HCA Series Vacuum Circuit Breaker Technical Specifications

This document provides guaranteed technical specifications for the HCA series vacuum circuit breaker, covering three model variants (HCA 12/1240, HCA 12/2040, and HCA 12/3040) rated per IEC 62271-100. It details electrical ratings including voltage (12kV, 50Hz), continuous current (1250A to 3000A), short-circuit withstand (40kA rms for 3 seconds), breaking capacity, contact travel, and insulation levels.