Square D | HDL36110SA | Circuit Breaker | 110A | 3-Pole | 600V

Meet the Square D HDL36110SA circuit breaker — a purpose-built, three-pole protector designed for demanding electrical installations. With a 110A rating and a 600V maximum, this breaker is tailored for maintenance, retrofit, and replacement projects where precise compatibility matters and dependable overcurrent protection is essential.

Key specs at a glance

• Amperage: 110A
• Poles: 3-Pole (three-phase protection)
• Voltage rating: 600V
• Part number: HDL36110SA
• Applications: maintenance, retrofit, and replacement in compatible Square D systems

Why this model stands out

• Precise compatibility for three-phase systems: The 3-pole configuration is ideal for protecting three-phase circuits common in commercial and light industrial environments.
• High-voltage readiness: 600V rating expands where this breaker can safely operate, supporting a broader range of equipment and feeders.
• Reliable, brand-backed protection: As a Square D model, it’s designed to integrate smoothly with Square D panels and assemblies, helping maintain electrical system integrity.
• Clear reference for ordering: The HDL36110SA part number is the best reference for compatibility, reducing the guesswork when sourcing replacements or upgrades.

Ideal uses and practical scenarios

This breaker is well-suited for service panels, distribution boards, and retrofit projects where a three-phase, 600V protection device is required. It’s a dependable choice when updating aging infrastructure, expanding an existing system to accommodate new loads, or replacing a failed unit with an exact-match component to minimize downtime.

How to ensure a correct fit

Before ordering, verify that the HDL36110SA matches your panel’s specifications. The provided part number is the most reliable reference for compatibility, and confirming fit and ratings helps ensure uninterrupted protection and compliant operation.

Maintenance tips

• Keep a record of the part number HDL36110SA for future replacements or retrofits to maintain a consistent protection strategy.
• Follow proper shutdown procedures and adhere to local electrical codes when replacing or upgrading circuit breakers.
• Store spares in original packaging or a labeled container to preserve performance and avoid mix-ups with other amperage or pole configurations.