​1. Product Overview: PEPPERL+FUCHS NBN4-12GM40-Z0 Inductive Proximity Sensor​
The PEPPERL+FUCHS NBN4-12GM40-Z0 is a rugged inductive proximity sensor designed for non-contact detection of metallic objects in industrial automation applications. Featuring an M12x1 threaded stainless steel housing, this sensor provides reliable operation in harsh environments with resistance to dust, moisture, and mechanical stress. It detects ferrous and non-ferrous metals within a 4 mm range, delivering precise feedback for machine control systems. The sensor operates on a 10–30V DC supply and offers a PNP normally closed (NC) output configuration, ensuring compatibility with PLCs and industrial controllers. With an IP67 protection rating and an operating temperature range of -25°C to +70°C, it is ideal for demanding settings such as automotive manufacturing, material handling, and heavy machinery.

​2. Key Technical Specifications​

• ​Detection Range: 4 mm (for mild steel targets).
• ​Output Type: PNP, NC (3-wire, 2 m PVC cable).
• ​Supply Voltage: 10–30V DC (±10%).
• ​Current Consumption: ≤15 mA.
• ​Switching Frequency: 1 kHz.
• ​Housing Material: Stainless steel (1.4404/316L).
• ​Protection Class: IP67 (dust/water resistance).
• ​Operating Temperature: -25°C to +70°C.
• ​Certifications: CE, cULus, IECEx, ATEX (Ex II 3G Ex nA IIC T6 Gc).

​3. Industrial Applications and Use Cases​
The NBN4-12GM40-Z0 is widely deployed in automotive assembly lines for detecting piston positions, robotic arm movements, and conveyor belt part presence. In packaging machinery, it ensures accurate alignment of containers and verifies product positioning. The sensor’s ATEX/IECEx certification allows safe use in explosive atmospheres, such as chemical plants and oil refineries, for monitoring pumps, valves, and hazardous-area equipment. Additional applications include position verification in CNC machines, automated storage systems, and food processing lines requiring frequent washdowns. Its rugged design also supports agricultural and construction machinery exposed to extreme environmental conditions.

​4. Competitive Advantages and Unique Features​

• ​Durability: Stainless steel housing resists corrosion, vibration, and chemical splashes.
• ​High Immunity: Stable performance in environments with electromagnetic interference (EMI).
• ​Flexible Integration: PNP NC output configuration suits fail-safe control logic.
• ​Easy Installation: M12x1 threaded design enables quick mounting in tight spaces.
• ​Safety Compliance: ATEX/IECEx certification for use in Zone 2/22 hazardous areas.

​5. Functional Capabilities and Operational Benefits​
The sensor enables contactless detection, eliminating mechanical wear and reducing maintenance costs. Its normally closed (NC) output ensures system safety by triggering alarms or shutdowns when objects are out of range. Short-circuit and reverse polarity protection enhance reliability in high-vibration environments. With a fast response time (≤1 ms), it optimizes cycle times in high-speed automation processes. The extended temperature range and IP67 rating ensure uninterrupted operation in challenging conditions, supporting Industry 4.0 initiatives for smart, connected manufacturing systems.

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Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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