Industrial 2C64K1 Instantaneous Current Check Relay

The Industrial 2C64K1 Instantaneous Current Check Relay is a three‑pole protective device that monitors current on each phase and provides immediate signaling to trip or alarm circuits for fast, selective protection. It features three independent instantaneous changeover contacts (phase‑segregated), enabling clean, per‑phase signaling and minimizing overshoot in breaker coordination. In catalog listings it appears as 2C64K1 (BBABA), emphasizing the instantaneous current check function across all three phases. The instantaneous output contacts can be configured to operate in two modes, allowing adaptation to different protection philosophies without altering the core function. Typical applications include three‑phase feeders, motor protection schemes, and other industrial power systems where rapid isolation of fault current is critical to maintain system stability and protect equipment. This relay sits within the 2C6x family of current check devices and is designed to respond directly to abnormal current levels with immediate signaling to the controlled protection equipment, supporting reliable, fast operation in demanding industrial environments.