Turck BC20-K40SR-FDZ3X2 Data Sheet
Capacitive sensor
BC20-K40SR-FDZ3X2 W/M16X1.5
Type designation BC20-K40SR-FDZ3X2 W/M16X1.5
Ident-No. 2204001
Rated switching distance (flush) 20 mm
Rated switching distance (non-flush) 30 mm
Secured operating distance
Hysteresis 2…20 %
Temperature drift type 20 %
Repeat accuracy
Ambient temperature -25…+70 °C
Operating voltage 20…250VAC
Operating voltage 3…250 VDC
AC rated operational current
DC rated operational current
Frequency
Smallest operating current I
Residual current
Switching frequency 0.02 kHz
Isolation test voltage
Output function 2-wire, Connection programmable, 2-wire
Voltage drop at I
e
m
ð (0.72 x Sn) mm
ð 2 % of full scale
ð 400 mA
ð 200 mA
ï 50…ð 60 Hz
ï 5 mA
ð 1.7 mA
ð 1.5 kV
ð 7 V
■ 2 cable entries (axial, radial)
■ Smooth barrel, Ø 40 mm
■ Plastic, ABS
■ Fine adjustment via potentiometer
■ AC 2-wire, 20…250 VAC
■ DC 2-wire, 3…320 VDC
■ Programmable connection (NC/NO)
■ Terminal chamber
Wiring Diagram
Functional principle
Capacitive proximity switches are designed
for non-contact and wear-free detection of
electrically conductive as well as non-conductive metal objects.
Design Smooth barrel,40 mm
Dimensions 90 mm
Housing material Plastic, ABS
Active area material Plastic, ABS
Electrical connection Terminal chamber
Clamping ability
Vibration resistance 55 Hz (1 mm)
Shock resistance 30 g (11 ms)
Protection class IP67
MTTF 1080 years acc. to SN 29500 (Ed. 99) 40 °C
Packaging unit 1
Power-on indication LED,Green
Switching state LED,Yellow
Included in delivery BS40, cable gland, blanking plug
Edition • 2018-04-06T16:31:12+02:00
1 / 3 TURCK Inc.
ð 2.5 mm
2
Capacitive sensor
BC20-K40SR-FDZ3X2 W/M16X1.5
Mounting instructions/Description minimum distances
Distance D 40 mm
Distance W 60 mm
Distance S 60 mm
Distance G 120 mm
Diameter active area B Ø 40 mm
The given minimum distances have been checked in
compliance with the standard switching distance.
Should the sensitivity of the sensors be changed via
potentiometer, the data sheet specifications no longer
apply.
Edition • 2018-04-06T16:31:12+02:00
2 / 3 TURCK Inc.
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