Omron E3X-SD21 Photoelectric Switch E3XSD21

Description:

The Omron E3X-SD21 photoelectric switch amplifier is used in sensor detection systems to control and process signals from fiber optic sensors in industrial automation. Commonly installed in packaging machines, assembly lines, inspection systems, and conveyor equipment requiring precise object detection. Maintenance teams and system integrators use this part for replacement, retrofit, and maintaining reliable sensing performance in automated processes.

Applications:

The Omron E3X-SD21 photoelectric switch amplifier is used in industrial environments for high-precision detection tasks such as object presence, position sensing, and counting. It is commonly applied in packaging systems, electronics manufacturing, material handling, and automated inspection systems where fiber optic sensing is required for small or difficult-to-detect objects.

Technical Specifications:

• Manufacturer Part Number (MPN): E3X-SD21
• Product Type: Fiber Optic Sensor Amplifier (Photoelectric Switch)
• Series: E3X Series
• Supply Voltage: 12 to 24 VDC
• Control Output: NPN output
• Response Time: High-speed response (microsecond range)
• Sensitivity Adjustment: Digital setting with display
• Display Type: Dual digital display
• Connection Type: Pre-wired or connector type (model dependent)
• Mounting Type: DIN rail or panel mount
• Protection Features: Short circuit protection, reverse polarity protection
• Operating Temperature: -25°C to +55°C
• Degree of Protection: IP50 (amplifier unit)

Common Replacements:

• Omron E3X-DA21-S
• Omron E3X-HD21
• Omron E3NX-FA11