BC20-CP40-FZ3X2 20mm Inductive Proximity Sensor IP67 Stainless DC 10-30V Industrial Switch

1. Dual-Channel Industrial Proximity Sensor Overview​

The Turck BC20-CP40-FZ3X2 is a heavy-duty inductive proximity sensor engineered for critical automation applications requiring redundant detection and extended sensing capabilities. Featuring an ​exceptional 40mm sensing range (CP40 suffix)​​ for ferrous metals, this device incorporates ​dual independent PNP outputs (FZ3X2 designation)​​ with configurable NO/NC logic. Its ​nickel-plated brass housing​ provides ​IP67/IP69K protection​ against high-pressure washdowns (150 bar), oils, coolants, and temporary submersion. Operating across ​​-40°C to +85°C, it detects standard steel targets (Fe360) with ​​±10% repeatability​ while resisting vibration (10g) and electromagnetic interference. The M30×1.5 threaded barrel design enables robust mounting in harsh industrial environments like metal processing, material handling, and heavy machinery where sensor redundancy enhances system reliability and safety compliance.

​2. Critical Performance Specifications​

This sensor delivers precise detection with 40mm nominal sensing distance (±10% tolerance) for ferrous targets ≥1mm thickness. Electrical specifications include dual PNP outputs (NO+NC independent channels) supporting 10-55V DC or 20-250V AC operation with ≤400mA switching current per channel. Key metrics include <15% hysteresis, ≤100Hz response frequency, and ±0.5mm repeatability. Environmental resilience features IP67/IP69K protection (IEC 60529/ISO 20653), -40°C to +85°C operating temperature, and 100g shock resistance (IEC 60068-2-27). Mechanical construction includes nickel-plated brass housing, M30×1.5 threading, and 2m PUR oil-resistant cable (ISO 1817). Certifications cover UL 508, CE, RoHS, and SIL 2 capability per IEC 61508 standards.

​3. Industrial Automation Applications​

This sensor excels in demanding environments requiring redundant detection:

• ​Automotive Stamping Presses: Dual-position verification of hydraulic rams
• ​Steel Roll Forming Lines: Backup sensing of roller positioning
• ​Mining Stacker-Reclaimers: Redundant bucket wheel alignment monitoring
• ​Pallet Conveyor Systems: Dual-channel pallet presence detection
• ​CNC Machine Tools: Tool changer position confirmation with fail-safe logic
• ​Hydraulic Presses: Platen position redundancy for safety interlocks
• ​Agricultural Combines: Dual monitoring of grain elevator positions
• ​Packaging Machinery: Guard door safety with two-channel monitoring
  The 40mm sensing range allows detection through non-metallic barriers or misaligned targets (±15mm lateral tolerance), while dual independent outputs enable SIL 2 safety circuits in critical machinery protection systems.

​4. Functional Advantages​

• ​Redundant Safety Architecture:
  Independent NO+NC outputs enable Type 2 safety circuits per IEC 61508
  Either channel operates independently with >60% diagnostic coverage
• ​Extended Sensing Capability:
  40mm range detects targets without precise alignment
  Non-flush mountable (factor 1) installation flexibility
• ​Environmental Resilience:
  Nickel-plated brass withstands coolants/hydraulic fluids
  IP69K rating survives 1500 psi steam cleaning
• ​Electrical Versatility:
  AC/DC universal voltage compatibility (10-55V DC/20-250V AC)
  Short-circuit/overload protection per channel
• ​Diagnostic Visibility:
  Dual green LEDs indicate independent output status
  Visual confirmation of NO/NC states without tools
• ​Mechanical Durability:
  500hr salt spray resistance (ISO 9227)
  Vibration resistance: 10-55Hz @ 1.5mm amplitude

​5. Dual-Channel Operation & Safety​

​Sensing Logic:

1. ​Target Detection:
   Ferrous metal enters 40mm range → electromagnetic field disturbance
2. ​Output Behavior:
   • NO Channel: Closes on detection (sinks current)
   • NC Channel: Opens on detection (stops sinking)
3. ​LED Indication:
   • Solid Green (NO): Target detected
   • Solid Green (NC): No target detected
   • Off: Power loss/channel fault
     ​Safety Integration:

• ​SIL 2 Capability:
  Dual channels satisfy architectural constraints
  Automatic diagnostics detect channel discrepancies
• ​Protection Systems:
  Reverse polarity protection (EN 60947-5-2)
  Surge suppression (1kV/500A per IEC 61000-4-5)
• ​Fault Tolerance:
  Independent channel operation maintains partial functionality
  Automatic reset after transient faults

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.

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

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