Inductive sensor NCB20-L2-N0-V1

Sensor head bidirectional and rotatable
20 mm flush
Quick mounting bracket
Usable up to SIL 2 acc. to IEC 61508

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

Go to our Switch Amplifiers

Datasheet
Documents
CAD+CAE
Approvals+Certificates
Associated Products

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of NCB20-L2-N0-V1

General specifications
Switching function		Normally closed (NC)
Output type		NAMUR
Rated operating distance		20 mm
Installation		flush
Assured operating distance		0 ... 16.2 mm
Actual operating distance		18 ... 22 mm
Reduction factor r_Al		0.33
Reduction factor r_Cu		0.31
Reduction factor r₃₀₄		0.74
Nominal ratings
Nominal voltage		8.2 V (R_i approx. 1 kΩ)
Switching frequency		0 ... 300 Hz
Hysteresis		typ. 5 %
Reverse polarity protection		reverse polarity protected
Short-circuit protection		yes
Current consumption
	Measuring plate not detected	≥ 2.2 mA
	Measuring plate detected	≤ 1 mA
Switching state indicator		LED, yellow
Functional safety related parameters
MTTF_d		1660 a
Mission Time (T_M)		20 a
Diagnostic Coverage (DC)		0 %
Compliance with standards and directives
Standard conformity
	NAMUR	EN 60947-5-6:2000 IEC 60947-5-6:1999
	Standards	EN 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
EAC conformity		TR CU 012/2011
Protection class		II
	Rated insulation voltage	253 V
	Rated impulse withstand voltage	4000 V
UL approval		cULus Listed, General Purpose
CCC approval		CCC approval / marking not required for products rated ≤36 V
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		PA
Sensing face		PA
Degree of protection		IP66 / IP69K
Mass		130 g
Equipment protection level Ga
CE marking		[PD-Z02585A]
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" Use is restricted to the following stated conditions
Appropriate type		NCB20-L2-N0...
Effective internal capacitance		max. 110 nF ; a cable length of 10 m is considered.
Effective internal inductance		max. 200 µH ; a cable length of 10 m is considered.
Ambient temperature		Details 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 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.
Equipment protection level Gb
CE marking		[PD-Z02585A]
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" Use is restricted to the following stated conditions
Appropriate type		NCB20-L2-N0...
Effective internal capacitance		max. 110 nF ; a cable length of 10 m is considered.
Effective internal inductance		max. 200 µH ; a cable length of 10 m is considered.
Maximum permissible ambient temperature		Details 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 EC-type examination certificate.
Equipment protection level Gc (ic)
Certificate		PF 13 CERT 2895 X
CE marking		[PD-Z02586A]
ATEX marking		II 3G Ex ic IIC T6…T1 Gc The Ex-related marking can also be printed on the enclosed label.
Standards		EN 60079-0:2012, EN 60079-11:2012 Ignition protection category "ic" Use is restricted to the following stated conditions
Effective internal capacitance		max. 110 nF ; a cable length of 10 m is considered.
Effective internal inductance		max. 200 µH ; A cable length of 10 m is considered.
Special conditions
	for Pi=34 mW, Ii=25 mA, T6	66 °C (150.8 °F)
	for Pi=34 mW, Ii=25 mA, T5	81 °C (177.8 °F)
	for Pi=34 mW, Ii=25 mA, T4-T1	100 °C (212 °F)
	for Pi=64 mW, Ii=25 mA, T6	66 °C (150.8 °F)
	for Pi=64 mW, Ii=25 mA, T5	81 °C (177.8 °F)
	for Pi=64 mW, Ii=25 mA, T4-T1	100 °C (212 °F)
	for Pi=169 mW, Ii=52 mA, T6	45 °C (113 °F)
	for Pi=169 mW, Ii=52 mA, T5	60 °C (140 °F)
	for Pi=169 mW, Ii=52 mA, T4-T1	89 °C (192.2 °F)
	for Pi=242 mW, Ii=76 mA, T6	30 °C (86 °F)
	for Pi=242 mW, Ii=76 mA, T5	45 °C (113 °F)
	for Pi=242 mW, Ii=76 mA, T4-T1	74 °C (165.2 °F)
Equipment protection level Gc (nL)
Standard conformity		EN 60079-15:2005 Ignition protection category "n" Use is restricted to the following stated conditions
Effective internal capacitance C_i		max. 110 nF ; a cable length of 10 m is considered.
Effective internal inductance L_i		max. 200 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. 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.
Special conditions
	for Pi=34 mW, Ii=25 mA, T6	66 °C (150.8 °F)
	for Pi=34 mW, Ii=25 mA, T5	81 °C (177.8 °F)
	for Pi=34 mW, Ii=25 mA, T4-T1	100 °C (212 °F)
	for Pi=64 mW, Ii=25 mA, T6	66 °C (150.8 °F)
	for Pi=64 mW, Ii=25 mA, T5	81 °C (177.8 °F)
	for Pi=64 mW, Ii=25 mA, T4-T1	100 °C (212 °F)
	for Pi=169 mW, Ii=52 mA, T6	45 °C (113 °F)
	for Pi=169 mW, Ii=52 mA, T5	60 °C (140 °F)
	for Pi=169 mW, Ii=52 mA, T4-T1	89 °C (192.2 °F)
	for Pi=242 mW, Ii=76 mA, T6	30 °C (86 °F)
	for Pi=242 mW, Ii=76 mA, T5	45 °C (113 °F)
	for Pi=242 mW, Ii=76 mA, T4-T1	74 °C (165.2 °F)
Equipment protection level Da
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" Use is restricted to the following stated conditions
Appropriate type		NCB20-L2-N0...
Effective internal capacitance		max. 110 nF ; a cable length of 10 m is considered.
Effective internal inductance		max. 200 µH ; a cable length of 10 m is considered.
Equipment protection level Dc
CE marking		[PD-Z02585A]
ATEX marking		II 3D IP69K T 112 °C (233.6 °F) X
Standards		EN 50281-1-1 Protection via housing Use is restricted to the following stated conditions
Special conditions
	Maximum heating (Temperature rise)	Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum series resistance Rv.
	at U_Bmax=9 V, R_V=562 Ω	12 K
	using an amplifier in accordance with EN 60947-5-6	12 K
Equipment protection level Dc (tc)
CE marking		[PD-Z02586A]
ATEX marking		II 3D Ex tc IIIC T80°C Dc The Ex-related marking can also be printed on the enclosed label.
Standards		EN 60079-0:2012+A11:2013, EN 60079-31:2014 Protection by enclosure "tc" Some of the information in this instruction manual is more specific than the information provided in the datasheet.
General		The corresponding datasheets, declarations of conformity, EC-type examination certificates, certifications, and control drawings, where applicable (see datasheets), form an integral part of this document. These documents can be found at www.pepperl-fuchs.com. The maximum surface temperature of the device was determined without a layer of dust on the apparatus. Some of the information in this instruction manual is more specific than the information provided in the datasheet.
Special conditions
	Maximum permissible ambient temperature T_Umax	Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum series resistance Rv.
	at U_Bmax=9 V, R_V=562 Ω	57 °C (134.6 °F)
	using an amplifier in accordance with EN 60947-5-6	57 °C (134.6 °F)
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. 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!
Special conditions
	Minimum series resistance R_V	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.
	Maximum permissible ambient temperature T_Umax	Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum series resistance Rv.
	at U_Bmax=9 V, R_V=562 Ω	57 °C (134.6 °F)
	using an amplifier in accordance with EN 60947-5-6	57 °C (134.6 °F)
General information
Use in the hazardous area		see instruction manuals
	Category	1G; 2G; 3G; 3D

Documents: NCB20-L2-N0-V1

Instruction manuals	Language	File Type	File Size
Instruction manual	ENG	PDF	68 KB
Manuel d'instructions	FRA	PDF	70 KB
Betriebsanleitung	GER	PDF	68 KB
Manuale di istruzioni	ITA	PDF	66 KB
Manual de instrucciones	SPA	PDF	70 KB
Technical information
Installation conditions	ENG	PDF	195 KB
Einbaubedingungen	GER	PDF	229 KB

CAD+CAE: NCB20-L2-N0-V1

CAD	File Type	File Size
3-D model in IGS format / 3-D-Modell im IGS-Format	IGS	511 KB
3-D model in STP format / 3-D-Modell im STP-Format	STP	381 KB
CAD Portal / CAD Portal	LINK	---
EPLAN
EPLAN Data Portal / EPLAN Data Portal	LINK	---
EPLAN macro EDZ / EPLAN Makro EDZ	EDZ	70 KB

Approvals+Certificates: NCB20-L2-N0-V1

Statements of compliance	Certificate No.	File Type	File Size
EU-Declaration of conformity / EU-Konformitätserklärung	DOC-1745A	PDF	347 KB
Certificates
Canada USA CSA Ordinary Location	1007121	PDF	99 KB
EU PTB ATEX ia 2G, 1G, 1D s. certificate	PTB 00 ATEX 2032 X	PDF	29293 KB
Europe Pepperl+Fuchs ATEX Category 3 D Certificate	PF15CERT3774X	PDF	1001 KB
Europe Pepperl+Fuchs Certificate ATEX Category 3	PF13CERT2895X	PDF	1101 KB
Pepperl+Fuchs Declaration of Conformity Functional Safety	PF 10 CERT 1666A	PDF	1025 KB
Russia NANIO "CCVE"	TC RU C-DE.AA87.B.00394	PDF	3971 KB
US CA UL General Purpose	E87056	LINK	---
Worldwide PTB IECEx ia	IECEx PTB 11.0021X	LINK	---

Associated Products: NCB20-L2-N0-V1

Accessories

	V1-G-N-2M-PUR Cable connector, NAMUR
	Female cordset, M12, 2-pin, NAMUR, PUR cablefa

	V1-W-N-2M-PUR Cable connector, NAMUR
	Female cordset, M12, 2-pin, NAMUR, PUR cablefa

	MHW 01 Mounting aid
	Modular mounting bracket fa

General Notes Relating to Pepperl+Fuchs Product Information

Quick Links

Pepperl+Fuchs GmbH
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
Phone: +49 621 776-0

Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,200 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.