Share this article Share this article ResearchAndMarkets.com's offering. The global circuit breaker market size is projected to grow from an estimated USD 5.7 billion in 2020 to USD 7.7 billion by 2025, at a CAGR of 5.9% from 2020 to 2025. The key drivers for the circuit breaker market include growing investments in power generation, specifically from renewable energy sources; rising demand for reliable and secure power supply worldwide; increasing capacity additions and enhancements for T&D networks; and accelerating investments in railways sectors. The gas circuit breaker segment is expected to hold the largest share of the circuit breaker market, by insulation type, during the forecast period.