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440N-Z21SS2HN9 Sensor – Key Features
1. Sensor Type & Technology
- Inductive proximity sensor (detects metal objects without contact).
- Shielded design (flush-mountable for precise metal detection).
- High switching frequency (up to 1 kHz for fast-moving targets).
2. Detection Range & Performance
- 2 mm nominal sensing distance (Sn) for ferrous metals.
- Reduced sensing range for non-ferrous metals (e.g., aluminum, brass).
- Hysteresis: ≤ 10% of Sn (stable switching points).
3. Electrical Specifications
- Output Type: NPN Normally Open (NO) (HN9 suffix typically indicates NPN).
- Voltage Range: 10–30V DC (industrial standard).
- Current Load: ≤ 200 mA (short-circuit and reverse polarity protected).
- Response Time: ≤ 0.5 ms (ultra-fast for high-speed automation).
4. Mechanical & Environmental
- Housing: Stainless steel (SS2) for corrosion resistance.
- Thread Size: M12 x 1 mm (standard industrial threading).
- Protection Rating: IP67/IP69K (dustproof, waterproof, high-pressure washdown).
- Operating Temperature: –25°C to +70°C.
5. Special Features
- LED status indicator (power and output state).
- EMC immunity (resistant to electromagnetic interference).
6. Certifications & Approvals
- CE, cULus, IEC 60947-5-2 (industrial safety standards).
Model Number Decoding (440N-Z21SS2HN9)
- 440N: Series (inductive proximity sensor).
- Z21: Flush-mounted, shielded design.
- SS2: Stainless steel housing.
- HN9: NPN NO output (other variants: HP9 = PNP NO).
Typical Applications
✔ Machine tooling (position sensing of metal parts).
✔ Conveyor systems (detecting metal components).
✔ Food/beverage industry (stainless steel housing for hygiene).
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