WST1215-125 DC Power Relay Contactor

Advantage

> Clean production environment

> Full automatic testing with various tests

> Standardized production process with trained workers

> Low failure ratio and 24-month warranty

> Strong R&D and engineering support

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Main features

· 125AContact switching capability

· It has a set of normally open contacts

· Coil power consumption is：20～26WMin～Max

· Scope of application：Power on / off control of DC power supply systems such as oil pump startup,

battery truck,electric forklift, electric winch, electric vehicle, excavator, automobile air conditioner, etc。

· Product features：Small size, high breaking capacity, sealing protection, and can adapt to harsh

service environment。

Application

Matters needing attention

1.When installing the contactor, the tightening torque of the main circuit wiring screw and nut is 6 ~ 8N. M; The tightening torque of control circuit wiring screw and nut is 1 ~ 1.5N. m。
2. The driving circuit power of the product coil must be greater than or equal to the product coil power, otherwise the cutting capacity of the product will be reduced。
3. The voltage continuously applied to the coil shall not exceed the maximum allowable voltage. Otherwise, the abnormal heating of the coil will shorten the service life of the insulation layer。

Example：WST1215-125/24；Indicates: a group of normally open contacts, sealed DC contactor with current of 125A and coil voltage of 24V

Model	WST1215-125/□
Contact form	1D (SPST-NO)
Contact material	Silver alloy
Contact load (resistive load)	125A
Contact pressure drop	≤80mV@125A
Insulation resistance	Min. 100MΩ at 500VDC
Dielectric Strength	1000VAC 50 HZ/60 HZ (1 minute) Leakage current less than 1mA
Instantaneous maximum current	375A ,≤1S
Pull in time(ms)	Max. 30mSec
Release time(ms)	Max. 50mSec.
Pull-in voltage (DC V)	≤70% US
Release voltage (DC V)	5～40% US
Operating ambient temperature	-25℃~+55℃
Mechanical life	≥200,000 second
Degree of protection	IP67
Working system	Short term working system
Vibration	（10～200）Hz acceleration ≤3.5g
To attack	（60） Times / minute acceleration 6g

Coil parameters

Model	Coil voltage (V)	Coil operating voltage（V）	Pull-in voltage（V）	Release voltage（V）	Starting current（A）	Power waste（W）
WST1215-125/□	12	0.85US～1.1US	≤70%	5～40%	≤2.2	22～26
	24				≤1.1	22～26
	48				≤0.6	22～26
	60				≤0.45	22～26
	72				≤0.38	22～26

Dimension（mm）	Tolerance grade not noted（mm）
0～30	±0.3
30～60	±0.5
60～100	±1
＞100	±2