SMC distribution boxes are enclosures designed to house and protect electrical components, such as circuit breakers, relays, and terminal blocks. Ideal for both indoor and outdoor applications, our SMC distribution. Power Up Your Distribution System with SMC/FRP Boxes! Durable, reliable, and built to last, our distribution boxes ensure safety and efficiency for your electrical systems. Made from high-grade Sheet Moulding Compound (SMC), these boxes provide unmatched protection against environmental hazards and.