Square D | HDM36040 | Circuit Breaker | 3-Pole | 600V | Bolt-On

Square D HDM36040 is a purpose-built 3-pole, 600V bolt-on circuit breaker designed for reliable protection in industrial and commercial electrical systems. Crafted to meet the needs of maintenance, retrofit, and replacement projects, this unit provides sturdy, field-ready performance when you need to restore or upgrade three-phase circuits.

Designed for scenarios where exact compatibility matters, the HDM36040 is identified by its part number, making it the most reliable reference during procurement and installation. When ordering, always confirm fit and ratings first—the part number is the quickest way to ensure you’re getting a direct match for your panel’s mounting footprint and service requirements.

Key features at a glance

• Pole configuration: 3-Pole for true three-phase protection
• Voltage rating: 600V operating voltage suitable for industrial distribution
• Mounting style: Bolt-On installation for secure, durable mounting
• Model reference: HDM36040—use this part number to verify cross-compatibility with your panel and replacement schedule
• Brand heritage: Square D, a trusted name in dependable overcurrent protection

Who benefits from this breaker

• Maintenance teams performing routine replacements to minimize downtime
• Retrofit projects upgrading legacy panels to modern three-phase protection
• Applications requiring a robust 600V bolt-on breaker to safeguard motors, pumps, and other heavy-load equipment

Why this part stands apart

• Direct-fit compatibility: Specifically referenced by HDM36040 to ensure a precise mounting footprint and electrical fit in compatible Square D panels
• Secure bolt-on mounting: Eliminates loose connections and reduces service time during installation or replacement
• Clear procurement path: Using the exact part number minimizes guesswork and helps align ordering with panel documentation

How to verify compatibility and replace with confidence

Before purchasing, cross-check that your panel requires a 3-pole, 600V bolt-on breaker in the HDM family and that the mounting and bus connection style match your system. The HDM36040 part number is your best reference for compatibility, ensuring you’re selecting the correct unit for maintenance, retrofit, or replacement needs.

Practical guidance for installation and use

• Power down the equipment and follow your organization’s safety procedures before replacing a breaker
• Confirm the panel’s mounting footprint and bus connection arrangement aligns with a bolt-on 3-pole breaker
• Keep the HDM36040 part number on hand in procurement logs and maintenance records to streamline future service calls
• Store replacement units in their original packaging until installation to preserve performance and ease of handling