
Inductive sensor NCB15-30GM40-N0
Technical Data
General specifications
Switching function  Normally closed (NC) 
Output type  NAMUR 
Rated operating distance  sn15 mm 
Installation quasi flush 
Assured operating distance  sa0 ... 12.15 mm
0102
Model Number
NCB15-30GM40-N0
Features
• 15 mm quasi flush
• Usable up to SIL 2 acc. to IEC 61508
Accessories
BF 30
Mounting flange, 30 mm
Actual operating distance  s 
Reduction factor rAl  0.33 
Reduction factor r 
Reduction factor r 
Output type  2-wire
Nominal ratings
Nominal voltage  Uo8 V 
Switching frequency  f 0 ... 450 Hz 
Hysteresis  H 1 ... 15 typ. 5 % 
Reverse polarity protection  reverse polarity protected 
Short-circuit protection  yes 
Current consumption   
Measuring plate not detected 
Measuring plate detected 
Switching state indicator  LED, yellow
Functional safety related parameters
MTTFd 3068 a 
Mission Time (TM)  20 a 
Diagnostic Coverage (DC)  0 %
Ambient conditions
Ambient temperature  -25 ... 100 °C (-13 ... 212 °F) 
Storage temperature  -40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Connection type  cable PVC , 2 m 
Core cross-section  0.75 mm 
Housing material  Stainless steel 1.4305 / AISI 303 
Sensing face  PBT 
Degree of protection  IP66 / IP67 
Cable 
Bending radius 
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 
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
  0.29
Cu
  0.76
304
Dimensions
13.5 ... 16.5 mm typ.
r
≥ 2.2 mA 
≤ 1 mA
2
> 10 x cable diameter
1G; 2G; 3G; 1D; 3D
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
116-0165
Release date: 2018-04-19 08:11 Date of issue: 2018-04-19 181091_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
M30x1,5
LED
37
40
5
36
1
 

Inductive sensor NCB15-30GM40-N0
Electrical Connection
Installation Hint
BN
BU
L+
L-
Installation conditions
Metal
A
B
A = 5 mm 
B = 15 mm
Equipment protection level Ga
CE marking  0102
ATEX marking  ¬ II 1G Ex ia IIC T6…T1 Ga 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  NCB15-30GM...-N0...
Effective internal inductivity  C
Effective internal inductance  L
Ambient temperature  Details of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the 
Equipment protection level Gb
CE marking  0102
ATEX marking  ¬ II 1G Ex ia IIC T6…T1 Ga 
Standards  EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection "Intrinsic safety" 
Appropriate type  NCB15-30GM...-N0...
Effective internal inductivity  C
Effective internal inductance  L
Maximum permissible ambient temperature T
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
i
i
i
i
Use is restricted to the following stated conditions
≤ 120 nF ; a cable length of 10 m is considered.
≤ 150 µH ; a cable length of 10 m is considered.
temperature class, and the effective internal reactance values can be found on the EC-type examination certificate. 
Note:
 Use the temperature table for category 1 !!! The 20 % reduction in accordance with EN 1127-1 has already 
been applied to the temperature table for category 1.
The Ex-significant identification is on the enclosed adhesive label
Use is restricted to the following stated conditions
≤ 120 nF ; a cable length of 10 m is considered.
≤ 150 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.
2
Release date: 2018-04-19 08:11 Date of issue: 2018-04-19 181091_eng.xml
 

Inductive sensor NCB15-30GM40-N0
Equipment protection level Gc (ic)
Certificate  PF 13 CERT 2895 X
CE marking 
ATEX marking  ¬ II 3G Ex ic IIC T6…T1 Gc 
Standards  EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection category "ic" Use is restricted to the following 
Effective internal inductivity  C
Effective internal inductance  L
Special conditions   
   for Pi=34 mW, Ii=25 mA, T6 
   for Pi=34 mW, Ii=25 mA, T5 
   for Pi=34 mW, Ii=25 mA, T4-T1 
   for Pi=64 mW, Ii=25 mA, T6 
   for Pi=64 mW, Ii=25 mA, T5 
   for Pi=64 mW, Ii=25 mA, T4-T1 
   for Pi=169 mW, Ii=52 mA, T6 
   for Pi=169 mW, Ii=52 mA, T5 
   for Pi=169 mW, Ii=52 mA, T4-T1 
   for Pi=242 mW, Ii=76 mA, T6 
   for Pi=242 mW, Ii=76 mA, T5 
   for Pi=242 mW, Ii=76 mA, T4-T1 
Equipment protection level Gc (nL)
Standard conformity  EN 60079-15:2005 Ignition protection category "n"
Effective internal capacitance C
Effective internal inductance Li  ≤ 150 µH ; A cable length of 10 m is considered.
General  The apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. 
Special conditions   
   for Pi=34 mW, Ii=25 mA, T6 
   for Pi=34 mW, Ii=25 mA, T5 
   for Pi=34 mW, Ii=25 mA, T4-T1 
   for Pi=64 mW, Ii=25 mA, T6 
   for Pi=64 mW, Ii=25 mA, T5 
   for Pi=64 mW, Ii=25 mA, T4-T1 
   for Pi=169 mW, Ii=52 mA, T6 
   for Pi=169 mW, Ii=52 mA, T5 
   for Pi=169 mW, Ii=52 mA, T4-T1 
   for Pi=242 mW, Ii=76 mA, T6 
   for Pi=242 mW, Ii=76 mA, T5 
   for Pi=242 mW, Ii=76 mA, T4-T1 
i
i
  ≤ 120 nF ; a cable length of 10 m is considered.
i
The Ex-significant identification is on the enclosed adhesive label
stated conditions
≤ 120 nF ; a cable length of 10 m is considered.
≤ 150 µH ; A cable length of 10 m is considered.
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
41 °C (105.8 °F)
41 °C (105.8 °F)
41 °C (105.8 °F)
29 °C (84.2 °F)
29 °C (84.2 °F)
29 °C (84.2 °F)
Use is restricted to the following stated conditions
The data stated in the data sheet are restricted by this operating instruction! 
The special conditions must be observed! 
The ATEX Directive applies only to the use of apparatus under atmospheric conditions. 
If you use the device outside atmospheric conditions, consider that the permissible safety parameters should be 
reduced.
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
55 °C (131 °F)
41 °C (105.8 °F)
41 °C (105.8 °F)
41 °C (105.8 °F)
29 °C (84.2 °F)
29 °C (84.2 °F)
29 °C (84.2 °F) 
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  NCB15-30GM...-N0...
Effective internal inductivity  C
Effective internal inductance  L
Maximum permissible ambient temperature T
Equipment protection level Dc
CE marking  0102
ATEX marking  ¬ II 3D IP67 T 111 °C (231.8 °F) X
Standards  EN 50281-1-1 
Special conditions 
Maximum heating (Temperature rise) 
   at U
   using an amplifier in accordance with EN 609475-6 
Release date: 2018-04-19 08:11 Date of issue: 2018-04-19 181091_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
=9 V, RV=562 Ω 
Bmax
i
i
Use is restricted to the following stated conditions
≤ 120 nF A cable length of 10 m is considered.
≤ 150 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.
Protection via housing  
Use is restricted to the following stated conditions
Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum 
series resistance Rv.
11 K
11 K
3
 

Inductive sensor NCB15-30GM40-N0
Equipment protection level Dc (tc)
CE marking 
ATEX marking  ¬ II 3D Ex tc IIIC T80°C Dc 
Standards  EN 60079-0:2012+A11:2013, EN 60079-31:2014 
General  The corresponding datasheets, declarations of conformity, EC-type examination certificates, certifications, and 
Special conditions   
Maximum permissible ambient temperature T
   at U
   using an amplifier in accordance with EN 609475-6 
Equipment protection level Dc (tD)
General  The apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. 
Special conditions 
Minimum series resistance RV 
Maximum permissible ambient temperature T
   at U
   using an amplifier in accordance with EN 609475-6 
=9 V, RV=562 Ω 
Bmax
=9 V, RV=562 Ω 
Bmax
The Ex-related marking can also be printed on the enclosed label.
Protection by enclosure "tc" Some of the information in this instruction manual is more specific than the information 
provided in the datasheet.
control draw see datasheets), form an integral part of this document. These documents can 
be found at   The maximum surface temperature of the device was determined without a 
layer of dust  of the information in this instruction manual is more specific than the 
information provided in the datasheet.
Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum 
Umax
series resistance Rv.
58 °C (136.4 °F)
58 °C (136.4 °F)
The maximum surface temperature has been determined in accordance with method A without a dust layer on the 
equipment. 
The data stated in the data sheet are restricted by this operating instruction! 
The special conditions must be adhered to!
A minimum series resistance RV is to be provided between the power supply voltage and the proximity switch in 
accordance with the following list. This can also be assured by using a switch amplifier.
Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum 
Umax
series resistance Rv.
58 °C (136.4 °F)
58 °C (136.4 °F)
Release date: 2018-04-19 08:11 Date of issue: 2018-04-19 181091_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
4