Although this product range is now obsolete from full manufacture, we pride ourselves on having the ability to provide a full spares, service & repair service for all Hawker Siddeley Switchgear heritage products.




We can offer a range of spares for the MM81 to meet your requirements, including:

  • Relays
  • Main Contacts
  • Shunt Trip Coils
  • Closing Coils
  • Springs

Tools Available

Tools available include:

  • Racking Handle
  • Closing Handle
  • Lifting Arm RH & LH
  • Wear Gauge

All enquiries should be forwarded to the Spares Department at or click here to request a quote.

Alternatively click on “Key Contacts” and speak to one of our experienced sales team.



get in touch

Contact HSS

+44 (0)1495 223001

+44 (0)1509 611511

+ 61 7 3888 2333

what we've done

case studies

SSEN - Horizon Framework

Electricity Northwest Ltd - MediPark