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Allen Bradley 42SMP-7021 Fixed Focus Diffuse Photoelectric Sensor

Allen Bradley 42SMP-7021: Fixed Focus Diffuse Photoelectric Sensor.

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ManufacturerAllen Bradley

Part number42SMP-7021

Type Photoelectric Sensor

Sensing Mode Fixed Focus Diffuse

Light Source Visible Red LED

Operating Voltage 11-28V DC

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12-month warranty

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Fixed focus diffuse sensing Visible red LED Fast 0.5 ms response time NPN output 11-28V DC operation Manual sensitivity adjustment

Product description

The Allen-Bradley 42SMP-7021 is a fixed-focus, diffuse photoelectric sensor from the 7000 Series, designed for precise object detection. It utilizes a visible red LED light source and operates within a voltage range of 11-28V DC. This sensor offers a very fast response time of 0.5 ms, making it suitable for high-speed applications.

This sensor is ideal for industrial automation, material handling, and manufacturing processes where accurate and consistent detection of objects is required. Its NPN output provides compatibility with a wide range of control systems.

Stanlo Automation, your trusted source for surplus industrial automation parts, offers the Allen Bradley 42SMP-7021. We are a veteran-owned business committed to providing quality components to keep your operations running efficiently.

Technical specifications

Type	Photoelectric Sensor
Sensing Mode	Fixed Focus Diffuse
Light Source	Visible Red LED
Operating Voltage	11-28V DC
Output Type	NPN
Response Time	0.50 ms
Connection	3m cable

Common applications

Industrial Automation

Material Handling

Manufacturing Processes

Object Detection

Assembly Lines

Packaging

Compatible systems

Compatible with industrial control systems requiring NPN inputs.

Also known as

Allen Bradley 42SMP-7021 PHOTOSWITCH 42SMP-7021

Replaces / compatible with

This sensor is part of the Allen-Bradley Series 7000. While specific replacements may vary, it serves as a reliable component for fixed-focus diffuse sensing applications.

Technical note

Expert tip

The 42SMP-7021 features manual sensitivity adjustment via a 5-turn potentiometer, allowing for fine-tuning in specific application environments.

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Frequently asked questions

What is the sensing range for the Allen Bradley 42SMP-7021?

The Allen Bradley 42SMP-7021 has a sensing range of 15mm. This fixed focus makes it ideal for detecting objects at a precise, short distance.