Square D EHB14020 - 20A, 277VAC, 1-Pole, Circuit Breaker

Meet dependable overcurrent protection with the Square D EHB14020 circuit breaker. Rated for 20 amperes at up to 277 volts, this 1-pole unit is purpose-built for demanding industrial, commercial, and OEM environments where safe, reliable operation matters in distribution panels and motor control centers.

Key specifications

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

Ideal applications

Designed to integrate into panelboards, switchboards, and control panels, the EHB14020 provides targeted protection for individual feeds in systems that run at 277 VAC. It’s a solid choice for distribution panels and motor control centers where space efficiency and straightforward maintenance matter.

What sets it apart

• Compact 1-pole design: Streamlines wiring in crowded electrical enclosures while delivering solid overcurrent protection.
• 277 VAC compatibility: Aligns with common commercial and industrial power networks, enabling reliable protection for lighting, control circuits, and small motor feeds.
• OEM-friendly reliability: Built to support consistent performance in manufacturing lines and equipment racks, reducing downtime from fault events.

Use cases and scenarios

• Protect individual lighting or control circuits in commercial buildings and warehouses operating on 277 VAC.
• Provide dedicated overcurrent protection for motor control center feeders and small-motor circuits within OEM equipment.
• Drop-in replacement in panelboards and switchboards that accept EHB-series breakers, enabling quick maintenance and serviceability.

Practical tips for installation and care

• Verify that your panelboard supports 1-pole EHB breakers and that 277 VAC is the correct supply for the circuit being protected.
• Follow your system’s wiring diagrams to route the load and line connections correctly and to ensure proper isolation when servicing.
• Keep the enclosure clean and dry, and perform periodic checks to confirm the breaker remains securely seated in its bus and that terminations are torque-appropriate per your facility standards.

The Square D EHB14020 delivers precise, reliable overcurrent protection for critical distribution points. With its 20A, 277VAC, 1-pole configuration, it’s a practical, space-conscious solution for safeguarding circuits in panelboards, switchboards, and motor control centers across industrial, commercial, and OEM environments.