The ABB GHS2230001R0337 is a 4-amp, 3-pole DIN rail mount circuit breaker rated for 690 VAC with a K-curve trip characteristic. The K-curve is designed for motor and transformer branch circuits where inrush currents are higher than resistive loads — it holds through the magnetizing inrush without nuisance tripping, then clears faster than a D-curve on hard faults. This makes it a fit for protecting inductive loads like small motors, solenoids, and control transformers in a panel.
The GHS2230001R0337 carries a current lifecycle stage, meaning it remains in ABB's active catalog for new builds and replacements. No last-time-buy or phase-out notice applies to this order code.