The Ralco 321-R is a 3-pole industrial circuit breaker rated for 30 A, intended for three-phase power protection in electrical panels. It supports operation up to 600 VAC and is configured for 3P4W wiring (three-pole, four-wire). This breaker interrupts current to protect circuits from overloads and short circuits, making it suitable for industrial power distribution and equipment enclosures that require robust three-phase protection.
