
Pepperl Fuchs M-LB-Ex-2114
Surge Protection Barrier
- MPN
- M-LB-Ex-2114
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What is the Pepperl Fuchs M-LB-Ex-2114?
Surge protection barrier for 2 signal lines
Nominal voltage 1 V DC
Surge protection barrier for grounded signal lines
Max. surge current (8/20 µs) 20 kA
Connection via screw terminals
DIN rail mountable
Up to SIL 3 acc. to IEC/EN 61508
Surge protection barrier for 2 signal lines, Nominal voltage 1 V DC, Surge protection barrier for grounded signal lines, Max. surge current (8/20 µs) 20 kA, Connection via screw terminals, DIN rail mountable, Up to SIL 3 acc. to IEC/EN 61508, Modularity: one-piece, Number of protected signal lines: 2, Topology: grounded, Safety Integrity Level (SIL): SIL 3, Nominal voltage: 1 V DC, Nominal discharge current (8/20 µs): 5 kA per line (10x)
Specifications
General specifications
| Order code (Pepperl+Fuchs part number) | 313284 |
| Number of protected signal lines | 2 |
| Topology | grounded |
| Lifecycle | Active (current Pepperl+Fuchs product) |
Functional safety related parameters
| Safety Integrity Level (SIL) | SIL 3 |
Electrical specifications
| Connection | protected area: terminals 4, 5 unprotected area: terminals 2, 3 shielding/grounding: terminal 1 (optional) |
| Rated current | 500 mA , restrictions see derating tables UL : 340 mA , restrictions see control drawing Ir |
| Leakage current | < 10 µA at 1 V and 25 °C (77 °F) , line-line |
| Nominal voltage | 1 V DC UN |
| Maximum continuous operating voltage | 6 V DC Uc |
| Series resistance | ≤ 3 Ω per line |
| Impulse rating | 1 kV/0.5 kA (category C1) 10 kV/5 kA (category C2) 1 kA (category D1) |
| Impulse discharge current (10/350 µs) | 1 kA per line (2x) Iimp |
| Nominal discharge current (8/20 µs) | 5 kA per line (10x) In |
| Total discharge current (8/20 µs) | 20 kA (1x) , overstressed fault mode 3 acc. to IEC 61643-21 Itotal |
| Voltage protection level | max. 12 V line-line for nominal discharge current In max. 31 V line-earth for nominal discharge current In Up |
| Impulse reset time | < 500 ms |
| Insertion loss | ≤ 3 dB at 0 ... 250 kHz in 100 Ω system |
Conformity
| Electromagnetic compatibility | EN 61326-3-1:2017 |
| Degree of protection | IEC 60529:2013 |
| Functional safety | IEC/EN 61508:2010 |
| Surge protective devices for low voltage | IEC 61643-21:2000+A1:2008+A2:2012 |
Ambient conditions
| Ambient temperature | -40 ... 80 °C (-40 ... 176 °F) Observe the temperature range limited by derating, see section derating. |
| Storage temperature | -40 ... 85 °C (-40 ... 185 °F) |
| Relative humidity | max. 95 % , without condensation |
| Corrosion resistance | acc. to ISA-71.04, severity level G3 |
Mechanical specifications
| Degree of protection | IP20 , after mounting of the insulation spacer |
| Connection | screw terminals , max. core cross section 1 x 2.5 mm2 |
| Material | Polyamide (PA) |
| Mass | approx. 32 g |
| Dimensions | 6.2 x 93 x 72.4 mm (0.24 x 3.7 x 2.8 inch) (W x H x D) |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
Data for application in connection with hazardous areas
| EU-type examination certificate | KIWA 19 ATEX 0003 X |
| Marking | II 2(1)G Ex ia [ia Ga] IIC T6...T4 Gb [exsign] II (1)D [Ex ia Da] IIIC [exsign] I (M1) [Ex ia Ma] I |
| Temperature class | T6, T5 or T4 , restrictions see derating tables |
| Voltage | 30 V Ui |
| Current | 500 mA , restrictions see derating tables Ii |
| Power | 1.4 W , restrictions see derating tables Pi |
| Internal capacitance | negligible Ci |
| Internal inductance | 20 µH Li |
| Directive conformity: Directive 2014/34/EU | EN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , IEC 60079-11:2023 |
International approvals
| UL approval | E501704 E501881 |
| Control drawing | 116-0479 |
| Voltage | 30 V Ui |
| Current | 340 mA , restrictions see control drawing Ii |
| Power | 1.4 W , restrictions see control drawing Pi |
| Breakdown voltage | 6 ... 12 V line-line at 100 V/s acc. to UL 497B 6 ... 12 V line-earth at 100 V/s acc. to UL 497B < 1000 V at 100 V/µs acc. to UL 497B UBR |
| IECEx approval: IECEx certificate | IECEx KIWA 19.0003X |
| IECEx approval: IECEx marking | Ex ia [ia Ga] IIC T6...T4 Gb [Ex ia Da] IIIC [Ex ia Ma] I |
General information
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals 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 (7)
- USA UL Hazardous Location (UL-US-2401419-1)
- Canada UL Hazardous Location (UL-CA-2401113-1)
- Korea KOSHA (24-AV4BO-0167X)
- China SITIIAS CCC Ex Certificate (2020322304002752 (Singapore))
- EU Declaration of Conformity (Pepperl+Fuchs)
- Europe KIWA ATEX I (M1) II (1) D II 2(1)G (KIWA 19 ATEX 0003 X)
- USA UL UL (UL-US-2006718-2)
M-LB-Ex-2114: frequently asked questions
When can M-LB-Ex-2114 be shipped?
M-LB-Ex-2114 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 M-LB-Ex-2114 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 M-LB-Ex-2114 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 M-LB-Ex-2114, subject to availability and destination.
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