uk manufacturer of rogowski coils

Latest Products

M880-DMF DIN Rail Power Meters

The new range of Hobut DIN rail mounting power meters feature seven selectable colour backlight LCD screens. The range is easy to use and features user-programmable CT & VT ratios that can be used on any single or 3 phase system.

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CT132Tran Current Sensor/ Current Transducer

A range of current sensors / current transducers available with 0-5V / 0-10V DC self powered output or 4-20mA loop powered output.

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Clip together plug-in short circuit

Our new Split Core current transformer features a unique plug-in short circuit link for safety. It is supplied in a moulded case with 1 metre double insulated flying lead and bootlace ferrule terminations.

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3 Phase CT with inbuilt Power Meter

The C-Tran is combined 3 phase multifunction AC Power transducer and 3 phase current transformer.
The C-Tran is fully programmable through either of the two communication ports

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Earth Leakage Relays

Variable Earth Leakage Relays in compact 35mm din rail mounting cases for use on 3 phase electrical systems.

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Moulded Case Rectangular Current Transformers

5 rectangular style moulded case current transformers in compact cases to suit a range of busbar sizes.

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View our UK manufacturing plant

Howard Butler LTD is a UK manufacturer of instrumentation & control products such as current transformers, digital and analogue meters, transducers and protection relays. Howard Butler Ltd exports worldwide. We have been manufacturing in the UK since 1915 and employ over 100 people. View our manufacturing plant below.


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Latest news

What is SEO and why it is important?

What is SEO and why it is important? What is SEO? SEO stands for “search engine optimization.” In simple terms, it means the process of improving your website to increase its visibility when people search for products or services related to your business in Google, Bing, and other search engines. The better visibility your pages… Read More »

Remote Working Vs Office Working and the impact on performance

Remote working or Work from Home (WFH) has only really been a topic of conversation from the start of the COVID-19 pandemic and lockdown, as more employees are opting to work remotely. According to the ONS, the proportion of working adults who did any type of work from home in 2020 increased to 37% on… Read More »

What Impact Has Covid-19 Had On The Power Industry?

As the effects of COVID-19 ripple across the world, we look at how this has impacted businesses within the Power Industry. The Power Industry is the engine of the global economy, supplying electricity to all other industry sectors. Goods and services depend on it. The spread of COVID-19, in particular, has caused mass production shutdowns,… Read More »

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