Features
Small size, light weight.
Low price reliable quality.
PC board mounting.
Suitable for household electrical appliance, automation system, electronic equipment, instrument, meter,
telecommunication facilities and remote control facilities.
Orderi ng Informa t i on
NT72 C S 10 DC12V 0.36
1 2 3 4 5 6
1 Part number：NT72（4459）、NT72-2
2 Contact arrangement：A:1A；B:1B；C:1C
3 Enclosure：S: Sealed type；NIL: Dust cover
4 Contact Current：5A,6A,10A,12A
5 Coil rated Voltage(V)：DC:3,5,6,9,12,18,24,48
6 Coil pow er consu mption：0.36:0.36W；0.45:0.45W；0.61:0.61W
Contact Data
Contac t Arrangement 1ASPSTNO1B(SPSTNC)1C(SPDT(B-M))
Contact Material AgCdO AgSnO2
Contact Rating (resistive) UL:5A,10A,12A/125VAC,28VDC; 10A/240VAC;6A/250VAC,28VDC
TüV : 6A/250VAC, 28VDC
Motor load : 1/3HP 120VAC；1/3HP 240VAC
Max. Switching Power 336W 2400VA
Max. Switching Voltage 110VDC 380VAC Max. Switching Current:15A
Contact Resistance or Voltage drop አ50m Item 3.12 of IEC255-7
Electrical 105 Item 3.30 of IEC255-7
Operation
life Mechanical 107 Item 3.31 of IEC255-7
Coil Parameter
Coil voltage
VDC
Dash
Numbers
Rated Max.
Coil
resistance
±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
003-360 3 3.9 25 2.25 0.3
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
0.36 74
003-450 3 3.9 20 2.25 0.3
005-450 5 6.5 56 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
018-450 18 23.4 720 13.5 1.8
024-450 24 31.2 1280 18.0 2.4
0.45
048-610 48 62.4 3800 36.0 4.8 0.61
74
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.
77
NT72(4459)&NT72-2
22.3×17.3×15
21.4×16.5×15 (NT72-2)
E158859 CH0077845
R9858273
www.dblectro.com
Operation co ndi ti on
Insulation Resistance 500M
min (at 500VDC) Item 7 of IEC255-5
Dielectric Strength
Between contacts
Between contact and coil 50Hz 1000V
50Hz 2500V 4000V(NT72-2) Item 6 of IEC255-5
Item 6 of IEC255-5
Shock resistance 100m/s2 11ms IEC68-2-27 Test Ea
Vibration resistance 10~55Hz double amplitude 1.5mm IEC68-2-6 Test Fc
Terminals strength 10N IEC68-2-21 Test Ua1
Solderability 2352 30.5s IEC68-2-20 Test Ta method 1
Ambient Temper ature -40~85
Relative Humidity 85% (at 40)IEC68-2-3Test Ca
Mass 11g
Qualification inspection:
Perform the qualification test as specified in the table of IEC2 55-19 -1 and min imum sam ple siz e 24.
Safety approvals
Safety approval UL& CU R TüVCCEE
Load
12A/125VAC 28 VDC
6A/250VAC
1/3HP 120VAC 240VAC
InsulationB-class F-c la ss
6A/250VAC 28VDC
10A/250VAC 28 VDC 5A/250VAC
Dimensions (Unit: mm)
Reference Data
NOTES 1).Dimensions are in millimeter.
2).Inch equivalents are given for general information only.
NT72(4459)& NT72-2
Dimensions
Wiring diagram
(Bottom views)
Mounting (Bottom views)
mm >àçÇá
0.4 0.016
0.5 0.020
0.6 0.024
0.9 0.035
1.2 0.047
2.0 0.079
2.1000 0.083
3.5 0.138
5.08 0.200
7.62 0.300
12.7 0.500
15 0.591
16.5 0.650
17.3 0.681
21.4 0.843
22.3 0.878
NT72-2
NT72
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