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Pepperl Fuchs

Pepperl Fuchs M-LB-2.255.T3.D

Surge Protection Barrier

MPN: M-LB-2.255.T3.D
Category: Devices for Supply Line Protection

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What is the Pepperl Fuchs M-LB-2.255.T3.D?

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

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, Device type: Type 3 acc. to EN 61643-11 , Class III acc. to IEC 61643-11, Number of protected supply lines: 2

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	70174647
Device type	Type 3 acc. to EN 61643-11 Class III acc. to IEC 61643-11
Number of protected supply lines	2
Suitable components	protection module M-LB-2.255.T3.M
Lifecycle	Active (current Pepperl+Fuchs product)

Electrical specifications

Nominal voltage	230 V AC, 50 ... 60 Hz UN
Maximum continuous operating voltage	255 V AC, 50 ... 60 Hz 255 V DC Uc
Temporary over-voltage	335 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) Ut
Nominal load current	25 A IL
Nominal discharge current (8/20 µs)	3 kA In
Max. surge current (8/20 µs)	5 kA Imax
Voltage protection level	max. 1.25 kV (L-N) max. 1.5 kV (L/N-PE) Up
Reaction time	max. 25 ns (L-N) max. 100 ns (L/N-PE) tA
Short-circuit-proof	6 kA eff at max. mains-side overcurrent protection
Overcurrent protection	max. 25 A gL/gG (B 25 A) , mains-side

Fault indication output

Connection	terminals 11, 12, 14
Output	volt-free change-over contact
Switch power	AC: 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

Indicators/settings

Display elements

status display operating state (green) fault indication (red)

Directive conformity

Low voltage: Directive 2014/35/EU

EN 61643-11:2012

Conformity

Degree of protection	IEC 60529:2013
Shock resistance	EN 60068-2:2010
Vibration resistance	EN 60068-2:2010

Operating conditions

Installation conditions: Mounting location

indoor

Ambient conditions

Ambient temperature	-40 ... 80 °C (-40 ... 176 °F)
Relative humidity	5 ... 95 %

Mechanical specifications

Degree of protection	IP20
Core cross section	- min. 0.5 mm2 solid/flexible - max. 4 mm2 stranded/2.5 mm2 flexible
Material: Housing	thermoplastic, color grey , UL 94 V-0
Mass	approx. 120 g
Dimensions	18 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
Mounting	on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with hazardous areas

Certificate	TÜV 22 ATEX 8932 X
Marking	II 3G Ex ec IIC T4 Gc
Directive conformity: Directive 2014/34/EU	EN IEC 60079-0:2018 , EN IEC 60079-7:2015+A1:2018

International approvals

UL approval	E346845
IECEx approval: IECEx certificate	IECEx TUR 22.0082X
IECEx approval: IECEx marking	Ex ec IIC T4 Gc

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

3-D model (STEP) M-LB-2.150.T3.DSTP · 1.3 MB

Certificates (5)

M-LB-2.255.T3.D: frequently asked questions

When can M-LB-2.255.T3.D be shipped?

M-LB-2.255.T3.D 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-2.255.T3.D 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-2.255.T3.D 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-2.255.T3.D, subject to availability and destination.