About · CBSMS Ltd, Pontefract, England
About ACB Refurb: the breaker workshop behind the name
ACB Refurb is the US face of a specialist breaker and contactor workshop in West Yorkshire, England. The engineers who strip your breaker are the same people who answer your email. There's no call center between you and the bench.
- CompanyCBSMS Ltd · No. 14239492
- WorkshopPontefract, England
- Management systemsISO 9001 · 14001 · 45001
- Hours (ET)3am–12pm, Mon–Fri

Who we are
Switchgear people, not a general electrical firm
ACB Refurb is a trading name of Circuit Breaker Sales & Maintenance Services Ltd (CBSMS Ltd), registered in England and Wales under Company No. 14239492 and incorporated in 2022. The team brings more than 20 years of installing, maintaining and repairing low-voltage breakers.
In the UK the same workshop trades as Circuit Breaker Repair (circuitbreakerrepair.co.uk), and the company as CBSMS (cbsms.co.uk), which handles switchgear maintenance and servicing. ACB Refurb is the name we use for US customers. Whichever name is on the website, your contract, warranty and paperwork are with CBSMS Ltd.
Our work is delivered under CBSMS Ltd's ISO 9001 (quality), ISO 14001 (environmental) and ISO 45001 (occupational health and safety) management systems.
Company details
| Legal entity | Circuit Breaker Sales & Maintenance Services Ltd (CBSMS Ltd) |
| Company No. | 14239492, registered in England and Wales |
| Trading names | ACB Refurb (US) · Circuit Breaker Repair · CBSMS |
| Workshop | Unit 13–17 Dale Court, South Kirkby Business Park, Pontefract, West Yorkshire WF9 3FL, England |
| Management systems | ISO 9001, ISO 14001, ISO 45001 |
The workshop
Benches, test equipment and donor stock
We work from a workshop at Dale Court on South Kirkby Business Park, Pontefract. Breaker and contactor repair is what it is set up for.
The workshop handles strip-downs, mechanism rebuilds, contact replacement, coil and charging-motor replacement, protection-unit repair and contactor restoration. Secondary injection testing is done in-house, including with ABB's own Ekip test kit for Emax trip units.
We keep donor stock for obsolete ranges and machine components that can no longer be bought. That is what lets us repair Masterpact M, first-generation Emax and TeSys F contactors when the manufacturers have moved on.
We quote a fixed price after strip-down, not an estimate that grows. If a unit isn't worth repairing because of fault damage, safety-critical wear or parts that can't be had, we say so.




Why a UK workshop
For US sites with European switchgear
European turbines, production lines and switchboards arrive in the US with the breakers and contactors their designers chose: Masterpact, Emax, Siemens 3WL, Eaton IZM, TeSys LC1F. In the US those are IEC-frame units, and the domestic service channels are set up for the North American ranges. For the first-generation frames, repair capability is close to absent.
These ranges are our everyday work in the UK, and we already ship them across the Atlantic for US customers. Distance is handled with air freight: about 3 days each way, with 2–5 working days in the workshop, or 1–2 days on Express. You choose DAP or DDP, and we prepare the commercial invoice and repair-and-return paperwork.
For urgent faults, we hold many tested exchange units in the UK* that ship the day a fault is reported. Where there are too many units to fly, our engineers can travel to your US site.
*Subject to model and rating.
How it works Shipping & customs Exchange units On-site in the US
What we work on
- ABB SACE Emax E1–E6 and Emax 2 E1.2–E6.2, including UL-listed "-A" versions
- Schneider Masterpact M, NT and NW, and MTZ
- Siemens 3WL, all frame sizes
- Eaton / Moeller IZM, IN, IZMX
- Schneider TeSys LC1F 265–2100 A, ABB AF / A-series, Siemens 3RT / 3TF contactors
Industries: wind farms, data centers and industrial plants.
Reach us
Working with us from the US
We're five hours ahead of Eastern time and six ahead of Central.
Hours
Monday to Friday, 8am–5pm UK time. That's 3am–12pm Eastern and 2am–11am Central. Email is answered the same working day, and calls can be arranged in your afternoon.
info@circuitbreakerrepair.co.uk. Nameplate photos and a description of the fault are enough for a first answer.
Phone
UK workshop: +44 1977 253063. Out of hours: +44 7496 013884.
Paperwork and payment
Documents in English, imperial or metric, in your QA format if you send one. Payment in GBP or USD by bank transfer.
FAQ
About working with us
Who is my contract with?
Circuit Breaker Sales & Maintenance Services Ltd (CBSMS Ltd), Company No. 14239492, registered in England and Wales. ACB Refurb and Circuit Breaker Repair are trading names of the same company.
Do you have a US office?
No. The work is done in our workshop in Pontefract, England, and units travel by air freight. Where a site has too many units to fly, our engineers can travel to the US and do the work on site.
What quality systems do you work under?
Our work is delivered under CBSMS Ltd's ISO 9001, ISO 14001 and ISO 45001 management systems.
Can we pay in US dollars?
Yes. We quote and invoice in GBP or USD, paid by bank transfer.
Send us the nameplate
A photo of the nameplate and the fault is enough for a first answer. We reply the same working day with a recommendation and a price for diagnosis and freight.