M18 AC Proximity Sensor 8mm NO – Sibass 2-Wire Inductive Switch
M18 Inductive Proximity Sensor 8mm AC NO – Sibass 2-Wire
The Sibass M18 inductive proximity switch is a rugged, non-contact sensor designed for detecting metallic objects at a range of up to 8 mm. Operating on AC voltage (typically 90–250 V AC) with a normally open (NO) output, this 2-wire sensor simplifies installation by combining power and signal in a single cable pair. Ideal for industrial automation, assembly lines, and safety interlock applications where reliable metal sensing is critical.
Key Specifications
| Specification | Value |
|---|---|
| Sensor Type | Inductive proximity |
| Sensing Distance | 8 mm |
| Operating Voltage | 90–250 V AC (50/60 Hz) |
| Output Type | Normally open (NO) |
| Connection | 2-wire (series with load) |
| Diameter | M18 (18 mm threaded barrel) |
What You Can Build With This
- Industrial conveyor belt object presence detection
- Machine safety guards and interlock sensing
- Automated counting of metal parts on production lines
- Position feedback for pneumatic or hydraulic cylinder end stops
Compatibility
This AC-powered sensor is built for industrial control systems and interfaces directly with PLC inputs, relay coils, contactors, or small solenoid valves. It is not intended for low-voltage DC circuits such as Arduino or Raspberry Pi without an intermediate relay or optocoupler. The sensor’s M18 threaded body fits standard mounting brackets and industrial fixtures.
Wiring Notes
The 2-wire design requires the sensor to be wired in series with the load, similar to a mechanical limit switch. Ensure the load current (typically 5–200 mA) falls within the sensor’s switching capacity. No separate power supply is needed—the sensor draws its operating power from the AC line through the load when in the off state, so a minimum load (e.g., a relay coil) must be present.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino or other microcontroller boards?
Not directly, because it operates on 90–250 V AC and switches AC loads. To interface with 5 V DC logic, you must use an isolated relay module or optocoupler circuit driven by the sensor’s output.
Can it detect non‑ferrous metals like aluminum or copper?
Yes, but with reduced sensing range. The 8 mm specification is for a standard mild steel target; for aluminum or copper, the detection distance may drop to approximately 4–6 mm depending on the material and thickness.
What is the maximum switching current?
The sensor typically handles 5–200 mA AC. Ensure the connected load (relay, contactor, lamp) operates within this range. For larger loads, add an external contactor or power relay.
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items