RFQ

Pepperl+Fuchs Inductive sensor NBB20-U1-UU

  • NG # 04167-HW-PEP-049

  • MF # NBB20-U1-UU

The NBB20‑U1‑UU is an industrial inductive proximity sensor from Pepperl+Fuchs designed for reliable object detection in automation environments. It features a two‑wire design with selectable normally open/closed switching function and offers robust performance with reverse polarity tolerance and pulsing short‑circuit protection.

Manufactured By :
Pepperl+Fuchs
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Call +88 01714243446

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Overview

The NBB20‑U1‑UU inductive sensor detects metallic targets within a 20 mm range and is suitable for flush mounting. It operates on a wide voltage range compatible with both AC and DC supplies. Integrated indicator LEDs provide status feedback. The sensor is engineered for durability and flexible use in industrial control and automation systems.

Specification

General Characteristics

  • Switching function: Normally open / Normally closed (selectable) 
  • Output type: Two‑wire 
  • Rated operating distance: 20 mm 
  • Installation: Flush 
  • Output polarity: AC/DC capable 

Electrical Ratings

  • Operating voltage range: 24 … 250 V DC / 24 … 230 V AC  
  • Operating voltage limits: 20 … 275 V DC / 20 … 253 V AC  
  • Operating current: 5 … 500 mA 
  • Rated operating current: 500 mA (50/60 Hz) 
  • Lowest operating current: 5 mA 
  • Voltage drop: ≤ 5 V (DC), ≤ 8 V (AC) 

Performance & Protection

  • Switching frequency: AC up to 30 Hz, DC up to 100 Hz 
  • Reverse polarity protection: Yes (tolerant) 
  • Short‑circuit protection: Pulsing type 
  • Indicators: Operating voltage LED (green), switching state LED (yellow), error indicator 

Environmental & Mechanical

  • Ambient temperature: ‑25 … 85 °C 
  • Storage temperature: ‑25 … 85 °C 
  • Degree of protection: IP67 
  • Housing material: Plastic with metal components 
  • Connection type: Terminal compartment with screw connections 
  • Dimensions (approx): 118 mm length × 40 mm width × 40 mm height 

Standards and Compliance

  • Conforms to EN IEC 60947‑5‑2 
  • cULus Listed protection class II 
  • Protection rating Type 1 enclosure 

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