Medium-voltage busway

GM-Z MV Busway

Cast-resin medium-voltage busway for generator and transformer connections on large power projects. Engineered per project.

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Rated voltage: 3.6 – 40.5 kV
Rated current: 800 – 6300 A
Protection: IP68 · IK10 (12 kV)
Standard: IEC 62271-1

GM-Z MV Busway (illustrative render) — Illustrative render

Before you continue: is your project medium voltage?

Your system runs at medium voltage
You are connecting generators, transformers or switchgear
It is a large power or industrial project

Distributing low-voltage power inside a building? Use LVA, or GM where you need IP68.

Compare low-voltage systems

Overview

Medium-voltage busway

GM-Z is a cast-resin busway for medium-voltage power, typically linking generators, transformers and switchgear in power plants and large industrial sites. Every GM-Z system is engineered and quoted project by project with our specialist team.

Best for: Medium-voltage connections on large power projects

Key features

Medium voltage only
Built for MV connections. Building distribution belongs on LVA or GM.
Cast-resin insulation
The same sealed, cast-resin approach as GM, applied to medium voltage.
Engineered per project
Ratings, routing and terminations are defined with your engineering team.
Specialist review
A specialist checks your single-line diagram before anything is quoted.

Technical specifications

GM-Z MV Busway

Rated voltage: 3.6 – 40.5 kV
Rated current: 800 – 6300 A (12 kV) · 1600 – 4000 A (35 kV)
Conductor: Copper
Frequency: 50 / 60 Hz
Protection: IP68 / IK10 (12 kV) · IP67 / IK10 (35 kV)
Design standard: IEC 62271-1 · IEC 62271-200
Insulation: Cast resin
Typical connection: Generator / transformer / switchgear

Source: ElectriDistro technical manual ED-MT-GMZ-EN. Values as published in the manufacturer's documentation. Your quotation confirms the exact configuration.