Pepperl+Fuchs | K-LB-1.6G Surge Protection Barrier

Surge Protection Barrier: Precision Defense for 6V Instrumentation

Protect sensitive low-voltage devices with the Pepperl+Fuchs K-LB-1.6G. Engineered for 6V circuits, this single-channel barrier delivers 20kA surge suppression, 1ns ultra-fast response, and ATEX/IECEx certification. Ideal for protecting PLC inputs, sensors, and transmitters in hazardous locations.

🔧 Key Features

• Nanosecond defense: 1ns symmetrical response time
• Zero signal degradation: ≤0.3Ω resistance & ≥40kHz bandwidth
• Auto-reset after surge events (<30ms recovery)
• IP20 rated for control panels
• Compact 12.5mm DIN-rail design

⚙️ Technical Specifications

• Brand: Pepperl+Fuchs
• Model: K-LB-1.6G (Full suffix: K-LB-1.6G-EX)
• Voltage Rating: ≤6V DC (≤12V on-state)
• Surge Current: 20kA/line (8/20µs)
• Leakage Current: ≤5µA
• Response Time: 1ns (sym) / 100ns (asym)
• Temp Range: -30°C to 80°C (T6 rated ≤50°C)

📦 Packaging List

• 1x Barrier Unit
• Installation guide
• 12-month warranty

🚚 Shipping

Global delivery via FedEx, UPS, or DHL. Most orders ship same-day.

❓ FAQ

Q: Can this protect 3-wire RTD sensors?
A: Yes – use with 6V-powered RTD transmitters requiring surge protection on signal lines.

Q: Minimum grounding requirements?
A: Requires 10AWG copper ground wire with impedance <1Ω per EN 62305.

Q: Compatible with SIL systems?
A: While not SIL-rated, it meets IEC 61643-21 for surge protection devices.

🔍 Model Comparison