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Get all the benefits of our Ringmaster RN2d with the advanced communication and automation using Easergy T300:

New Ringmaster RN2d

Ringmasters RN2d compact, robust design delivers reliable performance, both indoors and outdoors, from commercial applications to the harshest of industrial environments.
RN2d has a high-level reliability, safety and flexibility. It is an SF6 Insulated Ring Main Unit (RMU) for medium voltage networks up to 13.8kV with improvement guided by customer feedback and design failure mode and effect analysis (DFMEA).
Ringmaster RN2d range

Ringmaster Summary

RN2D (full version)
New facia
Enhanced DFMEA RSW Mechanism
Enhanced through DFMEA CB Mechanism
Bushing Type Short Short or Type C
Internal Arc cable Box (13.1kA) 13.1kA - 21kA
Internal Arc Enclsoure (21kA)
Anti Theft Earth
Quality Improvements
ENA 41-38 Issue 3
New Designation / No Saturation
VIP 400

Transitioning to a Smart Grid

How can you maintain power quality?

With widespread integration of distributed energy resources along the network, Smart Grid capabilities are being introduced into MV/LV substations to maintain power quality and achieve greater service continuity.

Read White Paper
transition to smart grid

Excellence Redefined

ecg machine showing heartbeats


More robust Switch & Breaker mechanism

Short (Type A) or Type C bushing 

New VIP400 relay with advanced protection features

Earth circuit re-designed for anti-theft 

VPIS functioning from minimum of 6.6kV


Additional test access points for Switch function

Improved front facia with easy to read mimic


Easy to install & maintain


Improved Internal Arc performance 

Metalised screen tank offers touch proof feature

Insensitive to harsh environment

Complies to latest seismic standards

network signal in the smart phone


New Easergy T300 FRTU for advanced communication

MV/LV control & monitoring 

Compact & modular, configurable to your needs

Flexible communication media (ethernet, USB, GPRS, 3G, PSTN, Radio)

Complies to latest cyber security standards

Ringmaster RN2d features

History of Ringmaster


Outdoor oil filled ring main unit using HRC fuse switch technology


First gas-insulated Ringmaster Ring Main Unit (RMU)


RN2c version launched


Latest evolutions launched - RN2d, RN6d, RE2d & RE6d - reliable, safe, flexible and smart
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