Pepperl Fuchs DP-LBF-I1.36.*

Surge Protector

MPN: DP-LBF-I1.36.*
Category: Surge Protection

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Pepperl Fuchs DP-LBF-I1.36.*?

Modular: protection module easy to replace

Intrinsically safe (Ex ia), FISCO, Entity, DART Fieldbus, or general-purpose

Protection module replaceable, interrupting or non-interrupting

Grounding of shield direct or via gas-discharge tube

For FOUNDATION Fieldbus H1 and PROFIBUS PA

Compact and space-saving design

Installation on DIN rail in cabinet or field junction box

Surge protector, module for control cabinet installation (Ex ia), Modular: protection module easy to replace, Intrinsically safe (Ex ia), FISCO, Entity, DART Fieldbus, or general-purpose, Protection module replaceable, interrupting or non-interrupting, Grounding of shield direct or via gas-discharge tube, For FOUNDATION Fieldbus H1 and PROFIBUS PA, IECEx approval, Europe, USA, Canada

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	T48403
Design / Mounting	Cabinet installation
Installation in hazardous area	Zone 1 / Div. 1
Lifecycle	Active (current Pepperl+Fuchs product)

Electrical specifications

Rated voltage	33 V Ur
Rated current	500 mA Ir
Voltage protection level: Line/Line	max. 58 V category C1/C28/20 µsecmax. 50 V category C3 1 kV/µsecmax. 51 V category B2 10/700 µsecmax. 55 V category D1 10/350 µsec
Voltage protection level: Line/Earth	max. 1400 V category C1/C28/20 µsecmax. 1100 V category C1/C21 kV/µsecmax. 1000 V category B2 10/700 µsecmax. 1300 V category D1 10/350 µsec
Voltage protection level: Screen/Shield directly grounded	max. 25 V category C1/C28/20 µsecmax. 20 V category D1 10/350 µsec
Voltage protection level: Screen/Shield indirectly grounded (via GDT)	max. 700 V category C1/C28/20 µsecmax. 600 V category C3 1 kV/µsecmax. 500 V category B2 10/700 µsecmax. 600 V category D1 10/350 µsec
Reaction time: Line/Line	max. 1 ns
Reaction time: Line/Earth	max. 100 ns
Reaction time: Screen/Shield-Earth	max. 100 ns
Overstressed fault mode	according IEC 61643-21 line inoperable mode 3 lines 1 and 2 at 15,5kA (8/20µsec) lines 3 and 4 at 30kA (8/20µsec)
Series resistance in line	1 Ω +/- 5 %
Impulse durability: Per line	1 kA category D1 10/350 µsec ,5 kA category C1/C28/20 µsec
Impulse durability: Screen/Shield directly grounded	5 kA category D1 10/350 µsec
Impulse durability: Screen/Shield indirectly grounded (via GDT)	4 kA category D1 10/350 µsec ,10 kA category C1/C28/20 µsec
Capacitance: Line/Line	800 pF
Capacitance: Line/Earth	16 pF

Standard conformity

Degree of protection	IEC 60529
Fieldbus standard	IEC 61158-2
Climatic conditions	IEC 60721
Shock resistance	EN 60068-2-27
Vibration resistance	EN 60068-2-6
Surge protection	IEC 61643-21

Ambient conditions

Ambient temperature	-50 ... 80 °C (-58 ... 176 °F)
Storage temperature	-50 ... 85 °C (-58 ... 185 °F)
Relative humidity	≤ 95 % non-condensing
Shock resistance	15 g 11 ms
Vibration resistance	1 g , 10 ... 150 Hz

Mechanical specifications

Connection type	screw terminals
Core cross section	flexible wire 2.5 mm2 solid wire max. 4 mm2
Housing material	Polyamide PA 6.6
Degree of protection	IP20
Mass	Protection Module 20 g , base module 40 g
Mounting	DIN rail mounting

Data for application in connection with hazardous areas

EU-type examination certificate	KEMA 09 ATEX 0191 X
Marking	II 2(1)G Ex ia [ia Ga] IIC T6...T4 Gb
Voltage	30 V Ui
Current	500 mA Ii
Internal capacitance	negligible 0 nF Ci
Internal inductance	negligible 0 µH Li
Certificate	KEMA 09 ATEX 0190 X
Marking	II 3G Ex ic IIC T6...T4 Gc , [exsign] II 3G Ex ec IIC T6...T4 Gc
Voltage	33 V Ui
Current	500 mA Ii
Internal capacitance	negligible 0 nF Ci
Directive conformity: Directive 2014/34/EU	EN IEC 60079-0:2018+A11:2024 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012

International approvals

CSA approval	CSA 2437472
Control drawing	116-0361
Approved for	Class I, Zone 1, AEx/Ex ia IIC T4...T6, Class I, Zone 2, AEx nC IIC T4...T6, Class I, Zone 2, Ex nL IIC T4...T6, Class I, Zone 2, AEx/Ex nA IIC T4...T6 Class I Div. 1, GP A, B, C, D T4...T6, Class I Div. 2, GP A, B, C, D T4...T6, Class I Div. 2, GP A, B, C, D T4...T6
IECEx approval	IECEx KEM 09.0088X
Approved for	Ex ia [ia Ga] IIC T6...T4 Gb ,Ex ic IIC T6...T4 Gc , Ex ec IIC T6...T4 Gc

General information

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

3-D model (STEP) DP-LBF-I1.36.*STP · 991 kB

Certificates (5)

DP-LBF-I1.36.*: frequently asked questions

When can DP-LBF-I1.36.* be shipped?

DP-LBF-I1.36.* 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 DP-LBF-I1.36.* 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 DP-LBF-I1.36.* 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 DP-LBF-I1.36.*, subject to availability and destination.