Pepperl+Fuchs NBN3-F31K-Z8-K

Inductive sensor
SKU: NBN3-F31K-Z8-K
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The inductive sensor is designed for reliable detection of metal objects within a specified range. Its rectangular housing made from PBT ensures durability in various industrial environments.

All description
Manufacturer: Pepperl+Fuchs
Description:

Inductive proximity sensors are essential components in automation and control systems, providing non-contact detection of metallic objects. These sensors operate based on the principle of electromagnetic induction, which allows them to sense the presence of metal without physical contact, thereby reducing wear and tear. Their robust design and compact form factor make them suitable for a variety of applications, including assembly lines, packaging machinery, and material handling systems.

Commonly used in industrial automation, these sensors are particularly effective in environments where traditional mechanical switches may fail due to dirt, dust, or moisture. They can be installed flush with surfaces, allowing for seamless integration into machinery and equipment. With a rated operating distance of 3 mm, this sensor type is optimized for close-range detection, enhancing operational reliability and precision.

General specifications
Switching element function DC binary NO
Rated operating distance 3 mm
Installation flush mountable
Output polarity DC
Assured operating distance 0 … 2.43 mm
Reduction factor rAl 0.5
Reduction factor rCu 0.4
Reduction factor r304 1
Reduction factor rSt37 1.1
Nominal ratings
Operating voltage 6 … 60 V DC
Switching frequency 0 … 500 Hz
Hysteresis typ. 5 %
Reverse polarity protection reverse polarity tolerant
Short-circuit protection no
Voltage drop less than or equal to 6 V
Operating current 4 … 100 mA
Lowest operating current 4 mA
Off-state current 0 … 1 mA typ. 0.7 mA
Switching state indicator LED, yellow
Valve status indicator LED, yellow
Limit data
Tightening torque, fastening screws 0.4 Nm
Functional safety related parameters
MTTFd 590 a
Mission Time (TM) 20 a
Diagnostic Coverage (DC) 0 %
Approvals and certificates
UL approval cULus Listed, General Purpose
CSA approval cCSAus Listed, General Purpose
Ambient conditions
Ambient temperature -25 … 70 �C (-13 … 158 �F)
Mechanical specifications
Connection (system side) Cage tension spring terminals
Core cross-section (system side) 1.5/2.5 mm2 flexible/rigid
Connection (valve side) Cage tension spring terminals
Core cross-section (valve side) 1.5/2.5 mm2 flexible/rigid
Housing material PBT
Sensing face PBT
Degree of protection IP67
Tightening torque, housing screws 1 Nm
Tightening torque, cable gland M20 x 1.5 – max. 7 Nm
M12 x 1.5 – max. 3 Nm
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