KW4-3Z-3 Micro Limit Switch Lever Arm & 3 x terminals 250VAC/125VDC 5A - Pack of 10

Key Features

• Package includes 10 individual micro limit switches.
• Model: KW4-3Z-3
• Electrical Rating: 5A at 125V/250VAC
• Contact Configuration: Single Pole Double Throw (SPDT)
• Terminal Type: 3-pin (COM, NO, NC)
• Actuator: Hinge lever arm
• Lever Length: 28 mm
• Switch Body Dimensions: 20 mm x 10 mm x 7 mm

Replaces / Cross-Reference Part Numbers

• KW4-3Z-3

Compatibility & Fitment

• General purpose switch for various electrical control circuits and automation projects.
• Suitable for controlling the position of moving parts in appliances, machinery, and plant equipment.
• Commonly used as end-stop or limit switches in 3D printers, CNC machines, and other mechanical devices.

When to Replace

• Switch fails to actuate or release mechanically.
• Intermittent or unreliable electrical connection.
• Continuity test fails for Normally Open (NO) or Normally Closed (NC) positions.
• Visible signs of heat damage, arcing, or physical breakage.

Installation Tips

• Disconnect power to the circuit before installation or service.
• Confirm that the circuit's voltage and amperage do not exceed the switch's 5A, 250V rating.
• Connect wiring to the appropriate COM, NO, or NC terminals based on your application's requirements.
• Ensure the switch body is securely mounted and the lever arm is positioned for correct actuation.