
Inductive sensor NCB1,5-6,5M25-N0-V1
Technical Data
General specifications
Switching function  Normally closed (NC) 
Output type  NAMUR 
Rated operating distance  sn1.5 mm 
Installation flush 
Assured operating distance  sa0 ... 1.215 mm
0102
Model Number
NCB1,5-6,5M25-N0-V1
Features
•1.5 mm flush
Accessories
V1-G
Female connector, M12, 4-pin, field attachable
V1-W
Female connector, M12, 4-pin, field attachable
V1-W-N-2M-PUR
Female cordset, M12, 2-pin, NAMUR, PUR cable
BF 6,5
Mounting flange, 6.5 mm
V1-G-N-2M-PUR
Female cordset, M12, 2-pin, NAMUR, PUR cable
Actual operating distance  s 
Reduction factor rAl  0.22 
Reduction factor r 
Reduction factor r 
Output type  2-wire
Nominal ratings
Nominal voltage  Uo8.2 V (Ri approx. 1 kΩ) 
Switching frequency  f 0 ... 2000 Hz 
Hysteresis  H 1 ... 10 typ. 3 % 
Reverse polarity protection  reverse polarity protected 
Short-circuit protection  yes 
Suitable for 2:1 technology  yes , Reverse polarity protection diode not required 
Current consumption   
Measuring plate not detected 
Measuring plate detected 
Switching state indicator  Multihole-LED, yellow
Ambient conditions
Ambient temperature  -25 ... 100 °C (-13 ... 212 °F) 
Storage temperature  -40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Connection type  Connector plug M12 x 1 , 4-pin 
Housing material  Stainless steel 1.4305 / AISI 303 
Sensing face  LCP 
Degree of protection  IP67
General information
Use in the hazardous area  see instruction manuals
Category 
Compliance with standards and 
directives
Standard conformity   
NAMUR 
Electromagnetic compatibility 
Standards 
Approvals and certificates
EAC conformity  TR CU 012/2011 
UL approval  cULus Listed, General Purpose 
CSA approval  cCSAus Listed, General Purpose 
CCC approval  CCC approval / marking not required for products rated ≤36 V
  0.19
Cu
  0.65
304
Dimensions
1.35 ... 1.65 mm typ.
r
≥ 3 mA 
≤ 1 mA
2G
EN 60947-5-6:2000 
IEC 60947-5-6:1999 
NE 21:2007 
EN 60947-5-2:2007 
EN 60947-5-2/A1:2012 
IEC 60947-5-2:2007 
IEC 60947-5-2 AMD 1:2012
Electrical Connection
LED
M12 x 1
1
2
L+
L-
ø 6.5
256
37
47
Release date: 2018-04-19 08:10 Date of issue: 2018-04-19 128863_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
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Inductive sensor NCB1,5-6,5M25-N0-V1
Wire colors in accordance with EN 60947-5-6
1  BN 
2  BU
Equipment protection level Gb
CE marking  0102
ATEX marking  ¬ II 2G Ex ia IIC T6…T1 Gb The Ex-related marking can also be printed on the enclosed label.
Standards  EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection "Intrinsic safety" 
Appropriate type  NCB1,5...M...N0...
Effective internal inductivity  C
Effective internal inductance  L
Maximum permissible ambient temperature T
Equipment protection level Da
CE marking  0102
ATEX marking  ¬ II 1D Ex ia IIIC T135°C Da The Ex-related marking can also be printed on the enclosed label.
Standards  EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection "Intrinsic safety" 
Appropriate type  NCB1,5...M...N0...
Effective internal inductivity  C
Effective internal inductance  L
Maximum permissible ambient temperature T
i
i
i
i
(brown) 
(blue)
Use is restricted to the following stated conditions
≤ 90 nF ; a cable length of 10 m is considered.
≤ 100 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 EC-type examination certificate.
Use is restricted to the following stated conditions
≤ 90 nF ; a cable length of 10 m is considered.
≤ 100 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
surface temperature, and the effective internal reactance values can be found on the EC-type-examination 
certificate. 
The maximum permissible ambient temperature of the data sheet must be noted, in addition, the lower of 
the two values must be maintained.
Release date: 2018-04-19 08:10 Date of issue: 2018-04-19 128863_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
2