ZE-QA277-2

Ingress Protection:	IP60 - Dust Tight
Mechanical Life:	10,000,000 Cycles
Electrical Life:	500,000 Cycles
Operating Position:	--
Operating Temperature:	-10°C ~ 80°C
Overtravel:	0.235" (6.0mm)
Differential Travel:	0.016" (0.4mm)
Pretravel:	0.157" (4.0mm)
Release Force:	170gf
Operating Force:	570gf
Features:	--
Series:	ZE
Termination Style:	Screw Terminal
Mounting Type:	Chassis Mount
Actuator Type:	Lever, Roller
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	15A (AC), 500mA (DC)
Switch Function:	On-Mom
Circuit:	SPDT
Part Status:	Active
Packaging:	Bulk

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Snap Action, Limit Switches: ZE-QA277-2 Application Field and Working Principle

Snap action, limit switches are small electromechanical devices that detect the presence or absence of an object. ZE-QA277-2 is a type of snap action limit switch designed for a variety of applications. This article will provide an overview of the ZE-QA277-2’s application field and working principle.

Application Field

The ZE-QA277-2 is a cost-effective solution for a wide range of applications. It is suitable for industrial, medical, telecom, building automation and lighting control applications. This snap switch can also be used in automotive, heavy duty, and aerospace applications.The ZE-QA277-2 has a 7/16 inch operating bar length. It has a maximum actuation force of 3lbs and features a no-gap design that helps to optimize E-stop performance. The switch is UL and CSA approved and is IP54 rated for dust and water ingress protection.The ZE-QA277-2’s applications include limit switches, rotary switch actuators, door interlocks, HVAC systems, process automation, access control, and other applications that require detection of a presence/absence.

Working Principle

The ZE-QA277-2 is a snap action switch that uses a mechanical sliding contact to open and close a circuit. When an applied force is applied to the switch, it will move from the normal to the operated positions, and the contact will open and close.When the switch is in the normal position, there is a gap between the contact and the base. When the force is applied to the switch, the contact moves towards the base. This motion causes the contact to close and an electrical connection is established. When the force is released, the contact springs back to its normal position and the electrical connection is broken.The ZE-QA277-2 is an attractive choice for applications due to its small size, low cost and ease of installation. It is an ideal choice for low-force switch applications, where reliability and repeatability are important factors.

Conclusion

The ZE-QA277-2 snap action, limit switch is a cost-effective limit switch designed for a variety of applications. It has a 7/16 inch operating bar length, a maximum actuation force of 3lbs and a no-gap design that helps to optimize E-stop performance. This switch is UL and CSA approved and is IP54 rated for dust and water ingress protection. The ZE-QA277-2 is an attractive choice for applications due to its small size, low cost and ease of installation and is ideal for low-force switch applications.

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