Square D EGB16035 - 35 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EGB16035—a reliable 1-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. With a 35 A rating at 277 V, this compact device delivers precise, consistent overcurrent and short-circuit protection where it matters most, keeping electrical systems safe and uninterrupted.

• Secure bolt-on mounting: Designed for a rigid, vibration-resistant bus connection, the EGB16035 stays firmly seated even in environments with equipment vibration or movement.
• Thermal-magnetic trip unit: Combines fast response to short circuits with stable, repeatable protection—reducing nuisance trips and protecting downstream circuitry.
• 1-pole, 35 A, 277 V: Optimized for single-circuit protection in commercial and light-industrial layouts where 277 V circuits are common.
• OEM-compatible: Built to integrate seamlessly with matching Square D loadcenters and panelboards, ensuring dependable electrical coordination and space efficiency.
• Versatile installation: Suitable for residential, commercial, and light-industrial applications, offering flexibility across a range of electrical designs.

Why this breaker matters in your electrical design

The EGB16035 isn’t just a switch. It’s a critical safeguard that ensures a single branch circuit receives precise protection against overloads and faults. The bolt-on mounting provides a robust mechanical connection, which helps prevent loose contacts and potential arcing in bus connections. The thermal-magnetic trip unit responds quickly to faults while reducing false trips on normal inrush currents—an important balance for lighting, small machinery, or HVAC circuits in commercial spaces.

Technical details at a glance

• Manufacturer: Square D
• Part number: EGB16035
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 35 A
• Voltage rating: 277 V
• Number of poles: 1
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios

Ideal for protecting a dedicated branch circuit in commercial lighting panels, office equipment circuits, or lightweight industrial feeders where 277 V operation is standard. Its secure bolt-on design makes it a durable choice for panelboards exposed to vibrations in equipment rooms, basements, or industrial suites. If you’re upgrading a panel or matching a Square D loadcenter, the EGB16035 provides compatible, reliable protection without sacrificing space or performance.

What sets it apart from generic breakers

Unlike aftermarket substitutes, the EGB16035 is purpose-built to integrate with Square D panelboards and loadcenters, ensuring consistent trip characteristics, mechanical fit, and electrical coordination. The combination of a bolt-on mounting system and a thermal-magnetic trip unit delivers a balance of rigidity and intelligent protection that minimizes downtime and maintenance needs in busy electrical infrastructure.

Whether you’re stocking a commercial electrical room, upgrading a storefront panel, or provisioning a light-industrial panelboard, the Square D EGB16035 provides trustworthy protection with straightforward installation and long-term reliability.