IFM KB0029 - Capacitive sensor KB-2020-BBOA/NI

With combined AC/DC output stage.
Two-wire technology.
Smooth plastic housing to protect against deposits.
Easy setting of the sensing range via potentiometer.
High noise immunity

Output function	normally closed
Sensing range [mm]	3...20
Housing	cylindrical
Dimensions [mm]	Ø 34 / L = 81

Operating voltage [V]	20...250 AC/DC
Protection class	II
Reverse polarity protection	no

Outputs

Output function	normally closed
Max. voltage drop switching output DC [V]	8
Max. voltage drop switching output AC [V]	10
Minimum load current [mA]	5
Max. leakage current [mA]	2.5 (250 V AC) / 1.7 (110 V AC) / 1.5 (24 V DC)
Permanent current rating of switching output AC [mA]	200;(for UL application: 250 / 100 DC)
Permanent current rating of switching output DC [mA]	200;(for UL application: 250 AC / 100 DC)
Short-time current rating of switching output [mA]	1500;(20 ms / 0,5 Hz)
Switching frequency AC [Hz]	25
Switching frequency DC [Hz]	40
Short-circuit proof	no
Overload protection	no

Detection zone

Sensing range [mm]	3...20
Sensing range adjustable	yes
Factory setting sensing range [mm]	20
Real sensing range Sr [mm]	20 ± 10 %
Operating distance [mm]	0...16.2

Accuracy / deviations

Correction factor	glass: 0.4 / water: 1 / ceramics: 0.2 / PVC: 0.2
Hysteresis [% of Sr]	1...15
Switch point drift [% of Sr]	-15...15

Operating conditions

Ambient temperature [°C]	-25...70
Protection	IP 65
Increased immunity	yes;(increased immunity to conducted radio frequency interference)

Tests / approvals

EMC	EN 60947-5-2
MTTF [years]	488

Weight [g]	258.5
Housing	cylindrical
Mounting	non-flush mountable
Dimensions [mm]	Ø 34 / L = 81
Materials	PBT

Displays / operating elements

Display	switching status 1 x LED, yellow

Electrical connection

Required protection	miniature fuse to IEC60127-2 sheet 1; ≤ 2 A; fast acting

Accessories

Items supplied	Mounting clamps: 2 cylinder screws: 2 spring discs: 2

Remarks	Recommendation: Check the safe functioning of the unit after a short circuit.
Pack quantity	1 pcs.

Electrical connection

Connection	Cable: 2 m, PVC; 2 x 0.5 mm²

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — KB0029-02 — 29.04.2022 —