Welcome to Midland Jay

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We are one of the leading manufacturers and suppliers of Supply Monitoring Relays in the UK.

Our extensive manufactured product range includes combinations of Under Voltage, Over Voltage, Phase Failure, Phase Rotation, Phase Imbalance, Under Current, Over Current, Thermistor and Frequency Monitoring along with our own range of Timers, Liquid Level Relays and Temperature Controllers.

In addition to our manufactured products, we also offer a sub-assembly service where we can populate PCBs, Electronic Assembly and carry out Final testing. see the service page.

Please note we stock a large quantity  of Cutler-Hammer Freedom range of contactors and accessories along with starters.


Using the web pages.

To help you navigate our product range, we have divided the Products section of this website into six groups: Supply Monitoring Relays, Brown-out Timers, Standard Timers, Themistor Relays, Current Monitoring Relays and Liquid Level Relays. In each section there is the opportunity to select the correct item for your application and download the product data sheet.


Midlandjay products can be sourced through ourselves on email sales@midlandjay.co.uk  or from our sister company on  www.kempstoncontrols.co.uk

What We Do?

- Design and Manufacture Supply Monitoring Relays
- Population of pcb's
- Adaption of sensors to suit particular applications
- Electronic assembly
- Small control panels
- Building of Cable Harness's
- Final test facility.

You can contact our sales team via:

Email: sales@midlandjay.co.uk

Tel: +44 (0) 1484 461133

Did you know?

MidlandJay are the only providers of a true fast response Brown Out Timer.
To see our other products, check out our Products Page.