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Allen Bradley 845 Encoders 845N-SJDN3-CMY2

Product image is representative; revision or series may vary. Contact us to request a specific version.

845N-SJDN3-CMY2

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The 845N-SJDN3-CMY2 is an optical incremental encoder manufactured by Allen Bradley. With a square flange design, this device operates effectively within a voltage range of 5 to 15 VDC and offers a resolution of 500 PPR, making it suitable for precise motion control applications.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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 845N-SJDN3-CMY2

ManufacturerAllen Bradley
Product TypeOptical incremental encoder
Product Line845 Encoders
Part Number845N-SJDN3-CMY2
Weight0.88 lbs (0.40 kg)
Flange TypeSquare Flange
Encoding TypeIncremental
Sensing TechnologyOptical
Voltage Rating (DC)5 to 15 VDC
Encoder Resolution500 PPR
Storage Temperature Range-25 to 90 °C
Humidity RangeUp to 98% without condensation
IP RatingIP65/IP66
Connector TypeSide Radial Connector
Actuator TypeShaft
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The Allen Bradley 845N-SJDN3-CMY2 is a reliable optical incremental encoder designed primarily for applications requiring accurate position sensing. This encoder utilizes optical sensing technology, providing enhanced performance in measuring incremental movement. It is fitted with a square flange, weighing only 0.9 lbs, which facilitates easy installation in various configurations.

Operationally, the encoder is rated for voltages between 5 to 15 VDC and achieves a resolution of 500 pulses per revolution (PPR), making it suitable for high-precision tasks. Constructed to endure demanding conditions, the 845N-SJDN3-CMY2 works effectively within a storage temperature range from -25 °C to 90 °C. The device can tolerate high humidity levels, reaching up to 98% without condensation, further enhancing its adaptability.

With an IP rating of IP65/IP66, this encoder provides a strong defense against dust ingress and water penetration, making it ideal for both indoor and outdoor applications. Its side radial connector simplifies wiring and integration into existing systems. Designed for shaft actuation, the encoder serves as a critical component in controlling and monitoring motion, ensuring operational efficiency in various equipment.