Santon Circuit Breaker Services

What Santon Circuit Breaker Services does

Santon Circuit Breaker Services B.V. is a Netherlands-based specialist in the maintenance, retrofit and replacement of industrial low-voltage power circuit breakers, operating as a stand-alone subsidiary of UK-listed discoverIE since March 2018. The company is headquartered in Oud-Beijerland with a sales office in the Rotterdam IJsselmonde area and field coverage across the Netherlands, the UK and the DACH region; service engineers deploy globally for on-site installation, commissioning and emergency response. Named customers include Daimler, Total, GDF Suez, Nouryon and Ottermill, with maritime and offshore work disclosed at approximately 25% of group turnover.

The core technical asset is the proprietary Sidunn retrofit brand: a library of more than 1,300 custom-designed conversion sets that enable obsolete or defective circuit breakers to be replaced within 2-4 hours and that are tested against the IEC 61439 standard. Santon complements this with forward engineering that uses 3D printing and CAD software to fabricate parts that original equipment manufacturers no longer produce, effectively extending the life of installed switchgear. The company also sells new circuit breakers from 6 to 6300 Ampere sourced from Schneider Electric, Siemens, ABB and Mitsubishi, and provides installation, certification and commissioning as turn-key projects.

Revenue is generated through four streams: hardware sales of new breakers and spare parts; professional services for installation, retrofitting and project management; recurring revenue from annual Service Level Agreements with 24/7 call-out, periodic auditing and preventive maintenance; and bespoke engineering including Metroform low-voltage switchgear support. Pricing is quote-based on multi-year contracts; the firm markets primarily through direct field sales, industry trade shows (including HortiContact 2025) and an annual knowledge-day conference. With approximately 90 employees across the Santon group, the company positions itself as a technical specialist for critical-power environments ranging from offshore platforms and hospitals to data centers, manufacturing plants and maritime vessels.

Name

Santon Circuit Breaker Services

Legal name

Santon Circuit Breaker Services B.V.

Website

https://santoncbs.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Santon Circuit Breaker Services is a Netherlands-based specialist that maintains, retrofits and replaces industrial low-voltage circuit breakers, using its proprietary Sidunn conversion-set library and 3D-printed forward engineering to extend the life of obsolete switchgear for maritime, offshore, industrial and renewable-energy customers across Europe.

Ownership category

akta.pro rank

Product category

Industrial Circuit Breaker Maintenance & Retrofit Services

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Power, Distribution, and Specialty Transformer Manufacturing (335311), Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (81131), Electronic and Precision Equipment Repair and Maintenance (8112), Wiring Device Manufacturing (33593)

SIC

Switchgear & Switchboard Apparatus (3613), Power, Distribution & Specialty Transformers (3612), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH)

akta.pro secondary industries

Switchgear, Breaker & Buswork Retrofit Services (AIS/GIS) (EUAEALAF), Transformer & Reactor Refurbishment / Replacement Programs (EUAEALAE), Protection, Relaying & Substation Automation Upgrades (IEC 61850) (EUAEALAC), Medium-Voltage Distribution Components (MV breakers, disconnects, reclosers, MV terminations & joints) (IMAGAEAL)

Keywords

• Circuit breaker maintenance
• Circuit breaker retrofit
• Switchgear upgrades
• Electrical service solutions
• Power distribution services

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Circuit Breaker Sales: Sale and delivery of new circuit breakers from 6 to 6300 Ampere. Miniature Moulded Case (MCC) and Air Circuit Breakers supplied from stock. Partnerships with leading manufacturers including Siemens, ABB, Schneider Electric, Mitsubishi.
2. Installation and Retrofitting: Installation, adjustment, certification, and commissioning of circuit breakers and conversion sets. Includes full project management for site installations worldwide.
3. Maintenance and Service Contracts: On-site certification, maintenance and inspection services. Service Level Agreements (SLAs) with 24/7 call-out availability. Periodic audits and preventive maintenance programs.
4. Spare Part Management: Advice and supply of spare parts for circuit breakers and distribution equipment.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Santon Circuit Breaker Services delivers specialized maintenance, retrofit, and replacement services for industrial low- and medium-voltage circuit breakers (6A to 6300A). Its core offering centers on the Sidunn proprietary conversion sets that enable obsolete breakers to be swapped for new units (Siemens, ABB, Schneider Electric, Mitsubishi) within 2–4 hours, supported by 24/7 emergency call-out, on-site installation/commissioning, periodic inspection/testing, and multi-year Service Level Agreements.

Product overview

Santon Circuit Breaker Services is a specialized service company offering a comprehensive portfolio of circuit breaker solutions. The core offering centers on the Sidunn brand, which provides custom conversion sets (ombouwsets) for retrofitting obsolete circuit breakers without requiring major installation modifications. The company sells new circuit breakers ranging from 6A to 6300A from major manufacturers (Siemens, ABB, Schneider Electric, Mitsubishi), provides switchgear upgrades through forward engineering using 3D printing and CAD tools, and offers comprehensive maintenance services including 24/7 emergency response, inspection/testing, and installation/project management. The Sidunn Retrofit Solutions enable replacement within 2-4 hours while meeting IEC 61439 standards. Additional services include Metroform low-voltage switchgear support and on-site certification.

Differentiator

Problem solved

Functional benefit

Products and services

• Sidunn Retrofit Solutions (Conversion Sets) Proprietary Sidunn brand of conversion sets (ombouwsets), Plug&Play and Semi-Plug&Play variants that allow obsolete circuit breakers to be swapped for new units (Siemens, ABB, Schneider Electric, Mitsubishi) within existing distribution panels in 2–4 hours without major installation changes. Over 1,300 custom sets have been designed, all tested against IEC 61439.
• New Circuit Breakers (6A–6300A) Sale and supply of new Miniature Moulded Case and Air Circuit Breakers from 6A to 6300A, with configurable coils, motors, auxiliaries, and plug-in or withdrawable variants. Distributed brands include Siemens, ABB, Schneider Electric and Mitsubishi, held in stock for overnight delivery worldwide.
• Switchgear Upgrades and Forward Engineering Forward-engineering solutions that adapt existing switchgear to new requirements, including new interlocks, MCC drawer retrofits with modern contactors, breakers and energy-measurement components. Uses 3D printing and CAD to fabricate parts that the original manufacturer no longer supports.
• Metroform Switchgear Support Maintenance, technical and commercial support for Metroform low-voltage switching and distribution equipment. Santon holds all technical documentation and certificates transferred from previous owners and has three specialists with over 100 years of combined Metroform experience.
• Maintenance, Inspection and Certification Services On-site maintenance contracts and SLAs covering primary injection testing, secondary testing, micro-ohm measurements, thermographic inspections, periodic auditing and classification-society certification (Lloyds, Bureau Veritas, DNVGL).
• Installation and Project Management Turnkey on-site installation assistance, project-management support, commissioning, adjustment and certification of circuit breakers and conversion sets worldwide.
• 24/7 Emergency Call-out Service Round-the-clock call-out service for breakdowns and urgent breaker failures, available either bundled with an SLA or on an on-call basis.

Quantifiable outcome

• Replace circuit breaker in 2-4 hours using Sidunn conversion set
• +2 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Schneider ElectriccoreTechnology or IntegrationLong-standing partnership as agent since 1984 (formerly Merlin Gerin Grenoble). Schneider Electric is primary supplier of new circuit breakers including Masterpact NW, NSX, NT, NW series. Santon attends Schneider Electric Digital Information Summit. Sidunn retrofits often use Schneider Electric new switches.
• RH MarineminorStrategic or Co-development PartnerConsultant Kees-Jan van der Ven from RH Marine presented on EMC and EMI at Santon Knowledge Day 2018.
• StedinminorStrategic or Co-development PartnerProgram manager Theo de Bruin from Stedin presented on employee behavior regarding safety rules at Santon Knowledge Day 2018.
• MetroformcoreTechnology or IntegrationSince October 2015, Santon provides support, maintenance, technical and commercial support for Metroform low voltage switching and distribution equipment. Acquired all technical documentation and certificates from previous owners. Three technical specialists with over 100 years combined Metroform experience.
• Lloyds RegisterminorChannel Partner/ Reseller/ DistributorSanton can certify circuit breakers for Lloyds Register, Bureau VERITAS, and DNVGL shipping societies to prove breakers perform as expected.
• Bureau VeritasminorChannel Partner/ Reseller/ DistributorSanton can certify circuit breakers for Bureau VERITAS shipping society compliance.
• DNVGLminorChannel Partner/ Reseller/ DistributorSanton can certify circuit breakers for DNVGL shipping society compliance.

Scale indicators8 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Siemens: OEM of switchgear and circuit breakers sold via Santon. Siemens Smart Infrastructure operates global service and modernization programs that overlap directly with Santon's retrofit and switchgear-upgrade offerings.
• Eaton: Diversified electrical equipment manufacturer with substantial switchgear, breaker, and industrial services operations. Competes with Santon in industrial retrofit and maintenance of low/medium-voltage equipment.
• Schneider Electric: Global switchgear and breaker OEM and Santon's primary new-breaker supplier since 1984 (originally Merlin Gerin). Schneider also operates its own large-scale electrical services and modernization business that competes with Santon for retrofit and maintenance contracts.
• ABB: Major low- and medium-voltage switchgear manufacturer listed among Santon's breaker suppliers. ABB's service organization competes with Santon for breaker retrofit and lifecycle-extension work on installed ABB and legacy equipment.
• Hitachi Energy: High-voltage switchgear and T&D equipment manufacturer (formerly ABB Power Grids). Its service business covers substation and breaker lifecycle services for utility-scale customers comparable to Santon's larger installations.

Direct peers

• Hawkesworth Switchgear Services: UK-based independent specialist in switchgear and circuit breaker servicing, retrofit, and replacement. Closely comparable niche service company competing in the same European industrial and maritime end markets.
• Switchgear Services Ltd: Independent UK switchgear service company focused on circuit breaker maintenance, testing, and retrofit. Closely comparable operating model and customer base to Santon's UK operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/santoncircuitbreakerservices
• LinkedInlinkedin.com/company/santon-circuit-breaker-services

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Santon Circuit Breaker Services