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50 Ampere Flange Cover Relay

50 Ampere Flange Cover Relay

1. Product Presentation of 50 ampere flange cover relay Product Features ◆High load switching capability 50A ◆2500VAC/4000VAC is avaliable for dielectric strength between contact and coil ◆ Coil insulation grade Class F ◆ Contact form 1A,1B,1C available ◆ Dust-proof&Sealed type ◆ Complies...

Description

1. Product  Presentation  of  50 ampere flange cover relay  

Product Features

◆High load switching capability 50A

◆2500VAC/4000VAC is avaliable for dielectric strength between contact and coil

◆ Coil insulation grade Class F

◆ Contact form 1A,1B,1C available

◆ Dust-proof&Sealed type

◆ Complies with RoHS-Directive

◆ Dimension: 50.2*27*28mm & 32*27.2*20mm

◆ It Can replace Omron’s similar relay with model No. G7G/G8P

◆ It Can replace Hongfa’s similar relay with model No. HF105F-4

 

Definition way: see following introduction pls.

 

NB903  -12  S  -S  -A  L  T-105℃  Φ3.1  X

 1      2   3   4   5   6   7        8    9   

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

1:  Relay Model  2: Coil rated voltage  3: package S: Sealed, D: dust proof.

4:  Contact Material: S:AgSnO2  C:AgCdO  5:  Contact Form:   A:Normally Open  B:Normally Close  C:SPDT(NO&NC)

6: L: Height of shell 20.5mm None:Height of shell 28.5mm   7: T-105℃: ambient temperature 105℃   none: normal ambient temperature

8: Φ3.1: Quick terminal hole dia. 3.1mm None: Quick terminal hole dia. 1.6mm   9:  X: customer used code


2. Information sheet of  50 ampere flange cover relay


Contact Rating

Contact Form

1A、1B、1C

Contact Material

AgCdO  AgSnO2

Contact Load Capacity

NB903 

 NO: 50A/240VAC,30VDC   50A 277VAC 40A 240VAC, 30VDC, TV-15  NC:  40A 277VAC  

Switching Power Max.

12000VA

Switching Voltage Max.

30VDC/277VAC

Switching Current Max.

50A

Contact Resistance Max.

50mΩ(1A ,24VDC)

Life expectancy

Electrical

105

 

Machanical

10 7

 

Safety Certification

Approval

CQC 

TUV

UL

Load

NO/NC:50/40A             240VAC 30VDC

40A 240VAC 30VDC

NO/NC:50/40A  277VAC TV-15

 

Coil Rating

900mw

1200mw

No.

Coil Voltage

Coil Resistance      Ω±10%

Pick up (VDC) Max. (75% of Rated Voltage)

Drop out (VDC) Min.(10% of Rated Voltage)

No.

Coil      Voltage

Coil Resistance      Ω±10%

Pick up (VDC) Max. (75% of Rated Voltage)

Drop out (VDC) Min.(10% of Rated Voltage)

Rated

Max.

RatedMax.

005

5

6.5

28

3.75

0.5

005

5

6.5

28

3.75

0.5

006

6

7.8

40

4.50

0.6

006

6

7.8

40

4.50

0.6

009

9

11.7

90

6.75

0.9

009

9

11.7

90

6.75

0.9

012

12

15.6

160

9.00

1.2

012

12

15.6

160

9.00

1.2

015

15

19.5

250

10.25

1.5

015

15

19.5

250

10.25

1.5

018

18

23.4

360

13.50

1.8

018

18

23.4

360

13.50

1.8

024

24

31.2

640

18.00

2.4

024

24

31.2

640

18.00

2.4

048

48

62.4

2560

36.00

4.8

048

48

62.4

2560

36.00

4.8

110

110

143

13445

82.50

11

110

110

143

13445

82.50

11


Technical Rating

Insulation Resistance

Min.1000MΩ(500VDC)

IEC 60255-5

Dielectric Strength

Between Contacts

1500VAC, 50/60Hz 1min

IEC 60255-5

Between Coil&Contact

2500VAC/4000VAC   50/60Hz Min;  

IEC 60255-5

Operate Time

≤15ms

Release Time

 ≤10ms

Shock Resistance

Operation extremes 10G      Damage limits 100G

IEC 68-2-27 test Ea

Vibration Resistance

10Hz~55Hz double amplitude 1.5mm

IEC 68-2-6 test Fc

Ambient Temperature

  

﹣55℃~85℃ 

Relative Humidity


 85%  RH , 40℃

IEC 68-2-3 test Ca

Weight

 Approx.33.0g

Package

 Sealed;Dust-proof type


3. Size and electrocircuit  of  50 ampere flange cover relay


11
Outline Dimensions   
12
TOP View Layout   
13

 Wiring Diagram(Bottom View)    

14

Engineering Data


4. Frequently Asked Question

 

Q: Can we cooperate with Baocheng ask for agent or exclusive agency?

A: It depend on your annual order quantity and other condition, we can talk together.

 

Q: Are there any special requirements for OEM purchases?

A. Yes, we require proof of trademark registration in order to print or emboss your trademark onto the product or packaging.

 


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