ABB HSMS20C Housemaster 20 way steel consumer unit supplied with a 100 A double pole main switch isolator for residential and commercial electrical distribution.
The ABB HSMS20C is a high-quality 20-way steel consumer unit from the trusted ABB Housemaster range, designed to provide safe, reliable and compliant electrical power distribution for residential and light commercial installations. Manufactured from robust steel and supplied complete with a 100 A double pole main isolator, it offers a dependable solution for modern electrical installations requiring durability and ease of installation.
Designed for surface mounting, the HSMS20C combines a compact footprint with generous wiring space, making installation straightforward for electrical contractors and panel builders. The steel enclosure complies with modern installation requirements while providing long-lasting protection for miniature circuit breakers (MCBs) and residual current protection devices.
Featuring a 20-way, single-row configuration, the ABB HSMS20C is ideal for new installations, refurbishments and domestic electrical distribution systems where reliable circuit protection and straightforward maintenance are essential.
Consumer units provide centralised electrical distribution while protecting individual circuits using miniature circuit breakers and other protective devices. The ABB Housemaster range is engineered to deliver dependable operation, simplify installation and provide long-term reliability in residential and light commercial environments.
The HSMS20C combines ABB's proven electrical engineering expertise with a durable steel enclosure and practical internal layout, helping electricians complete installations efficiently while meeting current wiring requirements.
| Manufacturer | ABB |
|---|---|
| Series | Housemaster |
| Model | HSMS20C |
| Manufacturer Part Number | 1SKB122142C4001 |
| Product type | Steel consumer unit |
| Configuration | 20-way, single row |
| Main switch rating | 100 A |
| Main switch poles | 2 pole |
| Mounting type | Surface mounting |
| Housing material | Cold rolled steel |
| Protection rating | IP30 |
| Modular capacity | 22 modules |
| Dimensions (H × W × D) | Approx. 440 × 270 × 110 mm |
| EAN | 6221115048815 |
The HSMS20C is a steel consumer unit used to distribute electrical power safely throughout residential and light commercial installations while housing circuit protection devices.
The ABB HSMS20C provides 20 outgoing ways in a single-row configuration for miniature circuit breakers or compatible protection devices.
Yes. The consumer unit is supplied complete with a 100 A double pole main switch isolator.
The enclosure is manufactured from robust cold rolled steel and offers an IP30 protection rating for indoor installations.
The HSMS20C is typically installed in residential properties, apartments, offices and light commercial buildings requiring reliable low voltage electrical distribution.
ABB Housemaster consumer units are trusted by electricians, contractors and electrical engineers worldwide for dependable circuit protection, robust construction and reliable long-term performance.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...