Default page background image

Distribution Transformers Tier 1 & Tier 2

Our standard range of Tier 1 Distribution Transformers and also our Tier 2 units are manufactured using cold rolled grain oriented (CRGO) steel. They typically range from 50kVA to 3150kVA with voltage ratio’s 3.3kV, 6.6kV,11kV and 33kV step down to 415V Vector Dyn11 and include an extended voltage tapping range -5% to +7.5%

Our transformers are manufactured in accordance with national and internationally recognised standards. Where necessary they are fully compliant with the Tier 1 EU commission regulation 548/2014 on Ecodesign.

Affordable and with all the guarantees that the Bowers name brings, the range is manufactured to BSEN60076 standards. We carry many for stock – ensuring a fast turnaround from the time of order – and to meet customers specific requirements.

Units are typically designed with HV and LV flanges to BS2562 facings suitable for accommodation of bolt-on HV and LV cable boxes or LV transformer mounted feeder pillars/ACB/MCCB cabinets and HV transformer mounted switchgear to ENATS standards.

Bowers standard units are also fitted with bolt-on panel design radiators and have been carefully designed so that HV switchgear can be fitted without interfering with the radiators – removing the need for extensive throats.

Standard transformers are available in all cooling mediums including:

  • Oil (ONAN)
  • Midel, FR3 (KNAN)


If you are unsure how the Ecodesign legislation affects you, have a look at our FAQ or get in touch.


Enquire About Our Tier 1 & Tier 2 Distribution Transformers

Your Name (required)

Company Name (required)

Telephone Number (required)

Your Email (required)

Your Message