ABB S201-K8 8A 1-Pole 277 V Circuit Breaker

Introducing the ABB S201-K8 8A 1-Pole 277 V Circuit Breaker — a precise, single‑pole protection device designed for commercial electrical systems. With an 8 amp current rating and a 277 volt operating capability, this breaker is purpose-built to safeguard lighting and small-load circuits without overreaching into higher‑demand loads.

What makes the ABB S201-K8 stand out

• Targeted protection for single‑pole circuits: A compact, single-pole design that fits neatly into standard panel setups while guarding the hot conductor against overloads.
• 277 V specialization: Optimized for commercial building environments where 277 V lighting and control circuits are common, helping to stabilize performance and reduce nuisance trips on high‑voltage lighting networks.
• Clear identification with part number: S201-K8 labeling simplifies maintenance, replacement, and inventory management for technicians and facility teams.
• Straightforward replacement and maintenance: Known form factor and rating streamline upgrades, part swaps, and ongoing system reliability.

Ideal for whom and where

• Electrical contractors installing or upgrading commercial panels that serve lighting, signage, or small‑load control circuits operating around 277 V.
• Facility managers and building engineers responsible for dependable, code‑consistent protection in offices, retail spaces, warehouses, and hospitality environments.
• System integrators incorporating reliable, low‑amp protection for localized loads in 277 V distribution networks.

Usage scenarios and practical benefits

• Protects individual lighting branches in 277 V commercial lighting systems, helping prevent damage from overloads and short circuits.
• Ideal as a dedicated breaker for small equipment circuits (fans, controllers, sensors) that operate on 277 V within a management or service panel.
• When a circuit needs easy replacement without reconfiguring an entire panel, the S201-K8 provides a familiar, dependable option for fast service restores.

Why choose ABB for this application

ABB’s S201‑K8 combines trusted performance with job‑specific specs suited to commercial electrical layouts. The 8 A rating aligns with typical branch loads for lighting and small equipment, while the 1‑pole configuration keeps installs simple and space‑efficient. Choosing this breaker supports reliable protection, straightforward maintenance, and consistent part availability for ongoing facility operation.

Installation and care tips

• Confirm compatibility: ensure your panel accepts the S201‑K8 1‑pole, 8 A, 277 V type for safe and compliant operation.
• Follow standard electrical safety practices: disconnect power, use appropriate PPE, and verify circuit integrity after installation.
• Schedule routine checks: replace any breaker showing signs of wear, overheating, or degraded trip response to maintain protective performance.