NT 74
NT74
R
Operation condition
Insulation Resistance
Dielectric Strength
Between contacts
Between contact and coil
Between contact sets
Shock resistance
Vibration resistance
Terminals strength
Solderability
Ambient Temperature
Relative Humidity
Mass
1000M
min (at 500VDC)
Item 7 of IEC 61810-5
Item 6 of IEC 61810-5
Item 6 of IEC 61810-5
Item 6 of IEC 61810-5
IEC68-2-27 Test Ea
IEC68-2-6 Test Fc
IEC68-2-21 Test Ua1
IEC68-2-20 Test Ta method 1
IEC68-2-3 Test Ca
50Hz 1000V 1min
50Hz 5000V 1min
50Hz 2500V 1min
functional: 980m/s
2
survival: NO:98m/s
2
NC:49m/s
2
10~55Hz double amplitude NO: 1.65mm
(no coil voltage) NC: 0.8mm
10N
260
5
3 0.5s
-40 ~85
35%~85% (at 40 )
8g
VDE
40019280
C
US
E169380
28.5 12.5 10.1
Features
Small size, light weight.
Low coil consumption.
PC board mounting.
Suitable for household electrical appliances, automation system, electrical equipment, instrument, meter
telecommunication facilities and remote control facilities.
Ordering Information
NT74 1C S 10 DC12V N G
1
2
3
4
5
6
7
4 Contact rating:1A,1C:8A,10A/250VAC 30VDC;
2A,2B,2C:5A/250VAC 30VDC
5 Coil rated voltage(V):DC:5,6,9,12,18,24,48,60
6 Contanct material: N: AgNi; S:AgSnO
2
7 Contact plating: Nil:Standard; G:Gold plated
1 Part number:NT74
2 Contact arrangement:1A:1A;1C:1C;C2:1C2;
2A:2A;2B:2B;2C:2C
3 Enclosure:S: Sealed type Z: Dust cover
Safety approvals
Safety approval
Load
UL&CUR
1A,1C,1C2:8A,10A/250VAC,30VDC
2A,2C:5A/250VAC,30VDC
VDE
8A/250VAC
Dimensions
10.1 0.2
0.398 0.008
28.5 0.2
1.122 0.008
12.5 0.2
0.492 0.008
mm /inch
Contact Data
Contact Arrangement
Contact Material
Contact Rating (resistive)
Max. Switching Power
Max. Switching Voltage
Contact Resistance or Voltage drop
Operational
life
Electrical
Mechanical
1A SPSTNO
2A
DPSTNO
AgNi AgSnO
2
1A,1C,1C2:8A,10A/250VAC,30VDC
2A,2B,2C:5A/250VAC,30VDC
1A,1C,1C2:300W 2500VA
2A,2B,2C:150W 1250VA
440VAC 125VDC
100m
10
5
10
7
Max. Switching Current:10A
Item 4.12 of IEC 61810-7
Item 4.30 of IEC 61810-7
Item 4.31 of IEC 61810-7
7.62
0.3
5- 1.3
0.051
3.2
0.126
1C
SPDT(B-M)) 1C2 SPDT(B-M)
2C DPDT(B-M)
3.4 0.2
0.134 0.008
7.62
0.30
2- 0.6
0.024
1.65
0.065
6-0.4 0.8
0.016 0.031
Dimension
3.2
0.126
7.62
0.3
5- 1.3
0.051
Coil Parameter
Dash
numbers
Coil voltage
VDC
Rated
5
6
9
12
18
24
48
60
Max.
6.5
7.8
11.7
15.6
23.4
31.2
62.4
78
Coil
resistance
10%
113
164
360
620
1295
2350
8000
12500
Pickup
voltage
VDC(max)
(70%of rated
voltage )
3.5
4.2
6.3
8.4
12.7
16.8
33.6
42
Release voltage
VDC(min)
(10% of rated
voltage)
0.5
0.6
Coil power
consumption
W
Operate
Time
ms
Release
Time
ms
18.9
0.744
18.9
0.744
5.08
0.200
1C
7.62
0.3
8- 1.3
0.051
18.9
0.744
3.2 3.2
0.126 0.126
7.62
1A
7.62
0.3
0.3
0.012
2B(DPSTNC)
005-220
006-220
009-230
012-230
018-250
024-250
048-290
060-290
6- 1.3
0.051
18.9
0.744
3.2
6- 1.3
0.051
22.1
0.870
0.22
10
5
0.126
3.2
0.126
0.9
1.2
1.8
2.4
4.8
6.0
0.3
0.23
10
5
1C2,2C
2B
Mounting (Bottom view)
2A
0.25
10
5
0.29
10
5
1A
1C
1C2
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.
2A
2B
Wiring diagram (Bottom view)
2C
NOTES 1).Dimensions are in millimeters.
2).Inch equivalents are given for general information only.
93
Ningbo Huaguan Electronics Corporation LTD.
94
微控制器 MCU
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