Pepperl+Fuchs SJ3,5-G-N | 3.5mm Slot Sensor, NAMUR, IP67
Pepperl+Fuchs SJ3,5-G-N inductive slot sensor. 3.5mm slot width, NAMUR output, normally closed (NC), 5-25V DC, 500mm PVC cable, IP67, -25°C to +100°C.
Product Overview
The Pepperl+Fuchs SJ3,5-G-N is a compact inductive slot sensor (fork sensor) designed for precise position detection of metallic objects. It features a 3.5 mm slot width and operates on the NAMUR principle, making it intrinsically safe and suitable for use in hazardous areas with a barrier. This sensor has a normally closed (NC) contact logic and comes with a 500 mm flexible PVC cable for direct connection to control systems.
Technical Specifications (Electrical & Functional)
| Parameter | Specification |
| Manufacturer Part No. | SJ3,5-G-N |
| Sensor Type | Inductive Slot (Fork) |
| Output Type | NAMUR (2-wire) |
| Switching Function | Normally Closed (NC) |
| Slot Width | 3.5 mm |
| Operating Voltage | 5 ... 25 V DC |
| Nominal Voltage | 8.2 V (Ri ≈ 1 kΩ) |
| Switching Frequency | 0 ... 3000 Hz |
| Current Consumption | ≤ 3 mA (No Target) |
| Hysteresis | 0 ... 0.6 mm |
Technical Specifications (Mechanical & Environmental)
| Parameter | Specification |
| Housing Material | PBT Plastic |
| Connection | 500 mm Flexible Cable (LiY, PVC) |
| Cable Cross-Section | 0.14 mm² |
| Degree of Protection | IP67 |
| Operating Temperature | -25 °C ... +100 °C |
| Dimensions (L x W x H) | 19.5 mm x 10 mm x 15 mm |
| Weight | Approx. 10 g |
| Standards | EN/IEC 60947-5-2, -5-6 |
Key Features
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NAMUR Output: Designed for use with intrinsic safety barriers, providing reliable operation in potentially explosive atmospheres.
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High-Speed Detection: With a switching frequency of up to 3000 Hz, it is ideal for counting small, fast-moving metal parts.
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Compact Form Factor: The small slot width (3.5 mm) and lightweight design allow for installation in extremely tight spaces.
Applications
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High-speed counting of screws, nuts, and small metal components
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Position verification of actuator flags in automated machinery
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Safety-related position monitoring in process automation[citation:available:2][citation:available:4]
About ACH
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
