Limit Switch – Rotary Adjustable Roller Lever Arm, Momentary Reset, Waterproof, Brass Contact

📖 Description:

• The limit switch is a robust and precise device designed for industrial machinery and automation applications. It features a rotary roller lever arm for flexible and accurate position detection. The waterproof and wear-resistant housing ensures durability, while the brass contact guarantees reliable electrical connections for smooth operation.

🔧 Technical Specifications

• Contact Configuration: 1 NO + 1 NC (SPDT)
• Actuator Type: Adjustable rotary lever with roller (available in stainless steel or nylon)
• Rated Voltage & Current:
  • 125VAC: 5A (resistive), 1.5A (lamp load), 3A (inductive), 2A (motor load)
  • 250VAC: 5A (resistive), 1A (lamp load), 3A (inductive), 1.5A (motor load)
  • 8VDC to 30VDC: 5A (resistive), 3A (lamp load), 4–5A (inductive), 3A (motor load)
  • 125VDC: 0.4A
  • 250VDC: 0.2A
• Inrush Current: N.C.: ≤24A, N.O.: ≤12A
• Operating Speed: 0.5 mm/s to 50 cm/s
• Operating Frequency:
  • Mechanical: 120 operations/min
  • Electrical: 30 operations/min
• Contact Resistance: ≤25 mΩ (initial value)
• Insulation Resistance: ≥100 MΩ at 500V DC
• Dielectric Strength: 1000V AC between terminals of the same polarity
• Shock Resistance:
  • Mechanical durability: 1000 m/s² (approx. 100G)
  • Malfunction: 300 m/s² (approx. 30G)
• Ambient Temperature: -5°C to +65°C (no icing)
• Humidity: <95% RH
• Degree of Protection: IP65
• Mechanical Life: ≥10,000,000 operations
• Electrical Life: ≥500,000 operations
• Weight: Approximately 130–190g

⚙️ Features

• Compact Design: Approximately one-third the size of standard vertical limit switches, allowing for space-saving installations.
• Robust Construction: Features a strong zinc cast base and reinforced plastic outer shell, providing durability and resistance to oil, water, and pressure.
• Easy Wiring: The terminal section can be fully opened, facilitating straightforward wiring.
• Versatile Actuator Options: Available with stainless steel or nylon rollers to suit different application requirements.
• High Mechanical Strength: Designed to withstand mechanical shocks up to 1000 m/s² (approximately 100G’s).
• Reliable Performance: Built-in double-spring mechanism ensures smooth operation and extended mechanical life.​

🛠️ Applications

• Industrial Automation: Used for position detection and control in automated machinery.
• CNC Machines: Serves as end-stop or position limit detection in CNC milling and plasma cutting machines.
• Conveyor Systems: Detects the presence or position of items on conveyor belts.
• Safety Interlocks: Acts as a safety switch to prevent machinery operation under unsafe conditions.
• Elevators and Lifts: Monitors door positions and ensures safe operation.​