GE THQL1145 - 45 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

GE THQL1145 — a 45A, 120V, 1-pole plug-in molded case circuit breaker from AmpState, engineered to protect your branch circuits with precision. Designed to slot directly into compatible GE panelboards and load centers, this breaker delivers dependable overcurrent and short-circuit protection for residential spaces, commercial environments, and light industrial setups.

What makes the THQL1145 different

• Fast plug-in connection enables rapid installation and easy replacement without extensive wiring work.
• Thermal-magnetic trip unit provides stable, repeatable protection that responds appropriately to both overloads and short circuits, minimizing nuisance trips.
• OEM compatibility designed to pair with matching GE panelboards and load centers for a cohesive, reliable protection system.
• Versatile for multiple applications ideal for 120V branch circuits in homes, small offices, shops, and light industrial equipment setups.

Key specifications at a glance

• Amperage rating: 45A
• Voltage rating: 120V
• Number of poles: 1
• Mounting style: Plug-in molded case
• Type: Thermal-magnetic molded case circuit breaker
• Part number: THQL1145

Use cases and practical scenarios

The GE THQL1145 is a solid choice when you need reliable protection for a dedicated 120V circuit in a GE-compatible panelboard. It’s well-suited for upgrading aging distribution boards, replacing failed units, or provisioning a new high-current branch that requires 45A protection for equipment in residential, commercial, or light industrial spaces.

Why it matters in your electrical system

With a thermal-magnetic trip curve, the THQL1145 reacts quickly to short circuits while accurately tracking sustained loads. This means fewer unintended trips and better protection for wiring insulation and connected devices. The plug-in design reduces downtime during maintenance or panel upgrades, getting you back to service faster.

Installation and compatibility notes

Engineered for use with GE’s THQL family, this 1-pole breaker fits compatible GE panelboards and load centers. Before replacing, verify the panel’s compatibility and ensure the circuit is correctly rated for a 120V, 45A branch. For best results, perform routine checks after installation and follow manufacturer guidelines for secure seating to ensure a solid connection.

Who this is for

Electricians, facilities managers, and homeowners who work with GE panelboards and load centers will appreciate the straightforward, dependable protection this breaker provides. It’s a practical choice for projects requiring fast serviceability and consistent protection across residential, commercial, and light industrial applications.