Technical Specification

General:

• Product Type: Limit Switch (Miniature / Compact)
• Model: ME-8108
• Actuator Type: Rotary Adjustable Roller Lever Arm (Can typically be rotated 90° left and 90° right)
• Reset Type: Automatic Reset
• Mounting Type: Surface Mount (often with standard mounting hole spacing)
• Body Material: Often a combination of plastic (for the top cover) and metal (for the base/housing).

Electrical Characteristics:

• Contact Configuration: 1 Normally Open (1NO) + 1 Normally Closed (1NC) – often described as SPDT (Single Pole Double Throw) or Form C.
• Double Break: Yes (contacts break at two points for enhanced reliability).
• Rated Current: 5A (Amperes)
• Rated Voltage (AC):
  • 250V AC (Resistive Load) @ 5A
  • Some sources also list 380V AC @ 0.8A (inductive load or different rating standard)
• Rated Voltage (DC):
  • 115V DC (Resistive Load) @ 0.4A
  • Some sources also list 220V DC @ 0.16A (inductive load or different rating standard)
• Operating Speed: 0.5 mm/sec to 50 m/sec
• Operating Frequency:
  • Mechanical: 120 operations/minute
  • Electrical: 30 operations/minute
• Contact Resistance: 15mΩ max (initial)
• Insulation Resistance: 100MΩ min (at 500 VDC)
• Dielectric Strength:
  • 1,000 VAC, 50/60 Hz for 1 minute (between non-continuous terminals)
  • 2,000 VAC, 50/60 Hz for 1 minute (between each terminal and non-current carrying metal part, and between each terminal and ground)
• Terminal Type: Screw Terminals

Mechanical & Environmental:

• Protection Rating (IP Code): IP65
  • 6: Dust-tight (complete protection against dust ingress)
  • 5: Protected against low-pressure jets of water from any direction
  • This implies it is dustproof, oil-tight, and water-resistant. (Note: Some listings mistakenly show IP66, but IP65 is more consistently reported by datasheets.)
• Service Life (Durability):
  • Mechanical: 10,000,000 operations minimum
  • Electrical: 300,000 operations minimum (at rated load)
• Ambient Operating Temperature: -15°C to +70°C (some sources may list slightly different ranges, e.g., -5°C to +65°C, but -15°C to +70°C is commonly cited)
• Humidity: 95% RH max (non-condensing)
• Vibration Resistance (Malfunction Durability): 10 to 55 Hz, 1.5mm double amplitude
• Shock Resistance:
  • Mechanical Durability: Approx. 1000 m/s² (approx. 100G’s)
  • Malfunction Durability: Approx. 300 m/s² (approx. 30G’s)
• Dimensions: Typically around 67 x 67 x 24 mm (sizes can vary slightly by specific manufacturer sub-variant)
• Weight: Approximately 90-180 grams (varies based on specific build materials)

Certifications:

• CE (Commonly listed)
• UL (Often listed)
• CCC (Often listed for the Chinese market)
• RoHS Compliant