Pepperl+Fuchs M-LB-Ex-2144
Surge Protection Barrier
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- Surge protection barrier for 2 signal lines
- Nominal voltage 24 V DC
- Surge protection barrier for grounded signal lines
- Max. surge current (8/20 µ-s) 20 kA
- Connection via screw terminals
- DIN rail mountable
- Up to SIL 3 acc. to IEC 61508
Item Number:
M-LB-Ex-2144
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- Overview
- Comments
| Relative humidity | max. 95 % , without condensation |
| Impulse reset time | < 500 ms |
| Insertion loss | ≤ 3 dB at 0 ... 700 kHz in 100 Ω system |
| Impulse rating | 1 kV/0.5 kA (category C1) 10 kV/5 kA (category C2) 1 kA (category D1) |
| Maximum continuous operating voltage | 30 V DC |
| Mass | approx. 32 g |
| Voltage protection level | max. 45 V line-line for nominal discharge current In max. 60 V line-earth for nominal discharge current In |
| Supplementary information | Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com. |
| Surge protective devices for low voltage | IEC 61643-21:2000+A1:2008+A2:2012 |
| EU-type examination certificate | KIWA 19 ATEX 0003 X |
| Degree of protection | IP20 , after mounting of the insulation spacer |
| Rated current | 500 mA , restrictions see derating characteristics |
| Impulse discharge current (10/350 µs) | 1 kA per line (2x) |
| Safety Integrity Level (SIL) | SIL 3 |
| Material | Polyamide (PA) |
| Total discharge current (8/20 µs) | 20 kA (1x) , overstressed fault mode 3 acc. to IEC 61643-21 |
| Nominal voltage | 24 V DC |
| Leakage current | < 6 µA at 24 V and 25 В°C (77 В°F) , line-line |
| Functional safety | IEC/EN 61508:2010 |
| Designation | - insulation spacer M-LB-2800 - terminal block USLKG5 |
| Nominal discharge current (8/20 µs) | 5 kA per line (10x) |
| Connection | screw terminals , max. core cross section 1 x 2.5 mm2 |
| Ambient temperature | -40 ... 80 В°C (-40 ... 176 В°F) Observe the temperature range limited by derating, see section derating. |
| Storage temperature | -40 ... 85 В°C (-40 ... 185 В°F) |
| Topology | grounded |
| Number of protected signal lines | 2 |
| Connection | protected area: terminals 4, 5 unprotected area: terminals 2, 3 shielding/grounding: terminal 1 (optional) |
| Dimensions | 6.2 x 72.4 x 93 mm |
| Electromagnetic compatibility | EN 61326-3-1:2017 |
| Series resistance | ≤ 3 Ω per line |
| Mounting | on 35 mm DIN mounting rail acc. to EN 60715:2001 |
| Degree of protection | IEC 60529:2013 |
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