Panasonic CX-421 Diffuse Reflective Photoelectric Sensor

USD 23.76

Compact diffuse reflective photoelectric sensor with 300mm range, NPN output, IP67 protection, and 1ms response time for reliable object detection.

SKU Pananonic-CX-421 Category
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Panasonic CX-421 Diffuse Reflective Photoelectric Sensor

Model Identifier CX-421
Official Part Number CX-421
GTIN Standard NA

Technical Overview

Compact diffuse reflective photoelectric sensor with 300mm range, NPN output, IP67 protection, and 1ms response time for reliable object detection.

Key Features

  • Compact photoelectric sensor with amplifier built-in.
  • Diffuse reflective sensing method.
  • NPN Open Collector transistor output with short-circuit protection.
  • Switchable Light-ON or Dark-ON output operation.
  • Infrared LED emitting element (860 nm wavelength).
  • IP67 (IEC) protection rating.
  • Supply voltage range: 12 to 24 VDC (±10% ripple P-P 10% or less).
  • Repeatability of 1 mm or less (perpendicular to sensing axis).
  • Fast response time of 1 ms or less.
  • Wide operating temperature range from -25°C to +55°C.
  • Durable PBT enclosure, acrylic lens, and acrylic indicator cover.
  • Resistant to oil mists and ethanol-based detergents.
  • Automatic interference prevention allows multiple sensors to be mounted close together.

Achieves significant power consumption reductions, up to 60%, averaging 44% when upgrading, contributing to energy efficiency with a low current consumption of 13 mA or less.

Technical Specification Matrix

ParameterValue
Sensing Range300 mm
Sensor Output TypeNPN Open Collector
Supply Voltage DC12 to 24 VDC
Connection MethodCable (2m, 3-core 0.2mm2 cabtyre)
Sensing MethodDiffuse Reflective
IP RatingIP67 (IEC)
Response Time1 ms or less
Operating Temperature-25°C to +55°C
Housing MaterialPBT (Enclosure), Acrylic (Lens, Indicator Cover)
Light SourceInfrared LED (860 nm)
Repeatability1 mm or less
Current Consumption13 mA or less
Physical Weight (kg)0
Dimensions L x W x H (cm)2 x 1.12 x 3.1

Industrial Applications

1. Conveyor Belt Material Detection in Wet/Dusty Environments

The CX-421 can reliably detect the presence or absence of various materials on a conveyor belt in manufacturing or packaging lines. Its 300mm sensing range is suitable for common conveyor widths, and the NPN output can directly interface with PLCs or control systems.

Problem Solved

Ensures accurate material flow monitoring and prevents jams or missing products, even in environments exposed to moisture, dust, or oil mists, thanks to its IP67 rating and robust housing materials. The fast 1ms response time allows for detection of quickly moving items.

Conveyor automationobject detectionmaterial handlingIP67NPN outputfast responsediffuse reflectiveharsh environment

2. Industrial Packaging Machine Product Counting/Positioning

This sensor can be integrated into packaging machinery for precise counting of products or confirming their correct position before sealing or further processing. Its compact size allows for installation in confined spaces typical in packaging equipment.

Problem Solved

Achieves high-speed and accurate product counting/positioning, improving packaging efficiency and quality control. The 1mm repeatability ensures consistent trigger points, and its resistance to ethanol-based cleaning agents makes it suitable for food or pharmaceutical packaging lines that require frequent sanitization.

Packaging automationproduct countingposition sensinghigh-speed detectioncompact designNPN outputethanol resistance

3. Automotive Manufacturing Assembly Line Component Verification

The CX-421 can be employed in automotive assembly to verify the presence of components or confirm assembly steps. Its ability to operate in environments with oil mists makes it ideal for areas near machining or engine assembly.

Problem Solved

Guarantees critical component presence and correct assembly sequences, reducing errors and improving product quality in demanding automotive production lines. The wide operating temperature range allows for use in varied workshop conditions, and the IP67 rating protects against coolants and lubricants.

Automotive assemblycomponent verificationoil mist resistanceIP67NPN outputquality assuranceindustrial automation
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