
Pepperl Fuchs LB1103A
Frequency / Counter Input
- MPN
- LB1103A
- Category
- LB (Zone 2, Class I/Div. 2)
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What is the Pepperl Fuchs LB1103A?
1-channel
Input Ex ia
Mounting in Zone 2, Class I/Div.2 or in the safe area
Input for frequency, counter, direction of rotation
Digital input max. 15 kHz
Positive or negative logic selectable
Simulation mode for service operations (forcing)
Line fault detection (LFD)
Permanently self-monitoring
Module can be exchanged under voltage
1-channel, Input Ex ia, Mounting in Zone 2, Class I/Div.2 or in the safe area, Input for frequency, counter, direction of rotation, Explosion protection: Ex ia, Function: Counter , Function [2]: frequency, Function [3]: direction of rotation, Connection: NAMUR sensor, Connection [2]: volt-free contact
Specifications
Slots
| Order code (Pepperl+Fuchs part number) | 254622 |
| Occupied slots | 1 |
| Lifecycle | Active (current Pepperl+Fuchs product) |
Supply
| Connection | backplane bus |
| Rated voltage | 12 V DC , only in connection with the power supplies LB9*** Ur |
| Power dissipation | 0.65 W |
| Power consumption | 0.65 W |
Internal bus
| Connection | backplane bus |
| Interface | manufacturer-specific bus to standard com unit |
Digital input
| Number of channels | 1 |
| Function: Function | Counter |
| Function: Function [2] | frequency |
| Function: Function [3] | direction of rotation |
| Sensor interface: Connection | NAMUR sensor |
| Sensor interface: Connection [2] | volt-free contact |
| Connection | channel I: 1+, 2/3-; direction: 4+, 5/6- |
| Rated values | acc. to EN 60947-5-6 (NAMUR) |
| Switching point/switching hysteresis | 1.2 ... 2.1 mA / ± 0.2 mA |
| Voltage | 8.2 V |
| Internal resistor | 1 kΩ Ri |
| Line fault detection | can be switched on/off for each channel via configuration tool |
| Connection | mechanical switch with additional resistors (see connection diagram) proximity sensors without additional wiring |
| Short-circuit | < 360 Ω |
| Open-circuit | < 0.35 mA |
| Minimum pulse duration | ; in frequency + counter mode: 12.5 ms ; otherwise 20 µs |
| Operating frequency | 0 ... 15 kHz ; in frequency + counter mode ... 40 Hz |
Indicators/settings
| LED indication | Power LED (P) green: supply Status LED (1) red: line fault |
| Coding | optional mechanical coding via front socket |
Directive conformity
| Electromagnetic compatibility: Directive 2014/30/EU | EN 61326-1:2013 |
Conformity
| Electromagnetic compatibility | NE 21 |
| Degree of protection | IEC 60529 |
| Environmental test | EN 60068-2-14 |
| Shock resistance | EN 60068-2-27 |
| Vibration resistance | EN 60068-2-6 |
| Damaging gas | EN 60068-2-42 |
| Relative humidity | EN 60068-2-78 |
Ambient conditions
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) |
| Storage temperature | -40 ... 85 °C (-40 ... 185 °F) |
| Relative humidity | 95 % non-condensing |
| Altitude | max. 2000 m |
| Shock resistance | shock type I, shock duration 11 ms, shock amplitude 15 g, number of shocks 18 |
| Vibration resistance | frequency range 10 ... 150 Hz; transition frequency: 57.56 Hz, amplitude/acceleration ± 0.075 mm/1 g; 10 cycles frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration ± 1 mm/0.7 g; 90 minutes at each resonance |
| Damaging gas | designed for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3 |
Mechanical specifications
| Degree of protection | IP20 when mounted on backplane |
| Connection | removable front connector with screw flange (accessory) wiring connection via spring terminals (0.14 ... 1.5 mm2) or screw terminals (0.08 ... 1.5 mm2) |
| Mass | approx. 90 g |
| Dimensions: Height | 100 mm |
| Dimensions: Width | 16 mm |
| Dimensions: Depth | 102 mm |
Data for application in connection with hazardous areas
| EU-type examination certificate | PTB 03 ATEX 2042 X |
| Marking | II (1)G [Ex ia Ga] IIC [exsign] II (1)D [Ex ia Da] IIIC [exsign] I (M1) [Ex ia Ma] I |
| Input: Voltage | 10.5 V Uo |
| Input: Current | 23.3 mA Io |
| Input: Power | 61.2 mW (linear characteristic) Po |
| Certificate | PF 08 CERT 1234 X |
| Marking | II 3 G Ex nA IIC T4 Gc |
| Galvanic isolation: Input/power supply, internal bus | safe electrical isolation acc. to EN 60079-11, voltage peak value 375 V |
| Directive conformity: Directive 2014/34/EU | EN IEC 60079-0:2018+AC:2020 EN 60079-11:2012 EN 60079-15:2010 |
International approvals
| ATEX approval | PTB 03 ATEX 2042 X |
| UL approval | E106378 |
| IECEx approval: IECEx certificate | IECEx BVS 09.0037X |
| IECEx approval: IECEx marking | Ex nA [ia Ga] IIC T4 Gc [Ex ia Da] IIIC [Ex ia Ma] I |
General information
| System information | The module has to be mounted in appropriate backplanes (LB9***) in Zone 2 or outside hazardous areas. Here, observe the corresponding declaration of conformity. For use in hazardous areas (e. g. Zone 2, Zone 22 or Div. 2) the module must be installed in an appropriate enclosure. |
| Supplementary information | EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com. |
Downloads & documentation
Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.
Data sheets & manuals
CAD & dimension drawings
Certificates (9)
- China SITIIAS CCC Ex Certificate (2021322310003600 (Singapore))
- EU Declaration of Conformity (Pepperl+Fuchs)
- DNV Marine (TAA0000034)
- Brasil TUV Rheinland Brazil (TÜV 13.1128 X)
- South Africa MASC (MASC MS/20-8436X)
- USA UL Certificate of Compliance (UL-US-L106378-47733-21201002-5 RepRef E106378-20010212)
- Europe PTB II (1) D II (1) G (PTB 03 ATEX 2042X)
- United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1) (CML 21UKEX2663X)
- Europe Pepperl+Fuchs ATEX Category 3 G Certificate of Conformity (PF 08 CERT 1234 X)
LB1103A: frequently asked questions
When can LB1103A be shipped?
LB1103A is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up LB1103A in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for LB1103A and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for LB1103A, subject to availability and destination.








