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Pepperl+Fuchs M-LB-2.30.T3.D Surge Protection Barrier
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Product Name:
Pepperl+Fuchs M-LB-2.30.T3.D Surge Protection Barrier
Product Model:
M-LB-2.30.T3.D
Manufacturer:
Pepperl Fuchs
file:
No Related Documents
Product Description
Type 3 acc. to EN 61643-11
SEO-Optimized Keywords
Primary: Pepperl+Fuchs surge protection, M-LB-2.30.T3.D, surge barrier, DIN rail surge protector
Technical: 2-channel surge protector, 30V surge barrier, signal loop protection, transient voltage suppressor
Application: PLC surge protection, DCS input protection, 4-20mA surge protection, industrial automation safety
Features: Dual-channe
Pepperl+Fuchs M-LB-2.30.T3.D Surge Protection Barrier
Pepperl+Fuchs M-LB-2.30.T3.D Surge Protection Barrier
Pepperl+Fuchs M-LB-2.30.T3.D | Surge Protection Barrier | 2-Channel | 30V | DIN Rail

The Pepperl+Fuchs M-LB-2.30.T3.D is a dual-channel surge protection barrier engineered to protect sensitive electronic equipment and signal loops from voltage surges and transients in industrial environments. Designed with a focus on reliability and safety, it is particularly suited for applications in process automation where signal integrity is critical.
Key Features and Product Highlights
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Dual-Channel Protection: Provides independent surge protection for two separate signal loops (e.g., 4-20 mA), optimizing space and cost-efficiency in control panels.
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Rated Voltage: Designed for circuits with a maximum operating voltage of 30V, making it suitable for standard industrial control and instrumentation signals.
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Robust Surge Immunity: Protects against transient overvoltages, such as those induced by lightning or switching events, safeguarding PLCs, DCS modules, and other control system assets.
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DIN Rail Mounting: Compact form factor for easy installation on standard 35mm DIN rails, facilitating simple integration into marshalling cabinets and control panels.
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Maintenance-Free Operation: The passive design ensures long-term reliability without the need for routine maintenance or batteries.
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Visual Status Indication: Typically features a visual indicator (often a green LED or mechanical flag) to show the operational status and confirm the protective element is functional.
Technical Specifications
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Parameter
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Specification
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Manufacturer
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Pepperl+Fuchs
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Model Number
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M-LB-2.30.T3.D
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Product Type
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Surge Protection Barrier
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Number of Channels
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2
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Rated Voltage
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30 V
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Nominal Current
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Refer to official datasheet
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Protection Level (Up)
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Based on relevant standards (e.g., IEC 61643-21)
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Mounting
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DIN Rail 35mm
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Connection
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Screw terminals
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Operating Temperature
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-20°C to +60°C (typical range)
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Housing Material
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Plastic (UL 94 V-0 rated)
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Protection Rating
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IP20 (when installed in an enclosure)
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Applications
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Process Automation: Protecting analog/digital I/O modules of PLCs and DCSs from surge damage.
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Signal Loops: Safeguarding 4-20 mA, 0-10 V, and discrete signal lines in field instrumentation circuits.
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Hazardous Areas: Often used as part of an intrinsic safety (IS) interface to protect the safe area equipment.
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Industrial Control Panels: Installation in motor control centers (MCCs), marshalling cabinets, and junction boxes.
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Manufacturing & Machinery: Providing surge immunity for control signals in automated production equipment.

Why Choose Pepperl+Fuchs M-LB-2.30.T3.D?
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Proven Quality: Leverages Pepperl+Fuchs' long-standing expertise in industrial protection and interface technology.
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Space Saving: The 2-channel design reduces the footprint in control cabinets compared to single-channel devices.
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Enhanced System Uptime: Prevents costly downtime and equipment damage caused by electrical transients.
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Easy Installation: Clear terminal labeling and DIN rail mounting enable quick and error-free setup.
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Global Compliance: Manufactured to meet international standards for safety and performance.
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Surge protection for 2 supply lines
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Type 3 acc. to EN 61643-11
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Nominal voltage 24 V AC
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Pre-wired unit
Pepperl+Fuchs M-LB-2.30.T3.D 2-channel surge protection barrier. 30V rating, DIN rail mount, for signal loops in hazardous areas and industrial automation.
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