IFM IFS240 Inductive Sensor – IFK3004BBPKG/US-104

The IFM IFS240 is a rugged, flush-mountable inductive proximity sensor built for reliable metal detection in challenging industrial environments. Offering a 4 mm sensing range, PNP normally open output, and extended temperature capability down to –40 °C, it is ideal for use in mobile machinery, cooling/lubrication systems, and heavy-duty automation. Housed in a corrosion-resistant M12 x 1 brass body with white bronze coating and IP69K sealing, the IFS240 combines high EMC immunity, shock and vibration resistance, and gold-plated contacts for long-term signal stability.

Technical Specifications

Model: IFS240 Sensor
Part Number: IFK3004BBPKG/US/104
Sensor Type: Inductive Proximity Sensor
Housing Type: Threaded Cylinder (Flush Mount)
Dimensions: M12 x 1, Length = 60 mm
Sensing Range (Sn): 4 mm
Real Sensing Range (Sr): 4 ± 10 % mm
Operating Distance: 0…3.24 mm
Special Features: Gold-plated contacts, Increased sensing range
Application: Industrial machinery, mobile equipment, lubrication/cooling systems

Electrical Characteristics

• Operating Voltage: 10…30 V DC
• Current Consumption: < 10 mA
• Protection Class: III
• Reverse Polarity Protection: Yes
• Short-Circuit Protection: Yes
• Overload Protection: Yes
• Power Supply Requirement: Limited Voltage/Current

Output Configuration

• Output Type: PNP
• Function: Normally Open (NO)
• Switching Frequency: 700 Hz
• Voltage Drop (DC): ≤ 2.5 V
• Current Rating: 100 mA
• Connector Type: 1 × M12 A-coded
• Contacts: Gold-plated

Detection Characteristics

• Correction Factors:
  • Steel: 1.0
  • Stainless Steel: 0.7
  • Brass: 0.5
  • Aluminium: 0.4
  • Copper: 0.3
• Hysteresis: 3…15 % of Sr
• Switch Point Drift: –10…+10 % of Sr

Environmental Conditions

• Ambient Operating Temperature: –40 to +85 °C
• Protection Ratings: IP65 / IP66 / IP67 / IP68 / IP69K
• MTTF: 1134 years

Compliance & Certifications

• EMC Standards:
  • EN 61000-4-2 (ESD): 4 kV CD / 8 kV AD
  • EN 61000-4-3 (Radiated RF): 10 V/m
  • EN 61000-4-4 (Burst): 2 kV
  • EN 61000-4-6 (Conducted RF): 10 V
  • EN 55011: Class B
• Shock & Vibration Resistance:
  • Shock: 100 g, 11 ms – EN 60068-2-27
  • Vibration: 20 g, 10–3000 Hz – EN 60068-2-6
  • Continuous Shock: 40 g, 6 ms (4000 shocks)
  • Temperature Cycling: –40 to +85 °C (50 cycles) – EN 60068-2-14
  • Salt Spray: EN 60068-2-52, Severity Level 5
• UL Certification:
  • File No.: E174191
  • Approval No.: A001
  • Enclosure Type: Type 1
  • Operating Temperature: –25 to +70 °C

Mechanical Design

• Mounting Type: Flush mountable
• Thread Designation: M12 x 1
• Housing Material: Brass, white bronze coated
• Sensing Face Material: PBT (orange)
• LED Window: PEI
• Lock Nuts: Brass, white bronze coated
• Weight: 27.7 g
• Included Accessories: 2 × Lock nuts

Display & Indicators

• LED Indicators: 4 × Yellow LEDs (Switching status)

Key Features & Benefits

✅ 4 mm Flush Sensing Range for reliable detection in confined spaces.

✅ Ultra-Rugged Design: Withstands vibration, shock, salt spray, and temperature extremes.

✅ Gold-Plated M12 Contacts ensure long-term signal reliability.

✅ IP69K Sealing & Broad Temp Range (–40 to +85 °C) for washdown and outdoor systems.

✅ UL & EMC Certified for use in industrial control cabinets and automation setups.

✅ Long MTTF (1134 Years) reflects proven reliability and extended service life.

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