GE TH4323 - 100A, 240V, 3-Pole, Fused Disconnect Switch

The GE TH4323 is a purpose-built fused disconnect switch engineered for reliable electrical isolation in demanding industrial and commercial environments. With a 100A rating and 240V three-phase capability, this switch delivers safe, decisive disconnection when you need it most—whether for routine maintenance, servicing, or emergency isolation. The robust NEMA 1 enclosure keeps your control circuitry protected indoors, providing dependable operation in everyday conditions.

Why the GE TH4323 stands out

• Three-pole design ensures simultaneous de-energization of all three conductors in a three-phase system, preventing partial power restoration and minimizing risk during maintenance.
• 100A fused protection combines overcurrent protection with immediate, clean isolation, helping safeguard downstream equipment and personnel.
• Fused disconnect means you’re not just breaking the circuit; you’re actively interrupting fault current, reducing arcing and wear over time.
• Indoor-ready NEMA 1 enclosure provides reliable dust and incidental contact protection in control rooms, equipment bays, or similar environments.
• Lockout/Tagout friendly design supports safe maintenance practices, enabling easy attachment of padlocks and warning tags to prevent accidental re-energization.
• Durable, long-term reliability built to withstand frequent operation and electrical cycling, helping to minimize maintenance disruptions.

What problems it solves

• Eliminates the risk of accidental re-energization during service with compliant lockout/tagout capabilities.
• Provides a clear, robust isolation point for three-phase equipment, reducing downtime when performing maintenance or repairs.
• Delivers dependable disconnection under load, helping protect personnel and connected machinery during fault conditions.

Ideal use scenarios

• Motors, conveyors, pumps, and other three-phase equipment in manufacturing or processing facilities.
• Control panels and machine enclosures where rapid, verified isolation is required.
• HVAC systems and industrial processing lines that demand reliable, code-compliant disconnection.

Installation and operation tips

• Mount in accessible locations within control rooms or equipment spaces to ensure quick reach during maintenance.
• Pair with the appropriate fuse type and ratings per your system requirements to maintain proper overcurrent protection.
• Use with standard lockout/tagout procedures to support compliance and worker safety.
• Schedule regular inspection of connections and fuses to confirm integrity and continuous performance.

Durability you can rely on

Built for steady performance in real-world environments, the GE TH4323 emphasizes durable materials and solid mechanical design to endure frequent operation and environmental exposure typical of industrial settings. Its fuse-based protection, combined with a rugged enclosure, translates to predictable behavior during switching events and long service life.

How this compares to alternatives

In scenarios where reliable, clearly isolated power breaks are essential, a fused disconnect like the TH4323 offers definitive current interruption and overload protection in a single unit. Compared with non-fused disconnects, this model adds an extra layer of safety by actively interrupting fault current, which can reduce wear on downstream components and improve maintenance workflows. The three-pole configuration further guarantees synchronized disconnection across all phases, eliminating partial energization risks common with less capable solutions.

Customer takeaway

If your operation requires a dependable, code-aligned solution for safe electrical isolation of three-phase equipment, the GE TH4323 delivers clear isolation, reliable overload protection, and easy integration with lockout/tagout programs—all in a compact, indoor-ready enclosure. It’s a practical choice for facilities prioritizing safety, reliability, and straightforward maintenance in everyday industrial workloads.