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[Lifetime Warranty] ME-8108 Momentary Roller Lever Arm Limit Switch for CNC Mill Laser Plasma - 250VAC/5A | Pack of 5

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ME-8108 Momentary Roller Lever Arm Limit Switch

Key Features

  • Model: ME-8108
  • Actuator Type: Adjustable rotary roller lever arm
  • Action Type: Momentary
  • Contact Configuration: 1 NC + 1 NO (1 Normally Closed, 1 Normally Open)
  • Voltage Rating: AC 250V
  • Current Rating: 5A
  • Terminal Type: Screw terminals
  • Construction: Double-circuit design with a built-in basic switch mechanism
  • Dimensions (L*W*H): 12.3 x 5 x 2.8 cm (4.8 x 2 x 1.1 inches)
  • Lever Arm Length: Approximately 10 cm (3.9 inches)

Replaces / Cross-Reference Part Numbers

  • TZ-8108
  • WLCA2
  • WLCA2-2
  • LSA1K2008E
  • ZCK-Y35H
  • D4B-1112N
  • WL-K12ME-QL
  • VL-G12-1A25

Compatibility & Fitment

  • Used for object positioning and detection in automated control systems
  • Commonly installed on machinery such as CNC mills, laser cutters, and plasma cutting equipment
  • Suitable for applications in robotics, assembly lines, and industrial automation where a physical limit needs to be detected

When to Replace

  • Switch fails to actuate or release consistently
  • Intermittent or unreliable electrical contact
  • Visible physical damage to the housing, lever arm, or roller
  • Internal components are shorted or non-responsive

Installation Tips

  • Always disconnect power from the machine before installation or servicing.
  • Ensure the supply voltage and current do not exceed the switch's AC 250V, 5A rating.
  • Mount the switch securely so that the target object makes firm and consistent contact with the roller lever.
  • Adjust the lever arm for the correct actuation point and travel distance.
  • Verify all wiring is correct and connections to the screw terminals are secure.
  • PRECISION CONTROL

    PRECISION CONTROL

    BlueStars's Limit switches feature a Rotary Adjustable Level Arm which can rotate 180° with a Roller for flexible moving.
  • DURABLE BUILD

    DURABLE BUILD

    It is equipped with high-quality aluminum alloy and reinforced plastic shell for superior conductivity and high reliability.
  • EASY TO INSTALL

    EASY TO INSTALL

    Installing a Limit Switch is easy for any DIY handyman and takes only 30 seconds.
  • SAVING SOLUTION

    SAVING SOLUTION

    BlueStars brings DIY solutions to help you deal with any trouble.
CONNECTING LIVES, ENERGIZING MOMENTS

CONNECTING LIVES, ENERGIZING MOMENTS

BlueStars - #1 source of high-quality electrical parts
Color
Blue / Black / Silver
Material
Resin / Plastic / Metal
Contact Configuration
1NC + 1NO (SPDT)
Rated Voltage
AC 250V 5A / DC 115V 0.4A
Actuator Type
Rotary Adjustable Roller Lever (Momentary)
Lever Arm Length
~100mm / 3.9 inches (adjustable)
Roller Dimension
18 x 7mm (D x T)
Body Size (L x W x T)
64 x 28 x 25mm
Total Size with Lever (L x W x H)
~125 x 40 x 27mm (~4.9 x 1.6 x 1.1 inches)
Mounting Hole Distance
56 x 21mm | Screw: M5
Operating Force
Max 800g (7.84N) / Min Return 60g (0.59N)
IP Rating
IP66 (Waterproof / Dustproof)
Item Weight
~90g

FAQ

This switch is rated for 5A at 250V AC or 0.4A at 115V DC. It features a double-circuit limit switch mechanism with a 1NC (normally closed) and 1NO (normally open) contact configuration.
The ME-8108 is a versatile momentary switch commonly used in industrial automation, CNC machinery, conveyor belt systems, and DIY robotics. It is ideal for monitoring position, speed, or presence of mechanical components.
This model features an adjustable roller lever arm. The arm can be rotated 90 degrees horizontally, allowing for flexible installation in tight spaces or specific mechanical tracking applications.
The switch housing is constructed from a combination of metal and plastic, designed to be dust-proof and water-resistant. However, it is not rated for full submersion; ensure it is shielded if used in areas with heavy direct spray or extreme weather exposure.
Installation requires a small Phillips or flat-head screwdriver for the terminal screws and a mounting wrench for the base bolts. The mounting holes are pre-drilled for standard M5 screws.