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Industrial Automation & Control Systems

GRP RMU Enclosures

GRP RMU Enclosures for Medium Voltage Distribution Networks

RIGID Fiberglass manufactures high-performance GRP RMU (Ring Main Unit) Enclosures designed to house medium-voltage switchgear equipment used in electrical distribution networks. Engineered for harsh outdoor environments, these enclosures provide superior protection against corrosion, UV radiation, moisture ingress, dust, sandstorms, and extreme temperatures. GRP RMU enclosures are widely used by utilities, industrial plants, renewable energy projects, airports, railways, and smart city developments.

Key Features

Corrosion-resistant GRP construction
Suitable for coastal and desert environments
UV stabilized exterior gelcoat
Non-conductive and electrically safe
Fire-retardant construction available
Excellent thermal insulation
Lightweight yet structurally strong
Maintenance-free design

Applications

Ring Main Units (RMU) Secondary substations Distribution transformer stations Utility distribution networks Renewable energy projects Industrial power systems

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Technical Data

Product Specifications

Material	GRP / FRP Composite
Protection Rating	IP55 / IP65 / IP66
Impact Rating	IK10
Resin System	Polyester / Vinyl Ester
Fire Retardancy	UL94 V0
Operating Temperature	-40°C to +80°C
Door Type	Single / Double / Multi Door
Cable Entry	Bottom / Side
Arc Venting Option	Available
Hardware Material	SS304 / SS316
Design Life	25+ Years
Standards	IEC 62271, IEC 62208, IEC 60529