{"id":8532514504857,"title":"LJ12A3-4-Z BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor\/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino","handle":"lj12a3-4-z-bx-proximity-sensor-ruizhi-pack-of-5-lj12a3-4-z-switch-sensor-switch-inductive-metal-inductive-npn-normally-open-3-core-dc-6-36v-compatible-with-arduino","description":"\u003ch3\u003eLJ12A3-4-Z BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor\/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eDetection principle: After switching on, the high frequency oscillator of the\nsensor creates an alternating electromagnetic field on its detection surface.\nAs a metal object approaches, eddy currents absorb some of the field energy,\ncausing a drop in oscillator power and triggering the NPN closer output. This\nconstruction ensures fast, accurate and safe detection. Details: Product\nmodel: LJ12A3-4-Z\/BX Operating voltage: 6-36 VDC. Detection distance: 0-4 mm.\nLoad current: \u0026lt;300 mA. Output shape: NPN three-wire (not buried). Output\nstatus: normally open (NO) Output level: low level (if metal is present).\nDetecting fabric: metal. Material: Copper\/PBT External cable: 1.2 m. Output\nindicator: LED (Red) Dimensions: 12 mm diameter, 40 mm thread length, 60 mm\ntotal length. Features 1. Hysteresis distance: \u0026lt;10% detection distance. 2.\nPower consumption: \u0026lt;13 mA. 3. Protection function: reverse polarity\nprotection, surge protection, load short circuit protection 4. Use of the\nenvironment: -30C to +70C \/ -30% to +95% RH. 5. Insulation impedance: \u0026gt;50MQ.\n6. Temperature effects: temperature range -30C to +65C, within 15% of the\ndetection range. 7. Voltage influences: rated supply voltage range within 15%,\neffect on the detection distance of the switch of 10%; the supply voltage\nexceeds the rated voltage +15%, which will damage the opening time 8. Design\nStructure: IP67 (IEC Specification) Pin Description: Brown: VCC; Blue: GND;\nBlack: Signal Advantages: ✔️ Easy to install and use. ✔️ Accurate and reliable\ndetection. ✔️ Robust and durable. Product includes: 5 x LJ12A3-4-Z BX\ninductive proximity sensor\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003ePrecise metal detection: NPN NO output with 0-4 mm detection range reliably detects ferrous metals. Low-level output signal ensures compatibility with PLCs and industrial controls. (15% distance stability)\u003c\/li\u003e\n \u003cli\u003eIndustrial-grade durability: copper\/PBT housing withstands extreme temperatures from -30C to +70C. IP67 protection resists water\/dust. 40mm brass thread for secure mounting in harsh environments.\u003c\/li\u003e\n \u003cli\u003eProtection: LJ12A3-4-Z inductive proximity sensor with built-in protection against reverse polarity\/short circuit\/overvoltage (max. 300mA) \u0026lt;13mA low consumption with LED status indicator. 1.2m flexible cable for easy wiring.\u003c\/li\u003e\n \u003cli\u003ePlug \u0026amp; Play installation: pre-wired 3-core cable (brown VCC, blue GND, black signal). LJ12A3-4-Z\/BX switch sensor 12 mm compact design fits in tight spaces.\u003c\/li\u003e\n \u003cli\u003eCompatible with Arduino The inductive proximity sensor LJ12A3-4-Z BX is equipped with a red LED indicator and a 1.2m cable for easy integration with Arduino.\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2025-09-26T00:55:56+10:00","created_at":"2025-09-26T00:55:52+10:00","vendor":"RUIZHI","type":"Proximity Sensors","tags":["industryDE_Sep2025"],"price":14700,"price_min":14700,"price_max":14700,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":45746950275225,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"de-B0DXL4C9JH","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"LJ12A3-4-Z BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor\/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino","public_title":null,"options":["Default Title"],"price":14700,"weight":10,"compare_at_price":null,"inventory_management":"shopify","barcode":"LJ12A3-4-Z 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BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor\/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eDetection principle: After switching on, the high frequency oscillator of the\nsensor creates an alternating electromagnetic field on its detection surface.\nAs a metal object approaches, eddy currents absorb some of the field energy,\ncausing a drop in oscillator power and triggering the NPN closer output. This\nconstruction ensures fast, accurate and safe detection. Details: Product\nmodel: LJ12A3-4-Z\/BX Operating voltage: 6-36 VDC. Detection distance: 0-4 mm.\nLoad current: \u0026lt;300 mA. Output shape: NPN three-wire (not buried). Output\nstatus: normally open (NO) Output level: low level (if metal is present).\nDetecting fabric: metal. Material: Copper\/PBT External cable: 1.2 m. Output\nindicator: LED (Red) Dimensions: 12 mm diameter, 40 mm thread length, 60 mm\ntotal length. Features 1. Hysteresis distance: \u0026lt;10% detection distance. 2.\nPower consumption: \u0026lt;13 mA. 3. Protection function: reverse polarity\nprotection, surge protection, load short circuit protection 4. Use of the\nenvironment: -30C to +70C \/ -30% to +95% RH. 5. Insulation impedance: \u0026gt;50MQ.\n6. Temperature effects: temperature range -30C to +65C, within 15% of the\ndetection range. 7. Voltage influences: rated supply voltage range within 15%,\neffect on the detection distance of the switch of 10%; the supply voltage\nexceeds the rated voltage +15%, which will damage the opening time 8. Design\nStructure: IP67 (IEC Specification) Pin Description: Brown: VCC; Blue: GND;\nBlack: Signal Advantages: ✔️ Easy to install and use. ✔️ Accurate and reliable\ndetection. ✔️ Robust and durable. Product includes: 5 x LJ12A3-4-Z BX\ninductive proximity sensor\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003ePrecise metal detection: NPN NO output with 0-4 mm detection range reliably detects ferrous metals. Low-level output signal ensures compatibility with PLCs and industrial controls. (15% distance stability)\u003c\/li\u003e\n \u003cli\u003eIndustrial-grade durability: copper\/PBT housing withstands extreme temperatures from -30C to +70C. IP67 protection resists water\/dust. 40mm brass thread for secure mounting in harsh environments.\u003c\/li\u003e\n \u003cli\u003eProtection: LJ12A3-4-Z inductive proximity sensor with built-in protection against reverse polarity\/short circuit\/overvoltage (max. 300mA) \u0026lt;13mA low consumption with LED status indicator. 1.2m flexible cable for easy wiring.\u003c\/li\u003e\n \u003cli\u003ePlug \u0026amp; Play installation: pre-wired 3-core cable (brown VCC, blue GND, black signal). LJ12A3-4-Z\/BX switch sensor 12 mm compact design fits in tight spaces.\u003c\/li\u003e\n \u003cli\u003eCompatible with Arduino The inductive proximity sensor LJ12A3-4-Z BX is equipped with a red LED indicator and a 1.2m cable for easy integration with Arduino.\u003c\/li\u003e\n \u003c\/ul\u003e"}
LJ12A3-4-Z BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino
LJ12A3-4-Z BX Proximity Sensor RUIZHI Pack of 5 LJ12A3-4-Z Switch Sensor/Switch Inductive Metal Inductive NPN Normally Open 3-Core DC 6-36V Compatible with Arduino
Detection principle: After switching on, the high frequency oscillator of the sensor creates an alternating electromagnetic field on its detection surface. As a metal object approaches, eddy currents absorb some of the field energy, causing a drop in oscillator power and triggering the NPN closer output. This construction ensures fast, accurate and safe detection. Details: Product model: LJ12A3-4-Z/BX Operating voltage: 6-36 VDC. Detection distance: 0-4 mm. Load current: <300 mA. Output shape: NPN three-wire (not buried). Output status: normally open (NO) Output level: low level (if metal is present). Detecting fabric: metal. Material: Copper/PBT External cable: 1.2 m. Output indicator: LED (Red) Dimensions: 12 mm diameter, 40 mm thread length, 60 mm total length. Features 1. Hysteresis distance: <10% detection distance. 2. Power consumption: <13 mA. 3. Protection function: reverse polarity protection, surge protection, load short circuit protection 4. Use of the environment: -30C to +70C / -30% to +95% RH. 5. Insulation impedance: >50MQ. 6. Temperature effects: temperature range -30C to +65C, within 15% of the detection range. 7. Voltage influences: rated supply voltage range within 15%, effect on the detection distance of the switch of 10%; the supply voltage exceeds the rated voltage +15%, which will damage the opening time 8. Design Structure: IP67 (IEC Specification) Pin Description: Brown: VCC; Blue: GND; Black: Signal Advantages: ✔️ Easy to install and use. ✔️ Accurate and reliable detection. ✔️ Robust and durable. Product includes: 5 x LJ12A3-4-Z BX inductive proximity sensor
Product Features
- Precise metal detection: NPN NO output with 0-4 mm detection range reliably detects ferrous metals. Low-level output signal ensures compatibility with PLCs and industrial controls. (15% distance stability)
- Industrial-grade durability: copper/PBT housing withstands extreme temperatures from -30C to +70C. IP67 protection resists water/dust. 40mm brass thread for secure mounting in harsh environments.
- Protection: LJ12A3-4-Z inductive proximity sensor with built-in protection against reverse polarity/short circuit/overvoltage (max. 300mA) <13mA low consumption with LED status indicator. 1.2m flexible cable for easy wiring.
- Plug & Play installation: pre-wired 3-core cable (brown VCC, blue GND, black signal). LJ12A3-4-Z/BX switch sensor 12 mm compact design fits in tight spaces.
- Compatible with Arduino The inductive proximity sensor LJ12A3-4-Z BX is equipped with a red LED indicator and a 1.2m cable for easy integration with Arduino.
