Home / Pepperl Fuchs / LB (Zone 2, Class I/Div. 2) / Pepperl Fuchs LB3105A2

Pepperl Fuchs LB3105A2

Q: When can LB3105A2 be shipped?

LB3105A2 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Q: Can I pick up LB3105A2 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Q: Is express delivery available?

Yes — mention it when you request a quote for LB3105A2 and we'll include express shipping options in our reply.

Q: 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 LB3105A2, subject to availability and destination.

HART Transmitter Power Supply, Input Isolator

MPN: LB3105A2
Category: LB (Zone 2, Class I/Div. 2)

Price and lead time confirmed within 1 business day

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What is the Pepperl Fuchs LB3105A2?

4-channel

Inputs Ex ia

Mounting in Zone 2, Class I/Div.2 or in the safe area

Power supply for 2-wire transmitters with 4 mA ... 20 mA

Supply circuit 15 V (20 mA)

Input from active signals of 4-wire transmitters

HART communication via field bus or service bus

Simulation mode for service operations (forcing)

Line fault detection (LFD): one LED per channel

Permanently self-monitoring

4-channel, Inputs Ex ia, Mounting in Zone 2, Class I/Div.2 or in the safe area, Power supply for 2-wire transmitters with 4 mA ... 20 mA, Explosion protection: Ex ia, Field device: pressure converter, Field device [2]: flow converter, Field device [3]: level converter, Field device [4]: Temperature Converter, Connection: 2-wire transmitter, Connection [2]: 3-wire transmitter, Connection [3]: 4-wire transmitter, HART communication

Specifications

Slots

Order code (Pepperl+Fuchs part number)	254710
Occupied slots	2
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	1.5 W
Power consumption	2.7 W

Internal bus

Connection	backplane bus
Interface	manufacturer-specific bus to standard com unit

Analog input

Number of channels	4
Suitable field devices: Field device	pressure converter
Suitable field devices: Field device [2]	flow converter
Suitable field devices: Field device [3]	level converter
Suitable field devices: Field device [4]	Temperature Converter
Field device interface: Connection	2-wire transmitter
Field device interface: Connection [2]	3-wire transmitter
Field device interface: Connection [3]	4-wire transmitter
Connection	2-wire transmitter (HART):Supply circuit: channel I 1+, 2-, channel II 5+, 6-, channel III 9+, 10-, channel IV 13+, 14-3-wire transmitter:Supply circuit: channel I 1+, 4-, channel II 5+, 8-, channel III 9+, 12-, channel IV 13+, 16-Measurement loop: channel I 3+, 4-, channel II 7+, 8-, channel III 11+, 12-, channel IV 15+, 16-4-wire transmitter (powered externally):Measurement loop: channel I 3+, 4-, channel II 7+, 8-, channel III 11+, 12-, channel IV 15+, 16-
Transmitter supply voltage	min. 15 V at 20 mA ; 21.5 V at 4 mA
Input resistance	15 Ω
Conversion time	max. 100 ms
Line fault detection	can be switched on/off for each channel via configuration tool , configurable via configuration tool
Short-circuit	factory setting: > 22 mA configurable between 0 ... 26 mA
Open-circuit	factory setting: < 1 mA configurable between 0 ... 26 mA
HART communication	yes
HART secondary variable	no

Transfer characteristics

Deviation: After calibration	0.1 % of the signal range at 20 °C (68 °F)
Deviation: Influence of ambient temperature	0.1 %/10 K of the signal range
Resolution	12 Bit (0 ... 26 mA)
Refresh time	100 ms

Indicators/settings

LED indication	Power LED (P) green: supply Diagnostic LED (I) red: module fault , red flashing: communication error , white: fixed parameter set (parameters from com unit are ignored) , white flashing: requests parameters from com unit Status LED (1-4) red: line fault (lead breakage or short circuit)
Coding	optional mechanical coding via front socket

Directive conformity

Electromagnetic compatibility: Directive 2014/30/EU

EN 61326-1:2013

Conformity

Electromagnetic compatibility	NE 21:2007
Degree of protection	IEC 60529:2000
Environmental test	EN 60068-2-14:2009
Shock resistance	EN 60068-2-27:2009
Vibration resistance	EN 60068-2-6:2008
Damaging gas	EN 60068-2-42:2003
Relative humidity	EN 60068-2-78:2001

Ambient conditions

Ambient temperature	-40 ... 60 °C (-40 ... 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. 150 g
Dimensions: Height	100 mm
Dimensions: Width	32.5 mm
Dimensions: Depth	102 mm

Data for application in connection with hazardous areas

EU-type examination certificate	BVS 12 ATEX E 024 X
Marking	II 3(1) G Ex nA [ia Ga] IIC T4 Gc[exsign] I (M1) [Ex ia Ma] I[exsign] II (1) D [Ex ia Da] IIIC
Supply: Voltage	27 V Uo
Supply: Current	90 mA Io
Supply: Power	588 mW (linear characteristic) Po
Input: Voltage	0.7 V Uo
Input: Current	2.78 mA Io
Input: Power	2 mW (trapezoid characteristic curve) Po
Input: Voltage	30 V DC Ui
Input: Current	100 mA Ii
Input: Power	100 mW Pi < 100 mW is fulfilled by Ii < 100 mA, so a comparison of Po < Pi is not necessary. Pi
Input: Internal capacitance	242 nF Ci
Input: Internal inductance	0 mH Li
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	BVS 12 ATEX E 024 X
UL approval	E106378
IECEx approval: IECEx certificate	IECEx BVS 12.0055X
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)

LB3105A2: frequently asked questions

When can LB3105A2 be shipped?

LB3105A2 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 LB3105A2 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 LB3105A2 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 LB3105A2, subject to availability and destination.