H325-TB - 400A, 240V, Fused Disconnect Switch

When safety and reliability matter for power distribution, the H325-TB Fused Disconnect Switch delivers dependable electrical isolation with built-in protection. Engineered for demanding industrial and commercial environments, this switch combines immediate fault interruption with secure, lockout/tagout-capable operation to keep maintenance crews safe and downtime minimized.

Why the H325-TB stands out

• High-capacity protection: 400A amperage rating provides robust disconnect capability for large loads and motor circuits, reducing the need for multiple devices in your switchgear.
• Precise voltage handling: 240V operation designed to integrate cleanly with standard low-voltage distribution schemes while delivering reliable isolation under load.
• Integrated fused protection: The fused design adds primary overcurrent protection, helping to shield downstream equipment from faults and helping circuits trip promptly when issues arise.
• Safe maintenance and LO/TO compliance: Built to support proper lockout/tagout procedures, ensuring personnel can de-energize and service equipment without risk.
• Durable, long-term performance: Constructed for longevity in harsh environments, resisting wear from frequent switching and providing stable electrical isolation over time.

Ideal use cases

• Control panels and motor control centers where immediate, reliable isolation is critical during servicing.
• Main distribution points in industrial facilities, warehouses, and commercial plants that require a single, robust disconnect with protection.
• Emergency isolation setups where equipment must be promptly and safely de-energized under fault or maintenance scenarios.

How it benefits your operation

• Minimized downtime: Quick, dependable disconnection under load reduces the risk of extended outages during maintenance or fault events.
• Enhanced safety: Lockout/tagout compatibility and clear isolation paths help protect personnel during servicing.
• Simplified protection planning: With built-in fuse protection, you can design a streamlined protection scheme without extra components.
• Consistent performance: Industrial-grade construction withstands environmental stressors, delivering reliable operation across shifts and seasons.

Specifications at a glance

• Amperage rating: 400A
• Voltage rating: 240V
• Product type: Fused Disconnect Switch
• Model: H325-TB

Practical guidance for best results

• Pair the H325-TB with appropriately rated fuses and follow applicable electrical codes during installation.
• Ensure lockout/tagout devices and procedures align with your facility’s safety program to maximize protection during maintenance.
• Use in environments that demand reliable under-load isolation to protect downstream equipment and personnel alike.