1. Product Overview: PEPPERL+FUCHS NBB15-U1-Z2 Inductive Proximity Sensor
The PEPPERL+FUCHS NBB15-U1-Z2 is a heavy-duty inductive proximity sensor designed for non-contact detection of metallic objects in demanding industrial environments. Featuring an M30x1.5 stainless steel housing (IP67/IP69K-rated), this sensor excels in harsh conditions such as dust, moisture, vibrations, and extreme temperatures (-25°C to +70°C). With a detection range of 15 mm for ferrous targets, it provides precise feedback for automation systems requiring long-range sensing. The sensor operates on a 10–30V DC supply and delivers an NPN normally open (NO) output, ensuring seamless integration with PLCs, controllers, and industrial networks. Its ATEX/IECEx certification makes it suitable for hazardous areas, while its rugged design supports heavy machinery, automotive manufacturing, and outdoor applications.
2. Key Technical Specifications
- Detection Range: 15 mm (for mild steel targets).
- Output Type: NPN, NO (3-wire, 2 m PUR cable).
- Supply Voltage: 10–30V DC (±10%).
- Current Consumption: ≤15 mA.
- Switching Frequency: 50 Hz.
- Housing Material: Stainless steel (1.4404/316L).
- Protection Class: IP67/IP69K (dust/water resistance), IK08 (impact 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 NBB15-U1-Z2 is widely used in automotive manufacturing to detect large components like engine blocks, chassis parts, or robotic arm positions. In heavy industries, it monitors hydraulic cylinder movements in construction equipment and verifies metal sheet alignment in steel rolling mills. Its ATEX/IECEx certification allows deployment in explosive environments such as oil refineries and chemical plants for valve status monitoring. The sensor also supports material handling systems for pallet detection on conveyors, agricultural machinery for implement positioning, and mining equipment exposed to extreme dust and vibration.
4. Competitive Advantages and Unique Features
- Extended Detection Range: 15 mm sensing capability for large or distant metallic targets.
- Extreme Durability: Stainless steel housing resists corrosion, high-pressure washdowns, and mechanical shocks.
- Safety Compliance: ATEX/IECEx certification ensures safe operation in Zone 2/22 hazardous areas.
- High Immunity: Stable performance in environments with electromagnetic interference (EMI) or temperature fluctuations.
- Low Maintenance: Contactless operation eliminates mechanical wear and reduces lifecycle costs.
5. Functional Capabilities and Operational Benefits
The sensor provides reliable object detection with a response time of ≤2 ms, critical for high-speed automation processes. Its NPN output triggers alarms or machine actions upon target detection, enhancing operational safety and efficiency. The IP67/IP69K and IK08 ratings ensure uninterrupted performance in wet, dusty, or high-vibration environments. By minimizing false triggers and maintenance needs, it optimizes production throughput and reduces total cost of ownership (TCO). The rugged design and certifications make it a future-proof solution for Industry 4.0 applications, delivering precision and reliability in smart manufacturing systems.
| Parameter | Specification |
| Product Type | Inductive Proximity Sensor (Cylindrical, Heavy-Duty) |
| Model Number | NNBB15-U1-Z2 |
| Detection Principle | Inductive (for metallic objects) |
| Sensing Distance | 15 mm (nominal, Sn = 15 mm) |
| Operating Voltage | 10–30 V DC |
| Output Type | PNP, Normally Open (NO) |
| Output Current | ≤ 200 mA |
| Switching Frequency | Up to 1,000 Hz |
| Hysteresis | ≤ 10% of sensing distance |
| Housing Material | Stainless steel (V4A/AISI 316L) with PBT sensing face |
| Protection Rating | IP68/IP69K (dustproof, waterproof, high-pressure/jet-resistant) |
| Ambient Temperature | –40°C to +85°C (–40°F to +185°F) |
| Connection Type | M12 × 1 connector (4-pin) or integral cable option |
| Cable Length | 2 m standard (shielded PUR cable) |
| LED Indicator | Status LED (yellow) for output state |
| Response Time | ≤ 0.5 ms |
| Certifications | CE, cULus, ATEX/IECEx (optional, confirm variant), RoHS, REACH |
| Mounting | Flush or non-flush mounting (adjustable) |
| Object Material | Ferrous and non-ferrous metals (e.g., steel, aluminum, brass) |
| Special Features | - Extreme environmental resistance (chemicals, high pressure)
- Reverse polarity protection
- Short-circuit and overload protection |
Packaging & Shipping
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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