GE THQB21100ST1 100A 2P 240V Circuit Breaker, Bolt-On, Shunt Trip | AmpState

GE THQB21100ST1 is a 100A, 2-pole, 240V bolt-on circuit breaker with a built-in shunt trip, purpose-built for dependable protection in panelboards, load centers, and electrical distribution systems. Its bolt-on design simplifies installation in compatible enclosures, making it an ideal choice for upgrades and service work where a specific part number must remain consistent.

Why this breaker stands out

• Robust 100 A protection suitable for residential, commercial, and light industrial circuits that demand reliable overcurrent control.
• 2-pole, 240V operation for balanced protection of multi-wire branch circuits and essential equipment across phases.
• Bolt-On mounting enables quick, secure installation in compatible GE panelboards and distribution panels, reducing on-site labor time.
• Shunt Trip capability provides remote tripping control, enhancing safety during maintenance, emergency shutoffs, or integration with building automation systems.
• Retrofit-friendly and scalable designed to fit existing infrastructures while keeping the part number consistent for maintenance planning and stocking.

Ideal use cases

• Retrofit projects where you must preserve the original part number for warranty, documentation, or stocking reasons.
• Maintenance planning in commercial facilities with panelboards and load centers that require quick, dependable remote-trip capability.
• New installations in distributed electrical rooms that need a standard 2P, 240V protection device with clear amperage rating.
• Remote shutdown scenarios in facilities with centralized control systems, where the shunt-trip feature adds an extra layer of safety.

Compatibility and availability

This GE circuit breaker is manufactured for compatibility with panelboards and load centers that support bolt-on, 2-pole devices. AmpState carries the THQB21100ST1 and can assist in confirming fit and ensuring you’re pairing the right breaker with your enclosure. If you’re unsure about compatibility, send a message and we’ll help verify a precise match for your setup.

Key specifications at a glance

• Amperage: 100 A
• Poles: 2
• Voltage: 240V
• Mounting: Bolt-On
• Trip feature: Shunt Trip (remote tripping capability)
• Product type: Circuit Breaker
• Manufacturer: GE

Experienceful protection that aligns with precise retrofit needs and maintenance workflows. With the GE THQB21100ST1, you’ll get reliable circuit interruption, easy installation, and the confidence of a part number you can trust for future service and documentation.