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The Autonics PSN40‑20DN is a rectangular inductive proximity sensor with a 20 mm sensing distance, NPN output, and IP67 protection.
đź“Ś Product Overview
- Manufacturer: Autonics
- Model: PSN40‑20DN
- Series: PSN Series (rectangular inductive sensors)
- Type: Inductive proximity sensor
- Sensing Side Size: 40 mm frame size
- Sensing Distance: 20 mm (±10%)
- Standard Target: 60 × 60 × 1 mm iron plate
- Response Frequency: 100 Hz
- Indicator: Red LED (operation indicator)
- Material: Heat‑resistant ABS housing
- Protection Structure: IP67 (dust‑tight, water‑resistant)
⚡ Electrical Specifications
- Power Supply: 12–24 VDC (operating range 10–30 VDC)
- Wiring Type: DC 3‑wire
- Output Type: NPN, Normally Open (NO)
- Control Output: ≤200 mA
- Residual Voltage: Max. 1.5 V
- Current Consumption: ≤10 mA
- Dielectric Strength: 1500 VAC, 50/60 Hz for 1 minute
- Insulation Resistance: ≥50 MΩ (at 500 VDC)
- Protection Circuits: Surge, overcurrent, reverse polarity
🚀 Key Features
- Front sensing type for easy alignment with targets.
- 20 mm long sensing distance for reliable detection of larger metal objects.
- Excellent durability with ABS housing and IP67 rating.
- Noise immunity ensures stable operation in industrial environments.
- Non‑contact detection reduces mechanical wear compared to limit switches.
🛠️ Common Applications
- Automation systems: Detecting presence/position of metal parts.
- Material handling: Monitoring conveyor objects.
- Machine tools: Position sensing of moving components.
- Packaging machinery: Metal detection for safety and control.
🔎 Related Models in the PSN Series
| Model | Sensing Distance | Output Type | Notes |
|---|---|---|---|
| PSN40‑20DN | 20 mm | NPN NO | Standard rectangular model |
| PSN40‑20DP | 20 mm | PNP NO | PNP output version |
| PSN40‑20DN2 | 20 mm | NPN NC | Normally Closed output |
| PSN40‑20DP2 | 20 mm | PNP NC | PNP NC version |
| PSN30‑10DN | 10 mm | NPN NO | Smaller 30 mm frame size |
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