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50A Miniature High Power Relay
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50A Miniature High Power Relay

You can rest assured to buy 50A Miniature High Power Relay from us. We look forward to cooperating with you, if you want to know more, you can consult us now, we will reply to you in time!

◉ Heavy contact load
◉ 50A switching capability
◉ Low coil power consumption 0.9W
◉ High dielectric strength type available
◉ Plastic sealed and flux proofed types available
◉ Strong anti-shock, anti-vibration and high reliability
◉ RoHS Compliant

Model:NT90 50A

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Product Description

As the professional manufacturer, we would like to provide you 50A Miniature High Power Relay. And we will offer you the best after-sale service and timely delivery. Sincerely look forward to cooperating with you in the near future.

50A contact switching capability.
The temperature rise is <80K under 70℃ 
Terminal width 1.8mm and 3.3mm available.
PC board mounting available.

PV power, UPS power, charger, electric car, electric equipment,air conditioner, etc.

Ordering Information

1 Part number:NT90
2 Terminal:R:without Pin 6; Nil:with Pin 6; W:3.3mm
3 Load:50:50A
4 Contact arrangement:A:1A; C:1C
5 Enclosure:S: Wash tight; E: Flux proof
6 Coil rated voltage(V):DC:5,6,9,12,15,18,24,48
7 Contact material:S: AgSnO₂
8 Resist heat class:F:155℃
9 Coil Power(W): 9:0.9W; NIL:1.5W,2.7VA

1 ) Wash tight plastic case with knock off nib. 

Contact Data

2 Remove vent nib after soldering and cleaning. 


Coil Parameter


Insulation Resistance

1000MΩ min (at 500VDC)

Item 4.11 of IEC 61810-7

Dielectric Strength

Between Contacts

Between Contact and Coil

50Hz 1500V

50Hz 2500V 4000V(without pin 6)*

Item 4.9 of IEC 61810-7

Item4.9 of IEC 61810-7

Shock Resistance

Functional: 98m/s² 11ms

Item 4.26 of IEC 61810-7

Destructive: 980m/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


Item 4.24 of IEC 61810-7

Ambient Temperature



Relative Humidity

5% to 85%

Item 4.16 of IEC 61810-7



Item 4.7 of IEC 61810-7

Please contact with the sales personnel for the 4000VAC version.

Safety Approvals


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