- RT18 125 circuit breaker base, available in 1P, 3P and 4P configurations. - Includes RT18L 125 1P Base circuit breaker holder for secure mounting. - The base supports multiple pole options to fit single-phase, three-phase, or four-phase systems. - Durable construction and standardized footprint deliver reliable performance in panels and enclosures. - The holder is designed to hold the corresponding circuit breaker securely, resisting vibration and accidental dislodgement. - Benefits: easy installation, flexible compatibility, compact size, and dependable protection. - Use cases: - Residential or small commercial panels with 1P RT18 125 and its base. - Industrial control panels requiring 3P protection for motors or loads. - Distribution boards with 4P arrangements for multi-pole protection. - Why choose it: trusted RT18 125 ecosystem, consistent mounting, quick replacement, and reduced wiring errors.