GE THMR3100 - 100A, Disconnect Switch

Meet the GE THMR3100 100A Disconnect Switch — a purpose-built solution for safe electrical isolation in demanding industrial and commercial environments. When maintenance, servicing, or system changes are needed, this disconnect switch provides a trusted, dependable way to isolate circuits while keeping operators and equipment protected.

Designed with lockout/tagout in mind, the THMR3100 is engineered to support proper safety procedures and minimize risk during maintenance. Its robust construction ensures a reliable disconnection under load, helping facilities reduce downtime and enhance overall electrical safety for teams on the ground.

Key benefits

• 100A amperage rating delivers solid performance for mid-to-large electrical circuits in busy facilities.
• Lockout/tagout compatible design — engineered to support safe maintenance practices and controlled power failures.
• Reliable under load disconnect capability minimizes unexpected energization during service work.
• Durable, long-term durability built to withstand the rigors of commercial and industrial use, reducing replacement frequency and downtime.

Specifications at a glance

• Amperage Rating: 100A
• Product Type: Disconnect Switch
• Brand: GE
• Model: THMR3100

Ideal applications

This disconnect switch is well-suited for facilities that require safe isolation of electrical circuits as part of routine maintenance, equipment servicing, or system upgrades. It fits into industrial and commercial electrical rooms, service panels, and feeder configurations where dependable disconnection is essential to protect personnel and equipment during intervention.

Why choose the GE THMR3100

If you need a purpose-built disconnect switch that prioritizes safety, reliability, and durability in the face of challenging operating environments, the GE THMR3100 stands out. It combines a clear emphasis on safe isolation with the practical reliability expected from a GE device, making it a strong choice for teams that value consistent performance and peace of mind in daily operations.

Whether you’re upgrading an aging switch, equipping a new fault-tolerant panel, or standardizing safety devices across multiple sites, the GE THMR3100 100A disconnect switch delivers the essential functionality you need with the confidence you expect from a trusted industrial brand.