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 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

The First Look at Hobut’s New Raw Material Stores

Back in November 2018, Hobut announced the acquisition of British Core Manufacturer, Unicores Limited which will help to secure and enhance our supply chain. This was in addition to the significant recent investment to our production facilities which also included the recruitment of highly skilled engineers. As part of our ongoing commitment to British Manufacturing… Read More »

HOBUT Arrives in Dubai

HOBUT have travelled over 4,500 miles from its Manufacturing Headquarters in Walsall, West Midlands, UK to Dubai, UAE to exhibit in the World’s largest Power Exhibition. More than 60,000 industry professionals will descend on the World Trade Centre which will bring together manufacturers, global experts, governments, procurement, project managers and contractors in the following sectors:… Read More »

Do You REALLY Know Where Your Products Are Coming From?

With the rise of internet business (across any sector), there has most definitely been a corresponding rise in what we will diplomatically call ‘blurred boundaries’. In other words, presenting a product or service in a particular light, when in reality, it doesn’t conform on every level. You may be purchasing, for example, low-voltage products. You… Read More »

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