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Presente / Presents:
DB LECTRO Inc. 3755 Place Java, Suite 140, Brossard, Quebec, J4Y 0E4, Canada - T: 1-450-444-1424 / F: 1-450-444-4714 / www.dblectro.com
NHG RELAYS
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 IEC255-5 Item 6 of IEC255-5 Item 6 of IEC255-5 Item 6 of IEC255-5 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/s2 survival: NO:98m/s2 NC:49m/s2 10~55Hz double amplitude NO: 1.65mm (no coil voltage) NC: 0.8mm 10N 235 2 3 0.5s -40 ~85 35%~85% (at 40 ) 8g
VDE
40019280
C
US
E160644
06001015741
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
Qualification inspection:
Perform the qualification test as specified in the table of IEC255-19-1 and minimum sample size 24.
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:AgSnO2 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 1.122 0.008 28.5 0.2 0.398 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 AgSnO2 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 105 10
7
1C
SPDT(B-M)) 1C2 SPDT(B-M) 2C DPDT(B-M)
3.4 0.2 0.492 0.008
7.62 0.30
2- 0.6 0.024 1.65 0.065
6-0.4 0.8 0.016 0.031
Max. Switching Current:10A Item 3.12 of IEC255-7 Item 3.30 of IEC255-7 Item 3.31 of IEC255-7
7.62 0.3 5- 1.3 0.051 3.2 0.126 3.2 0.126
Dimension
5- 1.3 0.051 7.62 0.3
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.
Ningbo Huaguan Relay Corporation LTD.

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