Pepperl+Fuchs ML4.2-8-H-20-IR/40B/95/110 Background Suppression Photoelectric Sensor | Replacement, Equivalent & Selection Guide
The Pepperl+Fuchs ML4.2-8-H-20-IR/40B/95/110 is a compact, high-performance background suppression photoelectric sensor from the ML4.2 series. Designed for precise object detection in industrial automation environments, it delivers reliable sensing performance even in challenging ambient conditions. Konmask.com supplies this model as both an original OEM unit and can guide you to verified compatible replacements.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Pepperl+Fuchs (P+F) |
| Part Number / SKU | ML4.2-8-H-20-IR/40B/95/110 |
| Series | ML4.2 |
| Sensing Principle | Background Suppression (Diffuse Reflection) |
| Light Source | Infrared (IR) |
| Sensing Range | 20–40 mm (adjustable) |
| Supply Voltage | 10–30 V DC |
| Output Type | PNP / NPN (configurable) |
| Output Function | Light-ON / Dark-ON |
| Protection Class | IP67 |
| Housing Material | Plastic |
| Connection Type | M8 Connector, 4-pin |
| Operating Temperature | -25 °C to +60 °C |
| Weight | ~1150 g (packaged) |
| Certifications | CE, UL |
Compatible Replacement & Equivalent Models
If the original ML4.2-8-H-20-IR/40B/95/110 is unavailable or you require a cost-effective alternative, the following models offer equivalent or compatible functionality. Always verify electrical and mechanical compatibility before substitution.
| Brand | Model | Notes |
|---|---|---|
| Pepperl+Fuchs | ML4.2-8-H-20-IR/40B/95/102 | Same series, different connector variant |
| Pepperl+Fuchs | ML4.2-8-H-20-IR/40a/95/110 | Alternate output configuration |
| SICK | WTB4-3P2361 | Comparable background suppression, M8 connector |
| Omron | E3Z-LS61 | Similar sensing range and output type |
| Balluff | BOS 6K-PO-1PD-S49-C | Compact BGS sensor, PNP output |
| Keyence | PZ-G42P | High-precision BGS, M8 connector |
Note: Cross-brand replacements require verification of supply voltage, output polarity, sensing range, and connector pinout. Contact Konmask.com for pre-sales compatibility support.
Why Choose the Original Model
- Proven reliability in Pepperl+Fuchs ML4.2 series with millions of units deployed globally
- Factory-calibrated background suppression for consistent detection accuracy
- IP67 rated — fully protected against dust ingress and temporary water immersion
- Wide supply voltage range (10–30 V DC) for flexible integration into existing control panels
- Long service life with solid-state IR emitter — no mechanical wear
- Direct PLC compatibility with Siemens, Mitsubishi, Omron, Allen-Bradley, and other major platforms
Typical Applications
- Object presence detection on conveyor lines
- Label and packaging detection in food & beverage production
- Part positioning in automotive assembly
- Transparent object detection (with appropriate surface conditions)
- Pick-and-place robot guidance systems
- Printing and paper handling machinery
System Compatibility
The ML4.2-8-H-20-IR/40B/95/110 is compatible with the following PLC and control system platforms:
- Siemens S7-200, S7-300, S7-400, S7-1200, S7-1500
- Mitsubishi FX, Q, iQ-R Series
- Omron CP1, CJ2, NX/NJ Series
- Allen-Bradley (Rockwell) MicroLogix, CompactLogix, ControlLogix
- Schneider Electric Modicon M221, M241, M340
- Beckhoff CX, EK Series with standard digital input modules
Selection Guide
Use the following criteria to confirm the ML4.2-8-H-20-IR/40B/95/110 is the right sensor for your application, or to identify a suitable alternative:
| Requirement | Recommended Action |
|---|---|
| Sensing range 20–40 mm | ✅ This model is suitable |
| Sensing range < 20 mm | Consider ML4.2-8-H-10-IR series |
| Sensing range > 40 mm | Consider ML100 or OBT series |
| Need IO-Link communication | Consider ML4.2-8-H-20-IR/IO-Link variant |
| Stainless steel housing required | Consider ML8 or ML100 stainless variants |
| ATEX / Ex-rated environment | Consult P+F Ex-rated sensor catalog |
| High-speed detection (< 0.5 ms) | Consider Keyence PZ-G or SICK W4 series |
Quality Assurance & Sourcing
- Authentic OEM units sourced directly from Pepperl+Fuchs authorized distribution channels
- Each unit undergoes incoming inspection including visual check and functional verification
- Products are stored in ESD-safe, climate-controlled warehouse conditions
- Traceability: batch records and certificates of conformity available on request
- Konmask.com maintains stock of both current production and legacy/obsolete P+F models
How to Order
- Click Add to Cart or Contact Us for bulk/OEM pricing
- Provide your full part number: ML4.2-8-H-20-IR/40B/95/110
- Specify quantity and required delivery timeline
- Our team will confirm availability, lead time, and issue a formal quotation within 24 hours
- Payment via T/T, PayPal, or credit card — worldwide shipping available
Replacement & Compatibility FAQ
Q: Can I replace the ML4.2-8-H-20-IR/40B/95/110 with a SICK or Omron sensor?
A: Cross-brand replacement is possible in many cases, but requires careful verification of output type (PNP/NPN), supply voltage, sensing range, and connector pinout. Contact us for a compatibility check.
Q: Is this sensor compatible with IO-Link?
A: The standard ML4.2-8-H-20-IR/40B/95/110 does not support IO-Link. For IO-Link capability, request the IO-Link variant from the ML4.2 series.
Q: What is the difference between /40B and /40a suffix?
A: The suffix denotes output configuration and cable/connector options. /40B typically indicates a specific output switching mode. Contact Konmask.com for detailed suffix decoding.
Q: Do you supply obsolete or discontinued P+F sensors?
A: Yes. Konmask.com specializes in sourcing both current and legacy Pepperl+Fuchs components. Submit your part number for a stock check.
Q: What is the lead time for this model?
A: In-stock orders typically ship within 1–3 business days. Out-of-stock items have a lead time of 2–6 weeks depending on sourcing. Contact us for real-time availability.
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