Square D 38E1 - 14020-20A, 277VAC, 1-Pole, Circuit Breaker

Precision overcurrent protection for 277 V circuits. The Square D 38E1 - 14020-20A is a 1-Pole circuit breaker built for industrial, commercial, and OEM environments. Designed to install in panelboards, switchboards, and control panels, it delivers reliable safeguarding for critical electrical systems.

This breaker excels in distribution panels and motor control centers where dependable operation matters. Its compact, rugged design helps you maximize panel space without compromising protection, making it a practical choice for demanding installations.

• Current rating: 20 A (model 14020-20A)
• Voltage rating: 277 VAC
• Poles: 1-Pole
• Breaker type: Circuit Breaker

Why this Square D 38E1 breaker stands out

Key advantages you’ll notice on the job site include straightforward integration with existing Square D panel systems, predictable tripping behavior, and robust performance in environments subject to voltage fluctuations. It’s specifically engineered to protect individual feeders, control circuits, and lighting runs within 277 VAC networks, helping prevent equipment damage and downtime.

• Targeted protection: Ideal for safeguarding single circuits in panelboards and control centers, reducing risk to motors and instrumentation.
• Space-efficient design: A compact footprint that fits tightly packed enclosures and dense panel layouts.
• Operational reliability: Consistent performance across industrial and commercial settings ensures safer, quieter operation over time.

Practical use cases

• New installations where 277 VAC feeds control panels, lighting controls, or small power circuits.
• OEM assemblies requiring a precise 20 A, 1-Pole protection device compatible with Square D ecosystems.
• Repairs or retrofits in existing Square D distribution panels to maintain established protection standards.

Quick reference for installation and compatibility

• Verify panel compatibility with the Square D 38E1 family to ensure proper fit and operation.
• Plan multiple breakers with balanced loads to minimize nuisance trips in a shared bus configuration.