Ingress Protection:	Splash Proof
Mechanical Life:	20,000,000 Cycles
Electrical Life:	--
Operating Position:	0.750" (19.1mm)
Operating Temperature:	-55°C ~ 85°C
Overtravel:	0.219" (5.6mm)
Differential Travel:	0.050" (1.3mm)
Pretravel:	--
Release Force:	14gf
Operating Force:	71gf
Features:	--
Series:	BZ
Termination Style:	Solder Lug
Mounting Type:	Chassis Mount
Actuator Type:	Lever, Straight
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	15A (AC), 500mA (DC)
Switch Function:	On-Mom
Circuit:	SPDT
Part Status:	Obsolete
Packaging:	Bulk

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Introduction

Snap action, limit switches are essential components of modern automation and control systems. The BZ-2RW855-S limit switch is an electromechanical device with an extremely robust design and a long life. It can work effectively in demanding industrial applications when used as safety devices interlocked with safety circuits. Its snap action contact provides repeatable accuracy and fast actuation with low power consumption.

Application Field

The BZ-2RW855-S is a versatile snap action limit switch with an extended operating range and a large number of features that make it suitable for a variety of industrial applications. It is used for machine control, line power monitoring, door control, safety systems, pump and motor control, alarm systems, motion control, and elevator control, among others.The snap action feature provides accurate switching with minimal power consumption and a long life. The heavy-duty construction allows for a range of actuator types, from lever-actuated to roller-operated, and makes the switch suitable for regular operating weather conditions and harsh industrial environments. The contact structure offers an especially wide range of actuation time, providing a smooth and consistent switch operation.

Working Principle

The BZ-2RW855-S is a snap action switch that uses a mechanical action with a lever and a pin to rapidly move the contact back and forth. The contact is held in the closed position by a spring and pushed by the lever when a force is applied. When the force is released, the contact snaps back to its original position.The BZ-2RW855-S is designed with an adjustable force release, which allows users to precisely adjust the force required to move the contacts. This feature ensures improved precision and repeatable performance in mission-critical applications.The BZ-2RW855-S is designed to be vibration and shock resistant, and can survive temperatures from -40°C to +85°C. The components are rated for UL or CSA applications, and are built with NEMA 4X/IP67-rated materials for protection from dust, moisture, and corrosive elements.

Conclusion

The BZ-2RW855-S is a ruggedly designed snap action limit switch with a wide range of features that make it suitable for demanding industrial applications. It is easy to install and offers adjustable force release for improved accuracy in mission-critical applications. Its contact structure provides a wide range of actuation time, while its rugged construction makes it suitable for use in different types of applications and in extreme weather conditions.

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