Eaton Cutler-Hammer 178C265G05 1A Circuit Breaker, Auxiliary Switch | AmpState

The Eaton Cutler-Hammer 178C265G05 is a compact, dependable 1 A circuit breaker with an integrated auxiliary switch, purpose-built for panelboards, load centers, and electrical distribution networks. Designed to protect low-current circuits with precise tripping while offering immediate signaling through its built-in auxiliary contact, this unit delivers streamlined control and protection in a single, plug‑in package.

Why this 1 A circuit breaker with an auxiliary switch stands out

• Precise low-current protection. A dedicated 1 A rating guards control circuits and feeders in panelboards and load centers, delivering predictable, fast interruption when faults occur.
• Integrated auxiliary switch for signaling. The built-in auxiliary contact provides remote status indication, alarms, or auxiliary control wiring without requiring separate add-ons or adapters.
• Direct part-number match for seamless sourcing. As a precise Eaton Cutler-Hammer fit, it simplifies spare-part management and minimizes downtime from incompatible replacements.
• Compact, space-saving design. A tight form factor fits into crowded panel spaces and standard enclosures without sacrificing performance.
• Trusted engineering for reliable distribution. Engineered by Eaton, known for consistent performance in electrical distribution environments.

Ideal use cases

• New installations or retrofits in panelboards and load centers where low-current protection is required for control circuits.
• Control panels and automation circuits needing an integrated signaling switch for alarms, interlocks, or status monitoring.
• Spare inventory with exact part-number compatibility, ensuring plug‑in readiness and rapid replacement in maintenance programs.
• Repair or replacement projects where downtime must be minimized through quick, compatible installation.

Practical benefits and outcomes

With the 178C265G05, you gain a reliable, plug-in solution that reduces installation steps and inventory complexity. The integrated auxiliary switch eliminates the need for separate signaling devices, cutting wiring complexity and potential mismatch errors. Its exact compatibility means technicians can source confidently, avoiding the guesswork that slows repairs and upgrades. In demanding environments, this unit’s compact design and durable Eaton construction help maintain steady operation of control circuits, even in tight panel configurations.

Compatibility and support

If you’re confirming fit against existing panels or automation systems, AmpState offers assistance to verify compatibility. This part is curated to support dependable panel protection with precise Eaton Cutler-Hammer installation. If you’re safeguarding critical control circuits or stocking reliable, ready-to-install components for future projects, this 1 A circuit breaker with auxiliary switch provides a focused, practical solution aligned with real-world electrical distribution needs.

Product line context: Eaton Cutler-Hammer 178C265G05, a 1 A circuit breaker with integrated auxiliary switch, engineered for dependable signaling and protection in panelboards and load centers. Ideal for technicians, panel builders, and maintenance teams prioritizing exact part-number compatibility and plug-in readiness.