:10A/250VAC

NC:7A/250VAC

10A/250VAC

 

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