What HAKEL does

HAKEL s.r.o. is a privately held Czech manufacturer founded in 1994 and headquartered in Hradec Kralove, specializing in surge protection devices (SPDs) and insulation monitoring equipment for isolated (IT) electrical networks. The company's portfolio covers seven core categories: AC and DC surge protectors, insulation state monitors for medical and industrial IT systems, data line protection (including high-speed Ethernet/PoE), low-voltage limiters (VLD), potential equalization components, and measuring instruments. Its proprietary technology centers on high-discharge-capacity varistor-based arresters, including combined T1+T2+T3 lightning and surge protection devices, and the HIG-series insulation monitors used in medical IT networks (ZIS) to track insulation resistance, current load, and thermal load of isolation transformers.

HAKEL serves a diversified set of verticals through both direct and channel-led sales: healthcare and medical facilities (operating rooms, hospital construction), photovoltaic systems (residential, commercial, outdoor), industrial production facilities, residential buildings, railway infrastructure, IT/data networks, and oil & gas pipeline systems. The company generates revenue almost entirely through hardware sales, distributed via anchor electrical wholesalers such as ARGOS ELEKTRO (exclusive photovoltaic supplier across 22 branches), regional electrical contractors, an in-house e-commerce storefront, and a direct business-technical field salesforce. Pricing is quote-based and not publicly disclosed.

With over six million products manufactured, an installed base across more than 69 countries, and a stated 99.8% complaint-free installation rate, HAKEL operates as a small (11-50 employees), founder-owned niche specialist that has compounded organically for three decades without external investment. Recent strategic activity has focused on portfolio refresh (EVOLUTION-series SPDs, HIG95-DELTA/G2 medical IT monitor, HT-NET PoE 7cat high-speed data protection), vertical expansion into photovoltaic and medical IT, and multilingual web presence in Czech, English, Spanish, and Polish to support export-led growth.

Name

HAKEL

Legal name

HAKEL s.r.o.

Website

https://hakel.cz

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

HAKEL is a Czech-founded (1994) manufacturer of surge protection devices and insulation monitoring equipment for isolated IT networks, serving healthcare, photovoltaic, industrial, railway, and IT infrastructure customers across 69+ countries via distributors, contractors, and direct sales.

Ownership category

akta.pro rank

Product category

Surge Protection Devices and Insulation Monitoring Equipment

NAICS

Electrical Equipment Manufacturing (33531), Current-Carrying Wiring Device Manufacturing (335931), Switchgear and Switchboard Apparatus Manufacturing (335313), Electromedical and Electrotherapeutic Apparatus Manufacturing (334510), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Electrical Industrial Apparatus (3620), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Electromedical & Electrotherapeutic Apparatus (3845)

akta.pro primary industry

Surge Protectors & Power Strips (SPD) (HDACAJAB)

akta.pro secondary industries

Varistors & Surge Protection (MOV/TVS-like passive protectors/GDT) (HDAHANAI), TVS/ESD & Surge Protection Devices (HDAHAHAE), Circuit Protection Devices (MCBs, MCCBs, ACBs, fuses, RCD/GFCI, surge protection) (IMAGAEAB), Personal Medical Devices & Home Diagnostics (Thermometers, Blood Pressure Monitors, Glucose Meters, Rapid Tests) (CRADAMAK)

Keywords

• Surge protection devices
• Insulation monitoring equipment
• Lightning current arresters
• Medical IT networks
• Photovoltaic surge protection

Headquarters

HQ city

Hradec Kralove

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Surge Protection Device Sales: Manufacture and sale of overvoltage/surge protection devices for AC, DC, and data applications. Products include lightning current arresters, surge voltage limiters, and combined protection units. Revenue is generated through one-time product sales to distributors, electrical contractors, and end customers.
2. Insulation Monitoring Equipment: Sale of insulation monitoring devices for IT networks used in healthcare (medical IT networks), industrial applications, railway vehicles, and systems with rectifiers, inverters, and frequency converters.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

HAKEL manufactures and sells surge protection devices (SPDs) for AC and DC systems, insulation state monitors for isolated IT networks (including medical IT networks / ZIS), and data line protection products for Ethernet and telecommunication infrastructure. The portfolio also includes low-voltage limiters, potential equalization components, and measuring instruments. Products are sold to electrical distributors, contractors, and end customers via wholesale and direct technical sales channels.

Product overview

HAKEL is a Czech manufacturer specializing in comprehensive electrical protection solutions. The product portfolio centers on seven core product categories: AC Surge Protection (Přepěťová ochrana AC) and DC Surge Protection (Přepěťová ochrana DC) for protecting electrical installations from voltage surges; Insulation State Monitors (Hlídače izolačního stavu) for medical and industrial IT systems; Data Protection (Datová ochrana) for Ethernet and communication lines including the HT-NET PoE 7cat; VLD Low Voltage Limiters; Potential Equalization components; and Measuring Instruments for testing protection equipment. The company serves diverse sectors including administrative buildings, industry, residential homes, photovoltaic systems, railway infrastructure, IT network protection, and oil/gas pipeline systems. With over 30 years of experience, HAKEL manufactures over 6 million products distributed across more than 69 countries.

Differentiator

Problem solved

Functional benefit

Products and services

• AC Surge Protection (Přepěťová ochrana AC) AC surge protection devices (SPDs) designed to protect electrical installations and equipment from voltage surges in alternating current systems, including combined lightning current and surge voltage arresters for installation in main distribution boards near cable entry points.
• DC Surge Protection (Přepěťová ochrana DC) DC surge protection devices for direct current systems, including photovoltaic installations, designed to protect solar panels, inverters, and DC circuits from voltage surges.
• Insulation State Monitors (Hlídače izolačního stavu) Insulation state monitors for tracking and evaluating the insulation resistance of IT (isolated) power systems in medical and industrial applications, including monitoring of medical isolating transformers per healthcare IT network standards.
• Data Protection (Datová ochrana) Data line protection devices for safeguarding Ethernet and other data communication lines against surge damage, designed for ICT, CCTV, and other networked infrastructure.
• VLD Low Voltage Limiters (Omezovače nízkého napětí VLD) VLD low voltage limiters for protection against undervoltage in electrical systems.
• Potential Equalization (Vyrovnání potenciálu) Potential equalization components for ensuring proper grounding and equipotential bonding in electrical installations.
• Measuring Instruments (Měřící přístroje) Measuring instruments for testing and verifying the performance of surge protection and insulation monitoring equipment.
• HT-NET PoE 7cat Surge protection device for metal Ethernet lines supporting data rates up to 10 Gb/s with bandwidth over 1000 MHz. Protects 4 isolated differential pairs with 100Ω characteristic impedance and supports all PoE standards for ICT and CCTV applications. Installed at the interface of LPZ 0B and higher zones.
• HIG95-DELTA/G2 Next-generation insulation state monitor for AC systems designed for medical IT networks (ZIS). Monitors insulation resistance, current, and thermal load of medical isolating transformers with a display for real-time values and device configuration.
• HLSA12,5-275/4+0 M S EVOLUTION Lightning current and surge voltage arresters type T1+T2+T3 from the EVOLUTION series. Designed for protection objects with LPL III and LPL IV protection levels, featuring robust construction and prominent optical status indication. Made with high energy-absorbing varistors using eco-friendly production.
• HIG99 Insulation state monitor for AC/DC systems capable of monitoring single-phase, multi-phase, and DC IT systems, including combined AC/DC networks. Designed primarily for rail vehicles and industrial systems containing rectifiers, inverters, and frequency converters.

Quantifiable outcome

• 99.8% of installed products operate without any complaints
• +2 more outcomes

Named customers12 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• PMR elektro s.r.o.coreImplementation/ SI/ Consulting PartnerProject design company that provides comprehensive project documentation processing for private investors. Long-term collaboration with HAKEL in hospital projects throughout Czech Republic, utilizing HAKEL's technical support, training, and expert consultations.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• CITEL: French surge protection manufacturer specializing in SPDs for AC, DC, data, and RF lines, with strong presence in photovoltaic and telecom — a direct mid-sized specialty competitor.
• OBO Bettermann: German specialist in cable management, lightning/surge protection, and fire protection systems — directly overlapping with HAKEL's AC/DC surge protection offering for building and industrial installations.
• Weidmüller: German electrical connectivity and surge protection supplier serving industrial automation, photovoltaic, and process industries — overlaps in DC SPDs, data line protection, and industrial building applications.
• DEHN SE: German family-owned specialist in lightning and surge protection, offering AC/DC SPDs and insulation monitoring products with a comparable technical depth and a similar mid-sized specialist positioning.
• Phoenix Contact: German manufacturer with a broad surge protection and device termination portfolio serving industrial, photovoltaic, and process applications — closely comparable in product categories including data line and DC SPDs.

Broad incumbents

• Siemens: German industrial conglomerate with surge protection offerings within its broader low-voltage products and smart infrastructure portfolio — relevant incumbent competitor in large infrastructure tenders.
• Schneider Electric: Global energy management and automation major with surge protection products integrated into its broader low-voltage and solar offerings — competes on large multi-product project specifications.
• ABB: Swiss-Swedish global major offering surge protection as part of its broad electrical products portfolio across utility, industrial, and building markets — competes in the same specification-driven projects at larger scale.
• Eaton: US-based power management major offering SPDs as part of its electrical components portfolio — competes in industrial, data center, and commercial building protection projects.

Regional players

• Salicru: Spanish power electronics and protection specialist with a complementary product line in UPS, voltage stabilizers, and surge protection — comparable mid-sized regional peer with overlapping AC/DC protection applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/HAKELltd
• Facebookfacebook.com/hakelcz
• LinkedInlinkedin.com/company/hakel-ltd-
• Instagraminstagram.com/hakel_hradeckraloveelektro

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HAKEL