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Kerlink  |  SKU: KLK02900

Kerlink KLK02900 | N-Type RF Lightning & Surge Arrestor for LoRaWAN Gateways

Price excl. VAT
€59,66
Price incl. 19% VAT
€71,00
Shipping calculated at checkout. Shipping policy

The Kerlink KLK02900 is a coaxial RF lightning and surge arrestor for outdoor LoRaWAN gateways.

  • Lightning protection: quarter-wave, up to 50 kA, bi-directional
  • Signal stays clean: 800–2200 MHz, VSWR under 1.2, under 0.2 dB loss
  • Weatherproof: N-male to N-female, IP65, CE/RoHS

VAT & Business Purchases

Prices are shown excluding VAT. For EU deliveries, VAT at the rate of your delivery country is added at checkout. EU businesses with a valid VAT number pay no VAT: enter your company name and VAT number at checkout and the order is invoiced under the intra-community reverse-charge rules. Orders delivered within Cyprus always include Cyprus VAT.

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  • Warranty & Support: Consumer purchases are covered by the 2-year legal guarantee of conformity, and manufacturer warranty terms apply per brand. Our engineering team at shopioT provides technical support.

Delivery and Shipping

Tracked delivery within Cyprus by ACS Courier, and to all EU member states, the United Kingdom and Switzerland by FedEx International Priority. Orders ship from our warehouse in Nicosia, Cyprus, typically within 1–3 business days. Shipping cost is calculated at checkout by destination and parcel weight. See our Shipping Policy for rates and delivery times.

EU business? Enter your company name and a valid EU VAT number at checkout to remove VAT (reverse charge).

Description

The Kerlink KLK02900 (CITEL PRC822S-NMF) is an RF lightning & surge arrestor — a critical infrastructure component for any outdoor LoRaWAN installation. Using "Quarter Wave" technology, this coaxial protector provides a robust path to ground for the high-energy surges caused by lightning strikes, isolating and protecting the sensitive RF circuitry of your gateway.

Optimised for the 800–2200 MHz range, it delivers maximum safety without compromising signal integrity or coverage. With an N-Male to N-Female inline design and an IP65 weatherproof body, it's built to sit on the antenna feed of tower- and rooftop-mounted gateways.

Core Capabilities

High Discharge Capacity Designed to withstand maximum discharge currents (Imax) of up to 50 kA, providing reliable protection for gateways mounted on tall towers or exposed rooftops.
Minimal RF Impact With a Return Loss of >20 dB and VSWR <1.2:1 across 800–2200 MHz, it maintains excellent impedance matching so your LoRaWAN signal stays clear and consistent.
Bi-Directional & Maintenance-Free The "Quarter Wave" short-circuit design protects in both directions with no consumable elements to replace — install it once for reliable, maintenance-free surge suppression.
Weatherproof N-Type Build An IP65-rated body with N-Male to N-Female connectors fits inline on the coaxial antenna feed, ready for permanent outdoor exposure on masts and rooftops.

Typical Applications

Tower-Mount Installations: Essential protection for gateways and antennas deployed on telecommunication towers or high-altitude masts.
Exposed Rooftops: Safeguard commercial-building deployments against direct or indirect lightning strikes in high-exposure urban areas.
Industrial Sites: Protect critical LoRaWAN backhaul at oil & gas, mining, and solar-farm sites where equipment safety is paramount.

Technical Integration

Key points for fitting the KLK02900 into your RF path:

RF path: Fits inline on the coaxial run between the antenna and the gateway, with N-Male to N-Female connectors.
Frequency range: 800–2200 MHz, covering EU868 LoRaWAN as well as common cellular bands.
Surge protection: "Quarter Wave" technology routes high-energy surges to ground, with Imax up to 50 kA.
RF performance: Return Loss >20 dB, VSWR <1.2:1, and insertion loss <0.2 dB for minimal signal impact.
Environment: IP65 weatherproof body for permanent outdoor tower or rooftop mounting.
Setup help: Bond the arrestor to the mast or earth bar for an effective ground — contact the shopioT technical team for guidance.

What's in the Box

1×RF Lightning Arrestor (N-Male to N-Female)
1×Technical Data & Installation Sheet

Frequently Asked Questions

What does the KLK02900 protect against?

High-energy surges from direct or nearby lightning strikes. Using "Quarter Wave" technology, it routes the surge safely to ground and isolates your gateway's sensitive RF circuitry.

Where is it installed?

Inline on the coaxial run between the antenna and the gateway, bonded to the mast or earth bar for an effective ground.

Will it weaken my signal?

Minimally — it offers Return Loss >20 dB, VSWR <1.2:1, and insertion loss <0.2 dB across 800–2200 MHz, preserving signal integrity and coverage.

What connectors does it use?

N-Male to N-Female, so it fits directly into standard N-type coaxial antenna feeds.

Is it suitable for outdoor use?

Yes — it has an IP65-rated weatherproof body built for permanent tower and rooftop installation.

Does it require maintenance?

No. The bi-directional "Quarter Wave" design has no consumable parts to replace — it's a fit-and-forget, maintenance-free protector.

Certifications

IP65

Specifications
  • Activation Method
    Plug & Play
  • Power Source
    Passive / Host-powered
  • Power Consumption
    Passive
  • IP Rating
    IP65
  • Environment Rating
    Outdoor, Industrial
  • Operating Temperature
    -40°C to +85°C
  • Warranty
    2 Years

Document Library

KLK02900 Datasheet

Payment & Security

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