Square D ECB24030G3 - 30 A, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D ECB24030G3 is a 30A, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers.

Bolt-on reliability that lasts

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, helping maintain consistent electrical performance over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection across varying loads and conditions, with fast response to short circuits.
• 2-pole design ensures simultaneous disconnection of both poles for enhanced safety and code-compliant shutoff.
• OEM-compatible with matching Square D load centers and panelboards, simplifying installation and future replacements.

Technical snapshot

• Manufacturer: Square D
• Part number: ECB24030G3
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30A
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for a range of setups

Whether you’re updating a home electrical panel, outfitting a commercial panelboard, or provisioning a light industrial installation, the ECB24030G3 offers reliable protection with OEM compatibility. It’s a practical choice for residential, commercial, and light industrial environments where dependable overcurrent protection is critical and where a sturdy, vibration-resistant connection matters most.

Why this breaker stands out

Unlike lighter-duty or less robust solutions, the ECB24030G3 prioritizes durable mounting and consistent trip performance. The combination of bolt-on stability, a thermal-magnetic trip unit, and seamless compatibility with Square D OEM panelboards means fewer compatibility hassles and more predictable protection for your critical circuits.

Use cases and practical insights

From replacing aging breakers in existing panelboards to provisioning new branch circuits in small commercial spaces, this 30A, 2-pole unit is suited for branch circuit protection where a reliable, code-compliant disconnection is required. It’s an excellent match for panels designed to accept bolt-on molded case breakers and for scenarios where vibration or bus connection integrity could impact long-term performance.

When selecting a replacement or upgrade, pairing the ECB24030G3 with the corresponding OEM load centers ensures a straightforward fit, streamlined installation, and consistent electrical protection across your system.