24 Volt Relay 8A Relay PCB Relay Relays General Purpose

While providing satisfactory 40a 220v ac relay, Small Relay 12v, relay power switch and services for the market, we also actively promote energy conservation and emission reduction, and protect the ecological environment. Our company has always been based on the concept of people-oriented, respect for knowledge, respect for talent, to provide growth opportunities. We firmly believe that 'do not believe, do not stand, do not be honest', we take integrity as the essence, technology as the strength, quality as the premise.

1 Product Overview of 40 ampere 120v ac relay

Product Features :

◆High load switching capability 40A

◆2500VAC is avaliable for insulating strength between contact and coil

◆ Coil isolation level Class F

◆ Contact form 1A,1B,1C available

◆ Dust-proof&Sealed type

◆ In deference to RoHS-Directive

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

◆Good shockproof and Vibration Resistance

Defining instruction

 

NB903  E  -220  S  -S  -A  L  T-105℃  Φ3.1  X

 1      2   3   4  5   6   7    8        9   10

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: L: Height of shell 20.5mm None:Height of shell 28.5mm    8: T-105℃: ambient temperature 105℃   none: normal ambient temperature

9: Φ3.1: Quick terminal hole dia. 3.1mm None: Quick terminal hole dia. 1.6mm   10:  X: customer used code

Overview

Our 120v Ac 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. Every detail is designed carefully, focusing on quality, making products carefully and using them for a long time. Reliable pull in, which can effectively reduce open circuit and short circuit. Our relays are cost-effective. We have complete models and technical support.

Our 120v Ac Relay adopts high-quality composite silver contacts with strong conductivity and large carrying current. According to customer needs, we can customize the materials suitable for resistive load, inductive load or capacitive load contacts. It has instantaneous action characteristics and is used for overload and short-circuit protection of generators, transformers and transmission lines as starting elements.

2 Figure form of 40 ampere 120v ac relay

Contact Rating
Contact Form	1A,1B,1C
Contact Material	AgCdO AgSnO2
Contact Load Capacity	NB903			NB903E
	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: 105
		Machanical	10 7

Safety Certification
Approval	CQC	UL
Load	40A 240VAC 30VDC	40A 277VAC 1.5HP 240VAC, TV-5

Coil Rating
Coil Voltage		Coil Resistance Ω±10%	Pick up (VDC) Max. (75% of Rated Voltage)	Drop out (VDC) Min.(10% of Rated Voltage)
Rated	Max.
24	31.2	120	18	7
110	143	2360	83	33
120	156	3040	90	36
220	286	13490	165	66
240	312	13490	180	72
277	360	15000	208	83

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;	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.34.0g
Package		Sealed;Dust-proof type

3 Size and electrocircuit of 40 ampere 120v ac relay

Outline Dimensions

TOP View Layout

Wiring Diagram(Bottom View)

Engineering Data

4.FAQ

Q: How your quality guarantee?

A: We have 100% quality guarantee to customers. We will be responsible for any quality problem.

Q: What is your packing way?

Normally we pack relay in to plastic box or tube, then packed in master box.

We have advanced processing equipment and testing equipment, can provide high-quality services, and are committed to becoming an excellent 24 Volt Relay 8A Relay PCB Relay Relays General Purpose supplier in China. In the new era, we will take leading the industry development and serving the national strategy as our mission. We don't just provide simple services, but work hard and grow together with our partners.

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