Serviceline Industrial Sensors
Serviceline Explosion Protection

Inductive sensor NCB8-18GM40-N0-OG

NCB8-18GM40-N0-OG
  • 8 mm flush
  • Usable up to SIL 2 acc. to IEC 61508


NAMUR sensors must be operated with approved switch amplifiers. Please find suitable devices below:

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  NCB8-18GM40-N0-OG

General specifications
Switching functionNormally closed (NC)
Output typeNAMUR
Rated operating distance8 mm
Installationflush
Assured operating distance0 ... 6.48 mm
Actual operating distance7.2 ... 8.8 mm typ. 8 mm
Reduction factor rAl 0.39
Reduction factor rCu 0.36
Reduction factor r304 0.71
Output type2-wire
Nominal ratings
Nominal voltage8.2 V (Ri approx. 1 kΩ)
Switching frequency0 ... 1500 Hz
Hysteresis1 ... 15 typ. 5 %
Reverse polarity protectionreverse polarity protected
Short-circuit protectionyes
Suitable for 2:1 technologyyes , Reverse polarity protection diode not required
Current consumption
Measuring plate not detectedmin. 2.2 mA
Measuring plate detected≤ 1 mA
Switching state indicatorall direction LED, yellow
Functional safety related parameters
MTTFd2660 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Compliance with standards and directives
Standard conformity
NAMUREN 60947-5-6:2000
IEC 60947-5-6:1999
Electromagnetic compatibilityNE 21:2007
StandardsEN 60947-5-2:2007
EN 60947-5-2/A1:2012
IEC 60947-5-2:2007
IEC 60947-5-2 AMD 1:2012
Approvals and certificates
UL approval
Ordinary LocationE87056
Hazardous LocationE501628
Control drawing116-0452
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-25 ... 80 °C (-13 ... 176 °F)
Storage temperature-40 ... 80 °C (-40 ... 176 °F)
Mechanical specifications
Connection typecable PUR (halogen-free) , 2 m blue , Oil resistant , Flame-retardant as per IEC 60332-1
Mud-resistant according to IEC61892-4, appendix D
Flexible at temperatures as low as -40 °C
Core cross-section2x 1 mm2 , black
Housing materialStainless steel 1.4305 / AISI 303
Sensing facePBT
Degree of protectionIP66 / IP67
Cable
Bending radius> 5 x cable diameter
Equipment protection level Ga
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1G Ex ia IIC T6…T1 Ga
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeNCB8-18GM...-N0...
Effective internal capacitancemax. 120 nF ; a cable length of 10 m is considered.
Effective internal inductancemax. 50 µH ; a cable length of 10 m is considered.
Highest permissible ambient temperatureDetails of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the temperature class, and the effective internal reactance values can be found on the EU-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.
Equipment protection level Gb
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1G Ex ia IIC T6…T1 Ga
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeNCB8-18GM...-N0...
Effective internal capacitancemax. 120 nF ; a cable length of 10 m is considered.
Effective internal inductancemax. 50 µH ; a cable length of 10 m is considered.
Maximum permissible ambient temperatureDetails of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the temperature class, and the effective internal reactance values can be found on the EU-type examination certificate.
Equipment protection level Gc (ic)
CertificatePF 13 CERT 2895 X
CE marking[*PD-Z02586A*]
ATEX markingEx-Hexagon II 3G Ex ic IIC T6…T1 Gc
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection category "ic"
Use is restricted to the following stated conditions
Effective internal capacitancemax. 120 nF ; a cable length of 10 m is considered.
Effective internal inductancemax. 50 µH ; A cable length of 10 m is considered.
Special conditions
for Pi=34 mW, Ii=25 mA, T655 °C (131 °F)
for Pi=34 mW, Ii=25 mA, T555 °C (131 °F)
for Pi=34 mW, Ii=25 mA, T4-T155 °C (131 °F)
for Pi=64 mW, Ii=25 mA, T655 °C (131 °F)
for Pi=64 mW, Ii=25 mA, T555 °C (131 °F)
for Pi=64 mW, Ii=25 mA, T4-T155 °C (131 °F)
for Pi=169 mW, Ii=52 mA, T641 °C (105.8 °F)
for Pi=169 mW, Ii=52 mA, T541 °C (105.8 °F)
for Pi=169 mW, Ii=52 mA, T4-T141 °C (105.8 °F)
for Pi=242 mW, Ii=76 mA, T629 °C (84.2 °F)
for Pi=242 mW, Ii=76 mA, T529 °C (84.2 °F)
for Pi=242 mW, Ii=76 mA, T4-T129 °C (84.2 °F)
Equipment protection level Da
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1D Ex ia IIIC T135°C Da
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeNCB8-18GM...-N0...
Effective internal capacitancemax. 120 µF
A cable length of 10 m is considered.
Effective internal inductancemax. 50 µH
A cable length of 10 m is considered.
General information
Use in the hazardous areasee instruction manuals
Category1G; 2G; 3G

Documents: NCB8-18GM40-N0-OG

Instruction manualsLanguageFile TypeFile Size
Instruction manualENGPDF59 KB
Manuel d'instructionsFRAPDF60 KB
BetriebsanleitungGERPDF60 KB
Manuale di istruzioniITAPDF57 KB
Manual de instruccionesSPAPDF60 KB

Approvals+Certificates: NCB8-18GM40-N0-OG

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0623CPDF347 KB
Certificates
Canada USA UL Hazardous LocationE501628:1:2PDF444 KB
EU PTB ATEX ia 2G, 1G, 1D s. certificatePTB 00 ATEX 2048 XPDF29071 KB
Europe Pepperl+Fuchs Certificate ATEX Category 3PF13CERT2895XPDF1101 KB
Pepperl+Fuchs Declaration of Conformity Functional SafetyPF 10 CERT 1537PDF1338 KB
Worldwide PTB IECEx iaIECEx PTB 11.0037XLINK---
Control drawings
Control drawing UL / Control drawing UL   PDF286 KB

Associated Products: NCB8-18GM40-N0-OG

Accessories

Quick mounting bracket with dead stopfa

Mounting flange, 18 mmfa