Pepperl Fuchs NJ20-40-N Data Sheet
Inductive sensor NJ20-40-N
Technical Data
General specifications
Switching function Normally closed (NC)
Output type NAMUR
Rated operating distance sn20 mm
Installation non-flush
Assured operating distance sa0 ... 16.2 mm
0102
Model Number
NJ20-40-N
Features
• 20 mm non-flush
Accessories
BF 40
Mounting flange, 40 mm
Reduction factor r
Reduction factor rCu 0.3
Reduction factor r
Output type 2-wire
Nominal ratings
Nominal voltage Uo8.2 V (Ri approx. 1 kΩ)
Switching frequency f 0 ... 100 Hz
Current consumption
Measuring plate not detected
Measuring plate detected
Functional safety related parameters
MTTFd 11400 a
Mission Time (T
Diagnostic Coverage (DC) 0 %
Ambient conditions
Ambient temperature -25 ... 100 °C (-13 ... 212 °F)
Mechanical specifications
Connection type terminal compartment
Core cross-section up to 2.5 mm
Housing material PBT
Sensing face PBT
Degree of protection IP67
General information
Use in the hazardous area see instruction manuals
Category
Compliance with standards and
directives
Standard conformity
NAMUR
Standards
Approvals and certificates
FM approval
Control drawing
UL approval cULus Listed, General Purpose
CSA approval cCSAus Listed, General Purpose
CCC approval CCC approval / marking not required for products rated ≤36 V
Dimensions
0.4
Al
0.85
304
) 20 a
M
≥ 3 mA
≤ 1 mA
2
2G
EN 60947-5-6:2000
IEC 60947-5-6:1999
EN 60947-5-2:2007
IEC 60947-5-2:2007
116-0165
Electrical Connection
Ø 40
Ø 40
50
95
M16x1,5
M16x1,5M16x1,5
40
1
2
L+
L-
40
Release date: 2017-05-30 13:22 Date of issue: 2018-02-16 106498_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
1
Inductive sensor NJ20-40-N
Equipment protection level Gb
CE marking 0102
ATEX marking ¬ II 2G Ex ia IIC T6…T1 Gb
Standards EN 60079-0:2012+A11:2013, EN 60079-11:2012
Appropriate type NJ 20-40-N...
Effective internal inductivity C
Effective internal inductance L
Maximum permissible ambient temperature T
Special conditions
Equipment protection level Da
CE marking 0102
ATEX marking ¬ II 1D Ex ia IIIC T135°C Da
Standards EN 60079-0:2012+A11:2013, EN 60079-11:2012
Appropriate type NJ 20-40-N...
Effective internal inductivity C
Effective internal inductance L
Special conditions
i
i
i
i
The Ex-related marking can also be printed on the enclosed label.
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
≤ 140 nF ; a cable length of 10 m is considered.
≤ 140 µH ; a cable length of 10 m is considered.
Details of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the
amb
temperature class, and the effective internal reactance values can be found on the EU-type examination certificate.
The Ex-related marking can also be printed on the enclosed label.
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
≤ 140 µF
A cable length of 10 m is considered.
≤ 140 µH
A cable length of 10 m is considered.
Release date: 2017-05-30 13:22 Date of issue: 2018-02-16 106498_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
2
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