Single Pole 10A /250VAC Power Relay
● 1 Form A and 1 Form C contact arrangement● Plastic sealed and flux proofed types available
● Dielectric strength of 4000 V between coil and contacts
● RoHS Compliant
Model:NT73-3
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Product Description
Features
Superminiature, High power.
Low coil power consumption.
PC board mounting.
Suitable for automation control, telecommunication equipment, household electrical appliances and machinery electrical facilities.
Ordering Information
1 Part number: NT73-3
2 Contact arrangement A:1A B:1B C:1C
3 Enclosure: S:Wash tight NIL:Flux proof
4 Contact current 5:5A 7:7A 10:10A 12:12A 15:15A 20:20A
5 Coil rated voltage(V): DC:3,5,6,9,12,18,24,36,48
6 Coil power 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 | AgSnO2 | ||
| Contact Rating(Resistive) |
5A,10A/250VAC; 7A,16A/277VAC;12A,20A/125VAC; 15A/250VAC(1A) TV-8 |
||
|
Motor Load NO:1HP(AFLA)125VAC,250VAC 20A/125VAC NC:1/2HP(AFLA)125VAC,250VAC 20A/125VAC |
|||
| Max. Switching Power | 4450VA | ||
| Max. Switching Voltage | 277VAC | Max. Switching Current: 20A | |
| Contact Resistance | ≤100mΩ | Item4.12 of IEC61810-7 | |
| Operational Life | Electrical | 105 5×104(1C) 1×104(15A/250VAC 85℃ ) | Item 4.30 of IEC 61810 -7 |
| Mechanical | 1×107 | 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% |
Pick-up voltage VDC(max) (75%of rated voltage ) | Drop-out voltage VDC(min) (10% of rated voltage) | Coil power W | Operate time ms | Release time ms | |
| Rated | Max. | |||||||
| 003-360 | 3 | 3.9 | 25 | 2.25 | 0.3 | 0.36 | ≤15 | ≤10 |
| 005-360 | 5 | 6.5 | 69 | 3.75 | 0.5 | |||
| 006-360 | 6 | 7.8 | 100 | 4.50 | 0.6 | |||
| 009-360 | 9 | 11.7 | 225 | 6.75 | 0.9 | |||
|
012-360 |
12 |
15.6 |
400 |
9.00 |
1.2 | |||
| 018-360 | 18 | 23.4 | 900 | 13.5 | 1.8 | |||
| 024-360 | 24 | 31.2 | 1600 | 18.0 | 2.4 | |||
| 036-360 | 36 | 46.8 | 3600 | 27.0 | 3.6 | |||
| 048-360 | 48 | 62.4 | 6400 | 36.0 | 4.8 | |||
| 003-450 | 3 | 3.9 | 20 | 2.25 | 0.3 | 0.45 | ≤15 | ≤10 |
| 005-450 | 5 | 6.5 | 55.6 | 3.75 | 0.5 | |||
| 006-450 | 6 | 7.8 | 80 | 4.50 | 0.6 | |||
| 009-450 | 9 | 11.7 | 180 | 6.75 | 0.9 | |||
| 012-450 | 12 | 15.6 | 320 | 9.00 | 1.2 | |||
| 024-450 | 24 | 31.2 | 1280 | 18.0 | 2.4 | |||
| 048-450 | 48 | 62.4 | 5120 | 36.0 | 4.8 | |||
| 003-600 | 3 | 3.9 | 15 | 2.25 | 0.3 | 0.60 | ≤15 | ≤10 |
| 005-600 | 5 | 6.5 | 42 | 3.75 | 0.5 | |||
| 006-600 | 6 | 7.8 | 60 | 4.50 | 0.6 | |||
| 009-600 | 9 | 11.7 | 135 | 6.75 | 0.9 | |||
|
012-600 |
12 |
15.6 |
240 |
9.00 |
1.2 | |||
| 024-600 | 24 | 31.2 | 960 | 18.0 | 2.4 | |||
| 048-600 | 48 | 62.4 | 3840 | 36.0 | 4.8 | |||
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 ) | Drop-out voltage VDC(min) (10% of rated voltage) | Coil power W | Operate time ms | Release time ms | |
| Rated | Max. | |||||||
| 003-800 | 3 | 3.9 | 11 | 2.25 | 0.3 | 0.80 | ≤15 | ≤10 |
| 005-800 | 5 | 6.5 | 31 | 3.75 | 0.5 | |||
| 006-800 | 6 | 7.8 | 45 | 4.50 | 0.6 | |||
| 009-800 | 9 | 11.7 | 101 | 6.75 | 0.9 | |||
| 012-800 | 12 | 15.6 | 180 | 9.00 | 1.2 | |||
| 024-800 | 24 | 31.2 | 720 | 18.0 | 2.4 | |||
| 048-800 | 48 | 62.4 | 2880 | 36.0 | 4.8 | |||
Characteristics
| Insulation Resistance | 250MΩ min (at 500VDC) | Item 7 of IEC 61810-7 |
| Dielectric Strength |
|
|
| Between Contacts | 50Hz 1000V | Item 4.9 of IEC 61810-7 |
| Between Contact and Coil | 50Hz 2500V Surge Voltage:4kV | Item 4.9 of IEC 61810-7 |
| Shock Resistance | 98m/s² 11ms | Item 4.26 of IEC 61810-7 |
| Vibration Resistance | 10Hz~55Hz Double amplitude 1.5mm | Item 4.28 of IEC 61810-7 |
| Terminals Strength | 5N | Item 4.24 of IEC 61810-7 |
| Ambient Temperature | -45℃~85℃ | |
| Relative Humidity | 5% to 85% | Item 4.16 of IEC 61810-7 |
| Mass | 11.5g | Item 4.7 of IEC 61810-7 |
Safety Approvals
| Safety approval | UL&CUR | TüV | 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:15A/250VAC |
NO:10A/250VAC NC:7A/250VAC |
10A/250VAC |
Dimensions(mm)
CAUTION
In case of no tolerance shown in outline dimension: outline dimension ≤1mm tolerance should be ±0.2mm outline dimension >1mm and ≤5mm, tolerance should be ±0.3mm; outline dimension >5mm, tolerance should be ±0.4mm.
Reference Data
