Pepperl+Fuchs NBB20-U1-UU 238884

Manufacturer

Pepperl+Fuchs

Name

NBB20-U1-UU

Part number

238884

Country

Germany

Type

Inductive sensor

Weight (g)

261

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General specifications
Switching function	Normally open/closed (NO/NC)
Output type	Two-wire
Rated operating distance	20 mm
Installation	flush
Output polarity	AC/DC
Assured operating distance	0 ... 16.2 mm
Actual operating distance	18 ... 22 mm
Reduction factor rAl	0.4
Reduction factor rCu	0.3
Reduction factor r304	0.77
Reduction factor rFe	1
Reduction factor rBrass	0.43
Output type	2-wire
Nominal ratings
Switching frequency	AC, 0 ... 30 Hz DC, 0 ... 100 Hz
Hysteresis	1 ... 10 typ. 5 %
Reverse polarity protection	reverse polarity tolerant
Short-circuit protection	pulsing
Voltage drop	&le, 5 V (typ. 2V) DC operation &le, 8 V (typ. 3 V) AC operation
Momentary current (20 ms, 0.1 Hz)	0 ... 3000 mA
Operating current	5 ... 500 mA
Off-state current	&le, 1.5 mA
Operating voltage indicator	LED, green
Switching state indicator	LED, yellow
Error indicator	flashes when overcurrent
Functional safety related parameters
MTTFd	540 a
Mission Time (TM)	20 a
Diagnostic Coverage (DC)	0 %
Electrical specifications
Operating voltage	20 ... 300 V DC / 20 ... 253 V AC
Approvals and certificates
Protection class	II
	Rated insulation voltage	230 V
	Rated impulse withstand voltage	2.5 kV
UL approval	cULus Listed, General Purpose For use in NFPA 79 Applications only For overcurrent protection, install a fuse with a rated current of max. 3 A and at least 300 V AC/DC
CCC approval	Ue 75VDC - 250VDC Ue 75VAC - 230VAC
Ambient conditions
Ambient temperature	-25 ... 85 °C (-13 ... 185 °F)
Storage temperature	-25 ... 85 °C (-13 ... 185 °F)
Mechanical specifications
Connection type	terminal compartment
Information for connection	A maximum of two conductors with the same core cross section may be mounted on one terminal connection! tightening torque 1.2 Nm + 10 %
Core cross-section	up to 2.5 mm2
	Minimum core cross-section	without wire end ferrule 0.5 mm2 , with connector sleeves 0.34 mm2
	Maximum core cross-section	without wire end ferrule 2.5 mm2 , with connector sleeves 1.5 mm2
Housing material	PA 6.6 / metal
Sensing face	PA 6.6
Degree of protection	IP67