Automotive Spdt 25A 5pin Waterproof Auto Car Relay PCB Relay

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1 Product Introduction of 40 ampere clutch relay

Product feature:

◆ Small size, heavy contact load, capable of standing strong current of 40A at 14VDC.

◆ PC board mounting.

◆ Suitable for automatic control facilities and automobile application etc.

◆ Both European 11mm pole distance and American 8mm pole distance available.

◆ It automotive flasher relay

Definition for this relay.

Name rule :

BM940 - A - S

1             2   3

1 Model No.

2 Contact Form: A:1A;B:1B;C:1C

3 Package: S-Sealed None--Flux tight type

2 Figure sheet of 40 ampere clutch relay

Contact Rating
Contact Form			1A(1H) (SPSTNO),1B(1D) (SPSTNC),1C(1Z) (SPDT(B-M))
Contact Material			AgSnO2
Contact Load Capacity			1A: 40A/14VDC; 1B: 30A/14VDC; 1C NO: 40A/14VDC, NC: 30A/14VDC
Switching Power Max.			560W 2400VA
Switching Voltage Max.			75VDC 380VAC	Switching Current Max.:	40A
Contact Resistance Max.			≤30mΩ		IEC 61810-7
Life expectancy	Electrical		10 5		IEC 61810-7
	Machanical		10 7		IEC 61810-7

Coil Rating
No.	Coil Voltage(VDC)		Coil Resistance Ω±10%	Pick up (VDC) Max. (70% of Rated Voltage)	Drop out (VDC) Min.(10% of Rated Voltage)	Power (W)	Operate Time (ms)	Release Time (ms)
	Rated	Max.
1	6	7.8	19	4.2	0.6	1.9	≤5	≤3
2	9	11.7	42.6	6.3	0.9
3	12	15.6	90	8.4	1.2	1.6
4	18	23.4	202.5	12.6	1.8
5	24	31.2	360	16.8	2.4

Technical Rating
Insulation Resistance	Min.100MΩ(500VDC)	IEC 60255-5
Dielectric Strength Between Contacts	50Hz 500V	IEC 60255-5
Dielectric Strength Between Coil&Contact	50Hz 750V	IEC 60255-5
Shock Resistance	200m/s 2 11ms	IEC 68-2-27 test Ea
Vibration Resistance	10Hz～40Hz, double amplitude 1.27mm	IEC 68-2-6 test Fc
Leading-out Terminal Strength	10N	IEC 68-2-21 test Ua1
Weldability	235℃±2℃ 3s±0.5s	IEC 68-2-20 test Ta way1
Ambient Temperature	﹣40℃～125℃
Relative Humidity	85%(40℃)	IEC 68-2-3 test Ca
Weight	Approx. 19g,Open type:21g

3 Size and circuit of 40 ampere clutch relay

Outline Dimensions

Bottom View PCB Layout

Wiring Diagram ( Bottom View)

Engineering Data

4.Frequently Asked Question

Q:How many square meters of your factory?

A: More than 3000 square meter.

Q:What main software are you using in your product drawing?

A: We use the most advanced industry designing and developing software, like PRO/E CREO

If you are interested in our Automotive Spdt 25A 5pin Waterproof Auto Car Relay PCB Relay, please feel free to contact us, and we look forward to creating a future with you. We insist on the principle of "seeking truth from facts and striving for perfection", and after a long period of practice. Our company is based on honesty and has established a good corporate image and reputation in the same industry.

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