230V AC Sensor

The 230V AC Proximity Sensor (AC Switch) you described is a two-wire AC-powered inductive or capacitive proximity sensor designed to function like a mechanical limit switch but without physical contact. Here’s a breakdown of its key features and applications:

Typical Applications:

  • Replacement for mechanical limit switches in industrial automation.

  • Detection of metallic/non-metallic objects (depending on sensor type).

  • Control of relays, contactors, or PLC inputs in AC circuits.

  • Harsh environments (IP68 rating makes it suitable for wet/dusty conditions).

Important Considerations:

  • Load Compatibility: Ensure the connected load (PLC/relay) operates within the 200 mA limit.

  • Leakage Current (<2 mA): Some sensitive PLC inputs may still detect this as a “false ON”; a bypass resistor may be needed.

  • No Short-Circuit Protection: Use an external fuse if required.

Key Specifications:

  1. Operating Principle:

    • Works like a two-wire AC switch (similar to a mechanical limit switch).

    • The load (PLC, relay, contactor, etc.) is connected in series with the sensor.

    • When the sensor detects a target, it allows current to flow (ON state); otherwise, it blocks current (OFF state, leakage <2mA).

  2. Electrical Ratings:

    • Voltage Range: 50–250V AC

    • Switching Current: 200 mA (max)

    • Max Load Current: <400 mA

    • Voltage Drop: <6V at 200 mA

    • Leakage Current (OFF state): <2 mA

  3. Sensing Performance:

    • Sensing Distance: 1mm–50mm (adjustable based on model)

    • Hysteresis: 5–10% of sensing distance

    • Repeatability: 5–10% of sensing distance

    • Switching Frequency: 50 Hz (suitable for standard AC applications)

  4. Construction & Protection:

    • Housing Material: Chrome-plated brass (durable & corrosion-resistant)

    • Protection Class: IP68 (dustproof & waterproof)

    • Short Circuit Protection: No (external fuse recommended)

    • Polarity Protection: Yes (since it’s AC, polarity doesn’t matter)

  5. Mounting & Wiring:

    • Mounting Options: Flush or non-flush (depending on application)

    • Cable: 2-core, 2 meters standard (custom lengths available)

    • Status Indicator: LED (for visual confirmation)