Name: Pepperl+Fuchs SJ5-N Inductive Slot Sensor - INOSAKI
SKU: PEPPERL-FUCHS-SJ5-N
Price: 43.92 USD
Availability: InStock

Technical Overview

Inductive slot sensor with 5mm slot, NAMUR output, and SIL 2 rating for functional safety in hazardous industrial environments. IP67.

Key Features

5 mm slot width for precise object detection.
NAMUR output for use with approved switch amplifiers.
Usable up to SIL 2 according to IEC 61508 for functional safety applications.
Wide operating voltage range of 5 ... 25 V.
High switching frequency up to 2000 Hz for fast processes.
Robust PBT housing with IP67 degree of protection.
Suitable for use in hazardous areas (ATEX, IECEx, FM, UL approved).
Extended ambient temperature range from -25 to 100 °C.

Technical Specification Matrix

Parameter	Value
Switching function	Normally closed (NC)
Output type	NAMUR, 2-wire
Slot width	5 mm
Depth of immersion (lateral)	5 ... 7 mm, typ. 6 mm
Nominal voltage (Uo)	8.2 V (Ri approx. 1 kΩ)
Operating voltage (UB)	5 ... 25 V
Switching frequency (f)	0 ... 2000 Hz
Hysteresis (H)	0.05 ... 0.65 mm
Current consumption (Measuring plate not detected)	≥ 3 mA
Current consumption (Measuring plate detected)	≤ 1 mA
Safety Integrity Level (SIL)	SIL 2 acc. to IEC 61508
MTTFd	9060 a
Mission Time (TM)	20 a
Diagnostic Coverage (DC)	0 %
Ambient temperature	-25 ... 100 °C (-13 ... 212 °F)
Connection type	Flexible leads LiY, 500 mm
Core cross-section	0.14 mm²
Housing material	PBT
Degree of protection	IP67
Cable diameter	1.1 mm ± 0.1 mm
Cable bending radius	> 10 x cable diameter
Cable material	PVC
Cable length	500 mm
Physical Weight (kg)	0
Dimensions L x W x H (cm)	1.5 x 1 x 1.5

Industrial Applications

1. Hazardous Area Valve Position Feedback

This sensor can provide reliable open/closed feedback for valves in chemical processing environments. Its 5mm slot width allows for precise detection of valve stem position, while the NAMUR output and SIL 2 rating ensure safe operation in potentially explosive atmospheres (Category 1G; 2G; 1D, ATEX/IECEx approved). The IP67 rating and wide temperature range (-25 to 100 °C) provide durability against corrosive agents and extreme temperatures.

Problem Solved

Ensures safe and accurate monitoring of valve positions in explosive or harsh chemical processing areas, preventing spills or incorrect mixing due to undetected valve states.

NAMURSIL 2IP67ATEXIECExHazardous AreaValve PositionChemical ProcessingExplosion Protection

2. Material Presence Detection in Automated Packaging Lines

The SJ5-N's 5mm slot width and high switching frequency of up to 2000 Hz make it ideal for detecting the presence or passage of small objects, such as labels, caps, or small products, on high-speed packaging lines. Its compact size (15x10x15 mm) allows for integration into confined spaces, while the IP67 protection withstands typical washdown procedures.

Problem Solved

Accurately detects rapidly moving small components or products on automated packaging lines, ensuring correct packaging sequence and preventing machine downtime due to missed detections.

High-Speed2000 Hz5mm SlotPackagingObject DetectionIP67AutomationCompact Size

3. End-Effector Tooling State Verification

Integrated into robotic grippers or end-effectors, this sensor can verify the presence or correct seating of small tools or workpieces. The 5mm slot allows for clear detection of thin metal inserts, and the robust PBT housing provides durability against mechanical stress. The NAMUR output integrates seamlessly with existing industrial control systems.

Problem Solved

Confirms the correct attachment or presence of small tools/workpieces within robotic grippers, preventing operational errors, damage to parts, or unexpected stoppages in automated assembly.

Robotic GripperTool MonitoringWorkpiece Detection5mm SlotPBT HousingNAMURAutomationEnd-Effector