WLCA12-55LD

Ingress Protection:	IP67 - Dust Tight, Waterproof
Mechanical Life:	15,000,000 Cycles
Electrical Life:	750,000 Cycles
Operating Position:	--
Operating Temperature:	-10°C ~ 80°C
Overtravel:	30°
Differential Travel:	12°
Pretravel:	15°
Release Force:	227gf
Operating Force:	1360gf
Features:	Sealed - Hermetically, Status Indicator
Series:	WL
Termination Style:	Screw Terminal
Mounting Type:	Chassis Mount
Actuator Type:	Side Rotary, Adjustable Roller
Voltage Rating - DC:	30V
Voltage Rating - AC:	125V
Current Rating:	10A (AC), 6A (DC)
Switch Function:	On-Mom
Circuit:	SPDT (DB/DM)
Part Status:	Obsolete
Packaging:	Bulk

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Snap Action, Limit Switches: WLCA12-55LD Application Field and Working Principle

Snap action, limit switches such as WLCA12-55LD provide reliable connections between electrical circuits with mechanical linkage that prevents breakage and contact failure due to vibration, drift or thermal expansion. Snap action, limit switch devices consists of two components – the main switch and a contact mechanism – and use mechanism such as a lever and a plunger.

Application field

WLCA12-55LD limit switches are widely used in a variety of applications in numerous industries such as home appliances, automotive, HVAC, food processing and more. Limit switches are widely deployed in industrial automation systems and process control. They are used in the control panels of automatic production lines, in safety control devices on construction and agricultural machines and in remote control systems of water supply and industrial processes.

Working Principle

The WLCA12-55LD limit switch functions by connecting or disconnecting two or more electrical circuits based on the position of a lever arm or plunger. The pressure on the lever arm or plunger provides a physical contact between two metal contacts. This contact allows an electrical current to flow from one circuit to the other. When the limit switch is in non-activated or non-operating position, the metal contacts are kept apart with the pressure factor almost zero.When the mechanical arm or plunger is pressed, the contact closes and current flows through the contacts. This action also operates a position indicator that shows the switch’s current state of operation. When the switch is in a closed or operating state, the indicator is at its on position; when it’s in the open or non-operating position, the indicator is at its off remark. The power switch can also be opened or closed using a solenoid, a device using an electric current to activate a magnetic field. The magnetic field attracts an armature which is linked to a contact switch. When the magnetic field is activated, the armature closes the contact switch.

Conclusion

The snap action, limit switch is an effective and reliable electrical circuitry connection device. The WLCA12-55LD limit switch is suitable for a wide range of applications across various industries. Its simplicity and mechanical reliance also makes it a low-maintenance and economical option for relaying electrical signals.

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