Aierway SRC6-40.5 fully insulated inflatable ring switchgear

Product introduction

The Aierway SRC6-40.5 is an advanced, medium-voltage ring main unit (RMU) designed for the demanding requirements of primary distribution networks up to 40.5kV. It represents a significant leap in switchgear design by integrating the principle of “inflatable” or “fully insulated sealed” technology to achieve unparalleled reliability, safety, and a maintenance-free operational life in a compact form factor. This product is ideally suited for power distribution in utilities, industrial plants, mining operations, data centers, and renewable energy substations.

Typical configuration & Modules

Similar to its 12kV counterpart, the SRC6-40.5 is modular and can be configured with various functional units:

1.Load Break Switch (LBS) Modules:** For making, breaking, and isolating load currents. Often configured as a 3-position switch (ON-OFF-EARTH).
2.Circuit Breaker (CB) Modules:** Equipped with a **Vacuum Circuit Breaker (VCB)** for superior protection, capable of interrupting fault currents. This is the preferred choice for

3.Fuse-Protected Combination Modules:** Integrating high-voltage current-limiting fuses with a load break switch or circuit breaker for the protection of distribution transformers.
4.Cable Connecting/Bushing Modules:** Provide the interface for incoming and outgoing power cables.

Technical data table