Meishuo Customized Advanced Design Solid State Relay with 1 Year Warranty

Our ambitious goal is to become a flagship in the 12V 50A Relay, 24v contactor relay, automotive relay 12v 50a industry and make outstanding contributions to society. Each of our staff will serve every friend with enthusiasm and professional attitude. We can design, develop and manufacture the products according to the requirements of customers, so as to make the customers satisfied. We polish every detail of the product to create a work of art with a calm heart and give the product vitality. In the process of development, the company continues to innovate and innovate to enrich the corporate culture and technical content.

1 Product Survey of pcb 40a 12v relay

Product Features :

◆High contact Load ability: 40A

◆ 2500VAC&4000VAC is acceptable for insulative strength between contact and coil

◆ Coil insulation rank Class F

◆ Contacts forms NO,NC&SPDT

◆ Dust-proof&Sealed type

◆ Agree with RoHS-Directive

◆ Measurement: 32*27.2*20mm

◆ It Can replace Songchuan's similar relay with model No.

Definition method for this relay, choose correct model according to your purchase intention pls.

NB90  E  -12  S  -S  -A  4  W  4KV  L  T-105℃   X

  1    2   3   4  5    6  7  8    9   10    11     12

1:  Relay Model    2: NO max load 30A, none: 40A   3: Coil rated voltage  4: package S: Sealed, D: dust proof.

5:  Contact Material: S:AgSnO2  C:AgCdO  6:  Contact Form:   A:Normally Open  B:Normally Close  C:SPDT(NO&NC)

7:  Pin Form: A4:Normally open(4 pins), A5:Normally open(5 pins); B4:Normally close(4 pins), B5:Normally colse(5 pins);  C5:SPDT(5 pins), C6:SPDT(6 pins). 

8: W: white None: black  9:  4KV: Dielectric Strength between contact and coil 4000VAC  none: Dielectric Strength between contact and coil 2500VAC

10: L: coil power consumption 600mW, none: 900mW    11: T-105℃: ambient temperature 105℃   none: normal ambient temperature

12:  X: customer used code

Overview

40a 12v Relay is an electronic control device. It has control system (also known as input circuit) and controlled system (also known as output circuit). It is usually used in automatic control circuit. In fact, it is an "automatic switch" that uses small current to control large current. Therefore, it plays the role of automatic regulation, safety protection, conversion circuit and so on.

40a 12v Relay is an automatic switching element with isolation function. It is widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment. It is one of the most important control elements. We have always adhered to the corporate philosophy of "credit first, quality first, service first, customer first", and achieved a good reputation in the product industry by virtue of stable and reliable resources, advanced and mature technology research and development, safe and high-quality operation services, and honest and satisfactory after-sales service. 

2 Figure diagram of pcb 40a 12v relay

Contact Rating
Contact Form	1A,1B,1C
Contact Material	AgCdO AgSnO2
Contact Load Capacity	NB90			NB90E
	40A 240VAC/30VDC 40A 277VAC 1.5HP 1HP 240VAC TV-5 TV-15			30A/20A 240VAC/30VDC 30A 277VAC 1HP 1/2HP 240VAC TV-5
Switching Power Max.		1200W 11000VA
Switching Voltage Max.		30VDC/277VAC
Switching Current Max.		40A
Contact Resistance Max.		50mΩ(1A ,24VDC)
Life expectancy		Electrical	40A: 2x104 30A: 2x104
		Machanical	10 7

Safety Certification
Approval	CQC	TUV	UL
Load	30A/40A 240VAC 30VDC	30A/40A 240VAC 30VDC	30A/40A 277VAC 1.5HP 1HP 1/2 HP 240VAC TV-5 TV-15

Coil Rating
900mw							600mw
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.						Rated	Max.
5	5	6.5	28	3.75	0.5		3	3	3.9	15	2.25	0.3
6	6	7.8	40	4.5	0.6		5	5	6.5	42	3.75	0.5
9	9	11.7	90	6.75	0.9		6	6	7.8	60	4.5	0.6
12	12	15.6	160	9	1.2		9	9	11.7	135	6.75	0.9
15	15	19.5	250	10.25	1.5		12	12	15.6	240	9	1.2
18	18	23.4	360	13.5	1.8		15	15	19.5	375	10.25	1.5
24	24	31.2	640	18	2.4		18	18	23.4	540	13.5	1.8
48	48	62.4	2560	36	4.8		24	24	31.2	960	18	2.4
110	110	143	13445	82.5	11		48	48	62.4	3840	36	4.8

Technical Rating
Insulation Resistance		Min.1000MΩ(500VDC)	IEC 60255-5
Dielectric Strength	Between Contacts	1500VAC, 50/60Hz 1min; Max 4000 VAC	IEC 60255-5
	Between Coil&Contact	2500VAC 50/60Hz Min; (4000VAC Min without Pin #6,when required)	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℃;﹣55℃～105℃
Relative Humidity		85% RH , 40℃	IEC 68-2-3 test Ca
Weight		Approx.26.0g
Package		Sealed;Dust-proof type

3 Measurement and electrocircuit of pcb 40a 12v relay

Outline Dimensions

Bottom View Layout

Wiring Diagram(Bottom View)

Engineering Data

4.Frequently Asked Question

Q: Which shipping way can you provide?

A: We can provide shipping by sea, by air and by express.

Q: Do you have a lab in your company.

A: Yes we have a lab.

We take quality as the foundation, highly focus on product quality, and provide you with professional solutions for Meishuo Customized Advanced Design Solid State Relay with 1 Year Warranty. Give us a opportunity to show you our professionalism and enthusiasm. We serve the purpose of quality and excellence, heart management, continuous innovation, and strive to meet customer needs.

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