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Allen Bradley Photoswitch 42KA-S2JNSA-A2

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42KA-S2JNSA-A2

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The 42KA-S2JNSA-A2 is an ultra-miniature photoelectric sensor from Allen Bradley's Photoswitch line. Known for its compact dimensions, this sensor operates using a sharp cutoff diffuse sensing method, ensuring reliable performance at a sensing distance of 30 mm.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 42KA-S2JNSA-A2

ManufacturerAllen Bradley
Product TypeUltra-Miniature Photoelectric Sensor
Product LinePhotoswitch
Part Number42KA-S2JNSA-A2
Sensing ModeSharp Cutoff Diffuse
Sensing Distance30 mm
Optical View DirectionSide View
Light SourceLED
LED ColorRed
Wave Length660 nm
Output TypeSink (NPN)
Operating Voltage24 VDC
Maximum Load Current80 mA
Response Time0.5 ms
Housing MaterialPolyester
Lens MaterialVinyl Chloride
IP RatingIP40
Enclosure TypeNEMA 1
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The 42KA-S2JNSA-A2 photoelectric sensor, manufactured by Allen Bradley, is classified as an ultra-miniature device designed to provide accurate sensing capabilities. It employs a sharp cutoff diffuse sensing mode, allowing it to effectively detect objects at a sensing distance of up to 30 mm. The optical view direction is oriented to the side, facilitating easy integration into different applications.

This sensor utilizes a red LED as a light source, operating at a wavelength of 660 nm, enhancing visibility during operation. Functioning with a 24 VDC power supply, it produces a sink-type output (NPN), making it suitable for numerous automation tasks. The maximum load current supported by this model is 80 mA, emphasizing its utility in various settings.

With a response time of just 0.5 milliseconds, the sensor is capable of quick detections, which is critical for systems requiring rapid feedback. Constructed from polyester, its housing ensures durability in a variety of environments. The lens is composed of vinyl chloride, providing additional protection to the internal components.

With an IP40 rating, this sensor is resistant to dust ingress and light water splashes, enabling reliable performance in industrial environments. Furthermore, the NEMA 1 enclosure type indicates that it is suited for indoor applications where basic protection is needed. Overall, the 42KA-S2JNSA-A2 sensor delivers exceptional performance within a compact framework.