Pepperl Fuchs NBN3-F31K-Z8-K – Inductive sensor. Valve position detection
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Quick facts
| Availability | Confirmed on request |
| Category | Inductive Sensors |
| Lifecycle | Active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can NBN3-F31K-Z8-K be shipped?
NBN3-F31K-Z8-K is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
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Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
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My factory is down and I need this urgently — can you help?
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Inductive sensor. Valve position detection, Solenoid valve output, Switching function: 2 x normally open (NO), Output type: Two-wire, Installation: flush mountable, Output polarity: DC, Output type: 4-wire, Construction type: Dual sensor, Series: Dual sensor, Operating voltage: 6 ... 60 V DC, Type of voltage: DC, Connection (system side): Cage tension spring terminals, Housing material: PBT, Degree of protection: IP67. Switching function: 2 x normally open (NO). Output type: Two-wire. Rated operating distance: 3 mm. Installation: flush mountable. Output polarity: DC. Assured operating distance: 0 ... 2.43 mm. Actual operating distance: 2.7 ... 3.3 mm typ. 3 mm. Reduction factor rAl: 0.5. Reduction factor rCu: 0.4. Reduction factor r304: 1. Reduction factor rSt37: 1.1. Output type: 4-wire. Operating voltage: 6 ... 60 V DC. Switching frequency: 0 ... 500 Hz. Hysteresis: typ. 5 %. Reverse polarity protection: reverse polarity tolerant. Short-circuit protection: pulsing. Voltage drop: ≤ 5.5 V. Operating current: 4 ... 100 mA. Lowest operating current: 4 mA. Off-state current: 0.5 ... 0.9 mA typ. 0.65 mA. Time delay before availability: ≤ 40 ms. Switching state indicator: LED, yellow. Valve status indicator: LED, yellow. Tightening torque, fastening screws: 0.4 Nm. MTTFd: 570 a. Mission Time (TM): 20 a. Diagnostic Coverage (DC): 0 %. Voltage: max. 32 V DC. Current: max. 240 mA. Short-circuit protection: no. Reverse polarity protection: yes, with reversed output LED is out of function, therfore more power for solenoid valve. Standard conformity: . StandardsEN IEC 60947-5-2: . Standards: EN IEC 60947-5-2. UL approval: cULus Listed Load Type: General Purpose Circuitry: Class 2 Power Source Enclosure Type Rating: Type 1 Supply/Switching Voltage: 60 V DC Output Switching Current: 100 mA. CCC approval: Certified by China Compulsory Certification (CCC). Ambient temperature: -25 ... 70 °C (-13 ... 158 °F). 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. Mass: 180 g. Tightening torque, fastening screws: ≤ 5 Nm. Tightening torque, housing screws: 1 Nm. Tightening torque, cable gland: M20 x 1.5 ; max. 7 Nm M12 x 1.5 ; max. 1.5 Nm. Dimensions: . Height35 mmWidth65 mmLength77.5 mm: . Height: 35 mm. Width: 65 mm. Length: 77.5 mm
Specifications
General specifications
| Switching function | 2 x normally open (NO) |
| Output type | Two-wire |
| Rated operating distance | 3 mm sn |
| Installation | flush mountable |
| Output polarity | DC |
| Assured operating distance | 0 ... 2.43 mm sa |
| Actual operating distance | 2.7 ... 3.3 mm typ. 3 mm sr |
| Reduction factor rAl | 0.5 |
| Reduction factor rCu | 0.4 |
| Reduction factor r304 | 1 |
| Reduction factor rSt37 | 1.1 |
| Output type | 4-wire |
Nominal ratings
| Operating voltage | 6 ... 60 V DC UB |
| Switching frequency | 0 ... 500 Hz f |
| Hysteresis | typ. 5 % H |
| Reverse polarity protection | reverse polarity tolerant |
| Short-circuit protection | pulsing |
| Voltage drop | ≤ 5.5 V Ud |
| Operating current | 4 ... 100 mA IL |
| Lowest operating current | 4 mA Im |
| Off-state current | 0.5 ... 0.9 mA typ. 0.65 mA Ir |
| Time delay before availability | ≤ 40 ms tv |
| Switching state indicator | LED, yellow |
| Valve status indicator | LED, yellow |
Limit data
| Tightening torque, fastening screws | 0.4 Nm |
Functional safety related parameters
| MTTFd | 570 a |
| Mission Time (TM) | 20 a |
| Diagnostic Coverage (DC) | 0 % |
Valve circuit
| Voltage | max. 32 V DC |
| Current | max. 240 mA |
| Short-circuit protection | no |
| Reverse polarity protection | yes, with reversed output LED is out of function, therfore more power for solenoid valve |
Compliance with standards and directives
| Standard conformity | |
| StandardsEN IEC 60947-5-2 | Standards |
| Standards | EN IEC 60947-5-2 |
Approvals and certificates
| UL approval | cULus Listed Load Type: General Purpose Circuitry: Class 2 Power Source Enclosure Type Rating: Type 1 Supply/Switching Voltage: 60 V DC Output Switching Current: 100 mA |
| CCC approval | Certified by China Compulsory Certification (CCC) |
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 |
| Mass | 180 g |
| Tightening torque, fastening screws | ≤ 5 Nm |
| Tightening torque, housing screws | 1 Nm |
| Tightening torque, cable gland | M20 x 1.5 ; max. 7 Nm M12 x 1.5 ; max. 1.5 Nm |
| Dimensions | |
| Height35 mmWidth65 mmLength77.5 mm | Height |
| Height | 35 mm |
| Width | 65 mm |
| Length | 77.5 mm |
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