New and refurbished Ring Main Units
The UK’s Largest Stock of Ring Main Units
We are a leading UK supplier of quality new and refurbished ring main units renowned for our engineering expertise, responsiveness and large stock of equipment.
Manufactured and tested in accordance with internationally recognised standards (IEC62271 or equivalent), we supply and support ring main units in the following sectors:
Power Distribution
Industrial & Commercial
Renewables
Construction & Infrastructure
Ring main units can be supplied standalone or complete with distribution transformers and LV switchgear for a package substation solution, and come complete with industry leading 24 month (new) or 36 month (refurbished) warranties.
We sell and hire ring main units on a ‘supply only’ basis, or with optional on-site installation by our own Contracting division.
New RMUs Immediately Available From Stock
We supply a range of new SF6 ring main units, offering transformer mounted or freestanding (extensible or non-extensible) units from leading manufacturers for applications up to 11KV, 20kV or 33kV.
We hold standard Schneider RN2c & RN2d & Lucy VRN2a models in stock for same day dispatch.
Schneider Ringmaster:
- Standard 200A RN2c & RN2d T1 (TLF) and T2 (VIP300 & VIP400) units are immediately available from stock
- For 11kV applications (up to 15kV)
- Custom specification RN2d, RN2c, RN6d & RE2d units also available
- 24 month comprehensive warranty
Lucy Sabre:
- Standard 200A VRN2a units immediately available from stock
- TLF or self-powered SIA-C relay protection
- For 11kV applications (up to 12kV)
- Custom specification and units up to 24kV also available
- 24 month comprehensive warranty
Quality Refurbished Ring Main Units
Our range of freestanding or transformer mounted refurbished ring main units is very popular with customers looking for an economical option, a like-for-like replacement or urgent requirements.
We stock SF6 & oil insulated models from leading manufacturers including Schneider/Merlin Gerin, Lucy, GEC and Long & Crawford. Professionally refurbished by our engineers to ‘as new’ condition and performance, refurbished ring main units are supplied with an enhanced 36 month warranty.
Ringmaster (SF6):
- RN2
- RN2c
- RE2c
- RN6c
- All of the above available with TLF (T1) or VIP (T2) protection
Other Makes:
- Lucy Sabre VRN24 (24kV) & VRN2a (both SF6)
- Lucy Trident FRMU (oil)
- Long & Crawford T3GF3 & T4GF3 (oil)
- GEC RT Saturn (SF6)
- Brush/Hawker Siddeley Falcon Beta (SF6)
Do you prefer to get in touch with us via email?
No problem, we will respond to your enquiry without delay.
Ring Main Unit Services & Spares
We also provide a range of services and spare parts to keep your existing ring main units operating safely and reliably.
Services available:
- Ring main unit testing & commission
- Ring main unit maintenance
- Ring main unit installation & cabling
- Ring main unit refurbishment, repair & upgrades
- Switching by qualified SAPs
- SF6 handling
- Ring main unit hire
- Ring main unit decommissioning, removal & disposal
Spare parts available include:
- Cable boxes
- Bushings
- Motor mechs
- Protection relays
- Trip coils
- Current transformers
- Time lag fuses
- Operating handles
- Gaskets
- Panels, covers & stands
Why Choose Slaters Electricals?
We pride ourselves on our ability to supply quality switchgear to suit your requirements on a short lead time and our renowned after sales service.
With almost 100 years of switchgear engineering experience and know-how, our success is built on consistently exceeding our customer’s expectations and an exceptionally high number of returning customers.
The following organisations choose ring main units from Slaters:
Take the Next Step…
Experienced Electrical Engineers know to always call Slaters first.
…or first browse our current stock of ring main units below:
| Categories | Manufacturer | Type Reference | Condition | Availability | Details |
|---|---|---|---|---|---|
| SF6 Ring Main Units | Schneider | RE2c | New, Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Schneider | RN6c | New, Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Schneider | RN2c | New, Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Yorkshire Switchgear | Ringmaster 2 | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Schneider | RN2c | New, Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Schneider | RE2c | New, Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Lucy | VRN2 | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Lucy | VRN | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Lucy | SFRMU | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | GEC | RT | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Long & Crawford | LCGT | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | ABB | Sentinel 3 | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Yorkshire Switchgear | Tyke 2A | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Yorkshire Switchgear | Tyke | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Reyrolle | ROKSS | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Lucy | FRMU | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Long & Crawford | T4GF3 | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Long & Crawford | T3GF3 | Refurbished | For Hire, For Sale, For Spares | Show details |
| Oil Ring Main Units | Long & Crawford | LNC24 | Refurbished | For Hire, For Sale, For Spares | Show details |
| SF6 Ring Main Units | Hawker Siddeley | Falcon Beta | Refurbished | For Hire, For Sale, For Spares | Show details |