General Electrics THQD32225ST1 - 225 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The General Electric THQD32225ST1 is a 225 A, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for steady performance, it sits securely in place with a bolt-on mounting that creates a rigid, vibration-resistant bus connection, helping maintain consistent contact and protection even in environments with vibration or movement.

Whether you’re outfitting a residential panel, a commercial distribution box, or light industrial equipment, this breaker fits the bill. Its thermal-magnetic trip unit provides stable, repeatable protection across varying loads and fault conditions, helping prevent nuisance trips while ensuring fast response when a fault occurs.

Why this THQD32225ST1 stands out

• Secure bolt-on mounting ensures a rigid, vibration-resistant bus connection for reliable long-term performance.
• Thermal-magnetic trip unit delivers predictable protection, balancing fast short-circuit response with stability during normal operation.
• 3-pole design is ideal for three-phase circuits common in commercial and light industrial applications.
• 225 A rating accommodates high-current branch circuits while providing dependable protection for critical loads.
• OEM-compatible designed to work with matching General Electric load centers and panelboards for a seamless, integrated fit.
• Versatile applications suitable for residential, commercial, and light industrial environments requiring robust overcurrent and short-circuit protection.

Applications and practical use

• Protect three-phase feeders and distribution circuits in panelboards and load centers.
• Replace aging or failed breakers in GE-based electrical systems with a matching bolt-on MCCB for reliable, long-term protection.
• Ideal for panel upgrades where higher current capacity and secure mounting are priorities.

Specifications at a glance

• Manufacturer: General Electric
• Part number: THQD32225ST1
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 225 A
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

In practice, this THQD32225ST1 delivers targeted, reliable protection for panels and load centers where space, mounting stability, and dependable trip performance matter most. If you’re upgrading or maintaining GE-based electrical installations, this 225 A, 3-pole bolt-on breaker offers a precise fit, robust operation, and clear protection boundaries for safer, more predictable electrical systems.