Metal Proximity Switch PR12-4DN 3 Wire NO NPN Sensor For Machinery And Metallurgy, 4mm Detection Distance, Built In Power Safeguard Circuit, Durable Industrial Grade Proximity Sensor

PR12-4DN Inductive Proximity Sensor with 4mm Range
✔️ 3-wire NO NPN output, DC10-30V, 200mA, 4mm metal detect

The PR12-4DN is a metal proximity switch that uses inductive sensing to detect metal targets without contact. It’s built for harsh industrial environments and is commonly used in machine tools, metallurgy, chemical processing, textile and printing lines for limit, counting, and positioning controls.

✅ 3-wire normally open, NPN output, DC10-30V supply, up to 200mA
✅ 4mm metal-detection distance via inductive chip
✅ Built-in power safeguard circuit (reverse polarity and overcurrent)
✅ Industrial-grade construction, black housing for durable use
✅ Ideal as a limit, counter, or position sensor in automation systems

💡 What is a metal proximity switch and how is it used in automation? This handy device detects metal targets without contact, enabling reliable limit, counting, and positioning in automation systems. - Non-contact inductive sensing detects metal targets within 4mm range - 3-wire NO NPN output with DC10-30V supply and 200mA load - Built-in safeguards against reverse polarity and overcurrent - Common in machine tools, metallurgy, chemical, textile, and printing industries

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