Description
Product Overview
The Baomain LJC12A3-5-Z BY is a high‑performance capacitive proximity sensor designed for demanding industrial applications. Built with a robust metal‑plastic alloy housing, the sensor combines durability with precise detection capabilities. It operates on a DC supply range of 10‑30 V and delivers a maximum output current of 200 mA, making it compatible with a wide variety of control circuits. The sensor’s detection distance of 1‑5 mm allows it to sense both metal and non‑metallic objects, providing flexibility for diverse automation tasks. Its PNP normally‑open (NO) output ensures straightforward integration into PLCs, relays, and other control devices. The compact cylindrical design, finished in a distinctive blue color, not only aids in visual identification but also contributes to a low profile installation in tight spaces.
![[Product front view showing all components]](https://www.bestfair.store/wp-content/uploads/2026/08/3cc07fb71d3548ceba7d466f5cf765c6.jpg)
Usage
Engineered for versatility, this sensor excels in environments such as assembly lines, packaging machinery, robotic workcells, and safety monitoring stations. It can be employed to detect the presence of components on conveyor belts, verify the positioning of parts before machining, or monitor access doors in hazardous areas. The sensor’s wide operating temperature range of –25 °C to +65 °C ensures reliable performance in both chilled and heated facilities. Its low power consumption makes it suitable for battery‑backed systems, while the three‑wire configuration (brown, black, blue) simplifies wiring and reduces installation time. Whether used in a high‑speed production line or a low‑volume custom fixture, the Baomain sensor delivers consistent, repeatable results.
Why Choose Us
Choosing Baomain means selecting a brand with a proven track record in industrial sensor technology. Each sensor undergoes rigorous quality testing, including environmental stress screening and electrical performance verification, to guarantee long‑term reliability. The alloy construction resists corrosion and mechanical impact, extending service life even in harsh conditions. Baomain provides comprehensive technical support, offering assistance from initial selection through final integration. Our after‑sales service includes rapid response to inquiries, detailed documentation, and access to replacement parts, ensuring minimal downtime for your operations. With a competitive price point and a reputation for durability, Baomain sensors deliver value without compromising on performance.
Key Features
- Detects both metal and non‑metal objects within a 1‑5 mm range for versatile applications.
- Robust metal‑plastic alloy housing resists corrosion and mechanical shock.
- PNP normally‑open output simplifies wiring to PLCs, relays, and controllers.
- Wide operating voltage (10‑30 V DC) and low power draw for energy‑efficient operation.
- Dedicated Baomain technical support and fast after‑sales service for peace of mind.
FAQ
What types of materials can the sensor detect?
The sensor is capable of detecting conductive metals such as steel, aluminum, and copper, as well as non‑conductive materials like plastics and composites, provided they are within the specified detection distance.
Can the sensor be used in a wet or humid environment?
Yes. The sensor’s sealed housing protects internal components from moisture, allowing reliable operation in humid or lightly wet conditions, as long as the ambient temperature stays within –25 °C to +65 °C.
How do I wire the sensor to a PLC?
Connect the brown wire to the positive supply (+10‑30 V), the black wire to the negative or ground, and the blue wire to the PLC input. The sensor will output a high signal when an object is detected.
Is a replacement part available if the sensor fails?
Baomain maintains an inventory of spare parts and offers direct replacement units. Contact our support team with the model number LJC12A3-5-Z BY, and we will arrange a prompt replacement.
What is the expected lifespan of the sensor?
When operated within the specified voltage and temperature ranges, the sensor typically exceeds 10,000 operating hours, reflecting its durable construction and reliable design.







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