Square D MHL3660033DC1625 - 600A, 3-Pole, Disconnect Switch

The Square D MHL3660033DC1625 600A, 3-Pole Disconnect Switch is built for demanding industrial and commercial environments where safe electrical isolation is non-negotiable. Designed to integrate with lockout/tagout procedures, this disconnect switch provides reliable, controlled disconnection under load, giving maintenance teams the confidence to service equipment without compromising safety or uptime.

Why this disconnect switch stands out

• High-current capability: 600A rating supports heavy-duty electrical circuits, reducing the need for multiple devices in large installations.
• Three-pole configuration: Ideal for three-phase systems, simplifying wiring and ensuring balanced isolation across all conductors.
• Lockout/Tagout readiness: Designed to work seamlessly with standard LOTO practices, helping teams meet safety compliance during maintenance and service.
• Durable, long-term performance: Engineered for reliability in environments where frequent switching under load is routine, contributing to steady operation and reduced downtime.

Ideal uses and scenarios

Perfect for applications that require immediate and safe isolation of large electrical loads in industrial settings, such as power distribution cabinets, equipment service points, or critical line feeds in commercial facilities. This model supports routine maintenance, safety testing, and rapid shutdowns when emergencies or faults occur, all while preserving the integrity of adjacent circuits.

Key specifications

• Amperage rating: 600A
• Number of poles: 3-Pole
• Product type: Disconnect Switch
• Brand: Square D
• Model: MHL3660033DC1625

Practical guidance for use

When wiring and integrating this disconnect switch, ensure it aligns with your three-phase system needs and supports proper lockout/tagout procedures. Plan for straightforward maintenance access and sequence disconnects in alignment with your facility’s safety protocols. This device is a purpose-built solution for facilities prioritizing clear isolation points, robust performance under load, and long-term reliability in demanding electrical environments.

What you gain

• Clear, reliable isolation points that enhance maintenance safety
• Consistent disconnection performance even under heavy load
• A durable component designed for extended service life in tough environments
• Compatibility with standard lockout/tagout practices to simplify safety compliance