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  4. Surge Protection
  5. Devices for Supply Line Protection
  6. M-LB-2.255.T3.D

M-LB-2.255.T3.D Surge Protection Barrier

Key Benefits at a Glance

  • Surge protection for 2 supply lines
  • Type 3 acc. to EN 61643-11
  • Nominal voltage 230 V AC
  • Pre-wired unit
  • Operating state and fault indication of every protected line
  • Fault indication output
  • DIN rail mountable

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Product photo: Surge Protection Barrier M-LB-2.255.T3.D
Product photo: Surge Protection Barrier M-LB-2.255.T3.D
Product Compliance: Europe – CE
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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DatasheetFunctionClassificationProduct DocumentationApprovals

Technical data of M-LB-2.255.T3.D

Device typetype 3 acc. to EN 61643-11:2013
class III acc. to IEC 61643-1:2011
Number of protected supply lines2
Suitable componentsprotection module M-LB-2.255.T3.M
Nominal voltage230 V AC, 50 ... 60 Hz
Maximum continuous operating voltageUc255 V AC, 50 ... 60 Hz
255 V DC
Temporary over-voltageUt335 V/5 s (TOV withstand) (L-N)
400 V/5 s (TOV withstand) (L/N-PE)
1200 V+Ucs/200 ms (TOV safe failure) (L+N-PE) 5 s (TOV withstand)
Nominal load currentIL25 A
Nominal discharge current (8/20 µs)In3 kA
Max. surge current (8/20 µs)Imax5 kA
Voltage protection levelUpmax. 1.25 kV (L-N)
max. 1.5 kV (L/N-PE)
Reaction timetAmax. 25 ns (L-N)
max. 100 ns (L/N-PE)
Short-circuit-proof6 kA eff at max. mains-side overcurrent protection
Overcurrent protectionmax. 25 A gL/gG (B 25 A) , mains-side
Connectionterminals 11, 12, 14
Outputvolt-free change-over contact
Switch powerAC: 250 V / 0.5 A
DC: 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A; 24 V/0.5 A
Display elementsstatus display
operating state (green)
fault indication (red)
Low voltage
Directive 2014/35/EUEN 61643-11:2012
Degree of protectionIEC 60529:2013
Shock resistanceEN 60068-2:2010
Vibration resistanceEN 60068-2:2010
Installation conditions
Mounting locationindoor
Ambient temperature-40 ... 80 °C (-40 ... 176 °F)
Relative humidity5 ... 95 %
Degree of protectionIP20
Core cross section- min. 0.5 mm2 solid/flexible
- max. 4 mm2 stranded/2.5 mm2 flexible
Material
Housingthermoplastic, color grey , UL 94 V-0
Massapprox. 120 g
Dimensions18 x 90 x 72 mm (0.7 x 3.6 x 2.8 inch) (W x H x D) , 1 TE acc. to DIN 43880
Height90 mm
Width18 mm
Depth72 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
General Notes
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