AC Inductive Proximity Sensor (20-250VAC) Technical Summary

1. Product Variants and Identification

• Models include shielded and non-shielded types, with or without LED indicators.
• Part numbers: IBN-M1204A-A7MN3, IBN-M1204A-B7MN3, IBS-M1202A-A7MN3, IBS-M1202A-B7MN3, and variants ending with VN2.
• Switching types available: Normally Open (N.O.), Normally Closed (N.C.), or changeable between N.O. and N.C.
• Wiring diagrams referenced on pages 013 to 015 (not included here).

2. Electrical Specifications

• Operating voltage range: 20-250 VAC.
• No load current: less than 1.8 mA.
• Maximum load current: 400 mA continuous, with surge current up to 5 A for 20 ms.
• Leakage current: less than 1.8 mA.
• Minimum load current: 5 mA.
• Voltage drop: less than 8 VAC at 400 mA load.
• Switching frequency: up to 25 Hz.
• Response time: 10 ms on/off.
• Switching hysteresis: less than 10% of sensing distance.
• Repeat accuracy: better than 1.0% of sensing distance.
• Temperature drift: less than 15% of sensing distance.

3. Mechanical and Material Specifications

• Housing material: Nickel plated brass for metal parts; POM or PBT for plastic parts.
• Active face material: Not explicitly specified but implied to be compatible with inductive sensing.
• Dimensions: M12×1 thread, diameter 12 mm, length approximately 60 mm.
• Weight: Approximately 32 g for micro connector versions, approximately 77 g for cable versions.
• Connection types: Micro connector or Φ2M cable (4.0 mm diameter, 3x0.25 mm² wires).

4. Environmental and Protection Features

• Protection rating: IP67, suitable for dust-tight and water immersion up to 1 meter.
• Operating temperature range: -25°C to +70°C.
• Short circuit protection: Not available.

5. Performance and Usage Notes

• Switching distance: 4 mm for shielded sensors, 2 mm for non-shielded sensors.
• Switching hysteresis and repeat accuracy ensure reliable detection within specified tolerances.
• LED indicators available on some models for operational status.
• Surge current capability allows brief high current loads without damage.

6. Additional Information

• Wiring diagrams and detailed installation instructions are referenced but not included.
• Manufacturer website: www.wicksensor.com.

Summary: These AC inductive proximity sensors are designed for reliable detection of metallic objects within short distances (2-4 mm), with robust electrical and mechanical specifications suitable for industrial environments. They offer multiple switching configurations, protection against environmental factors, and options for LED indication and connection types.