LAIWO is a leading manufacturer of circuit protection equipment

Fully-Compatible-&-Certified-Distribution-Boards-with-Circuit-Breakers

Circuit Protection Equipment Manufacturer

Laiwo (formerly Wosom Electric), established 2002.With a UK branch, we're committed to global innovation and serving customers worldwide.

LAIWO specializes in high-performance distribution boxes and distribution boards, including metal distribution boxes , garage / EV consumer unit, TP&N/MCB metal distribution board, and plastic distribution boxes. It also provides circuit breakers (MCB, RCCB, RCBO), surge protectors, and other circuit protection devices.

As an ISO-certified factory with more than 20 years of ODM/OEM expertise, we provide comprehensive distribution systems to help customers meet power needs in multiple scenarios.

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Key Product Categories

Explore LAIWO’s complete range of circuit breakers, distribution boards, fuse systems and surge protection devices, engineered for safe, compliant and reliable electrical protection. Designed to support distributors, panel builders, contractors and OEM partners across residential, commercial, industrial and new energy applications.

Circuit Breaker

Built for dependable overload, short-circuit and residual current protection, all products are available with CB, SEMKO and UKCA certification, supporting OEM projects, panel builders and electrical distribution across European markets.

MCB / RCCB / RCBO full range coverage
High protection level & long service life
Factory supply with OEM support

Distribution Box

Designed to support faster installation, cleaner wiring and reduced on-site labour, our solutions feature pre-installed busbars, neutral terminals and installer-friendly cable entry designs.

Faster installation with pre-installed busbars
Removable terminals for easier wiring adjustment
SPD & full RCBO ready configurations

Fuse

Designed to support faster installation, simplified maintenance and reduced downtime, our fuse solutions combine high breaking performance with easy system integration for modern electrical distribution.

Wide current range from 2A to 1250A
High breaking capacity up to 120kA
Certified for UK, EU and global markets

Surge Protector

Engineered for dependable protection in distribution boards, EV charging, solar PV and industrial applications, the range supports stable system performance while helping reduce equipment damage and downtime.

Fast response to transient overvoltage
Long service life and stable performance
Easy DIN rail installation

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Certificate Display

ISO9001

WSMC-WFMC-CE-UKCA-Certificate

WSMC-WFMC-CE-LVD-Certificate

TPN-CE-UKCA-Certificate

TPN-CE-LVD-Certificate

More certificates

Why Choose LAIWO

As the preferred manufacturer and supplier of power distribution equipment in the global power industry, our products have served commercial, industrial and new energy charging scenarios in dozens of countries.

Precision manufacturing and stable performance.

Focusing on the field of power distribution equipment for more than 20 years, the full-process quality control system from raw materials to finished products ensures that each distribution box operates stably in harsh scenarios.
Raw material control: UL/CE certified conductive materials are used to accurately control the conductivity and insulation protection level to avoid safety hazards from the source.
Intelligent processing technology: standardized automatic production line with high precision processing, 100% intelligent detection of key processes, and elimination of manual errors.
Full inspection factory standards: Each device passes the triple test of voltage tolerance, insulation resistance, and temperature rise overload, with traceable test reports and industrial durability tests.

Full-scenario customization capabilities to adapt to diverse needs.

Modular functional design: supports free combination of functional modules such as leakage protection (RCCB), intelligent monitoring (IoT module), explosion-proof and anti-corrosion, and adapts to differentiated scenarios such as garages, charging stations, and industrial plants.
Global compliance certification: Passed international standard certifications such as IEC/UL/CE, and simultaneously met localized compliance requirements such as the EU Low Voltage Directive (LVD) and North American NEC electrical specifications.
Branded delivery solution: Provide laser engraving LOGO, customized packaging and technical manuals to help customers create a unique brand image.
Mature supply chain: 20+ years of OEM/ODM service experience, an average daily production capacity of 5,000+ in automated factories, and multiple series of inventory to ensure fast delivery.

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