Meishuo Malc 16A 277VAC 50A 12V High Power Latching Relay

Due to the wide application of our products and our favorable market position, we strive to sell our car meter relay, 12v led flasher relay, Quick terminal and Flange relay to more countries and bring our high-quality products and services to every corner of the world. We strive to deliver excellent products to customers at the right time at reasonable prices. Our company adheres to the concept of "quality of technology as the root, customer needs-based", and is committed to the development and research of high-tech products with the orientation of science and technology and market orientation. Through our own brand advantages and technology content, combined with the market demand of different regions in the world, we deliver our products all over the world. We have been committed to providing customers with high-quality products. We will conduct serious research and testing on the products before and after production to ensure product satisfaction.

1 Product Introduction for 40 ampere welding machine relay

Product feature:

◆High contact Load capacity: 40A

◆ 2500VAC&4000VAC is valid for isolating strength between contact and coil

◆ Coil isolation level Class F

◆ Contacts forms NO,NC&SPDT

◆ Dust-proof&Sealed type

◆ In accordance with RoHS-Directive

◆ Size: 32*27.2*20mm

◆ It Can replace Tyco's similar relay with model No. T90/T9A/ORU

Designation code for this model, choose correct model as you want 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

Our Welding Machine Relay has a beautiful appearance and adopts a high-quality shell with high strength, high temperature resistance, corrosion resistance and good flame retardancy. Silver alloy contact has good conductivity and long service life. Reliable pull in, which can effectively reduce open circuit and short circuit. We focus on the production of relays for many years, fully automated production equipment and professional R & D personnel to escort the quality.

Our Welding Machine Relay has authoritative certification and reliable quality, which has achieved our good reputation in the industry today. It has 180 degree insulation grade enamelled wire, which will not age when powered on for a long time. The silver alloy contact is impact resistant, high voltage resistant, and does not adhere to excessive current. The nylon shell is resistant to high temperature and can be carried outdoors and indoors.

2 Figure chart of 40 ampere welding machine 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 circuit of 40 ampere welding machine relay

Outline Dimensions

Bottom View Layout

Wiring Diagram(Bottom View)

Engineering Data

4.FAQ

Q: What's your tem of the delivery?

A: Our ordinary delivery term is FOB Ningbo. We also accept EXW, CFR, CIF, DDP, DDU etc. We'll offer you the shipping charges and you can choose the one which is the most convenient and effective for you.

Q: Can I request to change the form of packaging and transportation?

A: Yes, We can change the form of the packaging and transportation according to your request, but you have to bear their own costs incurred during this period and the spreads.

We standardize the management, guarantee the quality of products and services, and strictly strengthen the management of all aspects of Meishuo Malc 16A 277VAC 50A 12V High Power Latching Relay's production. We provide all-round three-dimensional service for the new and old customers, so we are favored by the majority of customers. The company has a strong technical force and a well-trained technical team, and regularly invites professional talents for training and guidance.

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