{"product_id":"rotary-incremental-encoder-50pr-ab-2-phase-npn-open-collector-5-24v-solid-shaft-3-pack","title":"Rotary Incremental Encoder 50P\/R AB 2-Phase NPN 5-24V | 3-Pack","description":"\n\u003ch2\u003eABKW-3X Rotary Incremental Encoder — 38S6G5-B-G24N | 50P\/R | AB 2-Phase | NPN Open Collector\u003c\/h2\u003e\n\u003cp\u003eUpgrade your motion-control and automation projects with this precision \u003cstrong\u003eRotary Incremental Encoder (3-pack)\u003c\/strong\u003e. Designed for industrial and hobbyist applications alike, this solid-shaft encoder delivers clean AB 2-phase quadrature signals at \u003cstrong\u003e50 pulses per revolution\u003c\/strong\u003e, with a wide supply voltage range of \u003cstrong\u003e5–24 V DC\u003c\/strong\u003e and an open-collector NPN output that interfaces seamlessly with PLCs, microcontrollers, and motion controllers.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 38S6G5-B-G24N (ABKW-3X, pack of 3)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e AB 2-Phase Incremental, Open-Collector NPN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 50 Pulses per Revolution (PPR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 5–24 V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Type:\u003c\/strong\u003e Solid Shaft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Metal (precision-machined for durability)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower-On Delay:\u003c\/strong\u003e 0.5 seconds stabilization time\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Pull Resistance:\u003c\/strong\u003e Rated to 29.4 N max\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue Pack:\u003c\/strong\u003e Includes 3 encoders + 3 sets of mounting screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCNC machinery and robotics\u003c\/li\u003e\n  \u003cli\u003eConveyor and motor speed feedback systems\u003c\/li\u003e\n  \u003cli\u003e3D printers and precision positioning stages\u003c\/li\u003e\n  \u003cli\u003eIndustrial automation and PLC control panels\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and educational prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Safety Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse \u003cstrong\u003eelastic (flexible) shaft couplings\u003c\/strong\u003e — rigid connections can reduce service life and accuracy.\u003c\/li\u003e\n  \u003cli\u003eMinimize eccentricity and angular deviation during mounting to protect internal components.\u003c\/li\u003e\n  \u003cli\u003eAvoid environments with strong vibration, corrosive agents, large magnetic fields, extreme temperatures, high humidity, or acidic\/alkaline conditions.\u003c\/li\u003e\n  \u003cli\u003eKeep encoder signal cables \u003cstrong\u003eseparated from high-voltage or power lines\u003c\/strong\u003e; run cables through conduit where necessary.\u003c\/li\u003e\n  \u003cli\u003eInsulate unconnected wires; ground the shielded cable. Short-circuiting terminals can damage internal circuitry.\u003c\/li\u003e\n  \u003cli\u003eAlways verify wiring against the encoder label before powering on.\u003c\/li\u003e\n  \u003cli\u003eDo not disassemble the unit; it contains precision optical components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3 × Rotary Incremental Encoder (38S6G5-B-G24N)\u003c\/li\u003e\n  \u003cli\u003e3 × Sets of Mounting Screws\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Images are representative; slight color variations may occur due to screen calibration. Dimensional tolerance is ±1–3 mm.\u003c\/p\u003e\n\n\u003cp\u003eFor general guidance on industrial encoder standards and signal wiring safety, visit the OSHA Hazardous Energy Control resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between an incremental encoder and an absolute encoder?\u003c\/h4\u003e\n\u003cp\u003eA: An \u003cstrong\u003eincremental encoder\u003c\/strong\u003e like this 50P\/R model generates pulses as the shaft rotates, allowing a controller to track relative position changes and speed. An absolute encoder outputs a unique code for each shaft position, retaining position data even after power loss. Incremental encoders are ideal for speed control, relative positioning, and cost-sensitive automation applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does \"NPN open-collector output\" mean for wiring?\u003c\/h4\u003e\n\u003cp\u003eA: An NPN open-collector output means the encoder's output transistor pulls the signal line LOW (to GND) when active, and leaves it open (floating) when inactive. You need a \u003cstrong\u003epull-up resistor\u003c\/strong\u003e (typically 4.7 kΩ–10 kΩ) connected between the output pin and your supply voltage (5–24 V) for the signal to be read correctly by a PLC or microcontroller input.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this encoder with a 5 V microcontroller such as Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The 38S6G5-B-G24N supports supply voltages from 5 V to 24 V DC. When powered at 5 V with appropriate pull-up resistors on the A and B output lines, it is fully compatible with 5 V logic microcontrollers such as Arduino Uno or Mega.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Why does this listing include 3 encoders?\u003c\/h4\u003e\n\u003cp\u003eA: The ABKW-3X is a value 3-pack, providing three identical 38S6G5-B-G24N encoders and three sets of mounting screws — ideal for multi-axis machines, spare-unit stocking, or team projects requiring consistent hardware across setups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the purpose of the 0.5-second power-on delay?\u003c\/h4\u003e\n\u003cp\u003eA: After power is applied, the encoder's internal circuitry requires approximately 0.5 seconds to stabilize. Pulse counts generated during this brief initialization window may be unreliable, so your controller logic should ignore encoder output for at least 0.5 seconds after powering on to ensure accurate readings.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between an incremental encoder and an absolute encoder?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An incremental encoder like this 50P\/R model generates pulses as the shaft rotates, allowing a controller to track relative position changes and speed. An absolute encoder outputs a unique code for each shaft position, retaining position data even after power loss. 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