GE THQP145 - 45 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the GE THQP145 — a 45A, 120V, 1-pole plug-in molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to snap into GE-compatible OEM panels, it delivers fast installation without sacrificing safety or performance.

Why this GE breaker stands out

• Fast plug-in connection for rapid installation and effortless replacement, minimizing downtime during panel maintenance or upgrades.
• Thermal-magnetic trip unit combines thermal overload protection with instantaneous magnetic trip for reliable, repeatable performance under varying electrical loads.
• 1-pole, 45A at 120V provides targeted protection for individual branch circuits, helping prevent overheating and potential fire risk in wiring and devices.
• Panelboard compatibility designed to work with matching OEM GE load centers and panelboards, ensuring a cohesive, safe protection system.
• Versatile applicability suitable for residential, commercial, and light industrial environments where dependable circuit protection is essential.

How it protects your electrical system

When a circuit experiences overloads, the thermal element gradually responds to heat generated by excess current, interrupting the circuit to prevent damage. In the event of a short circuit, the magnetic element detects the sudden surge and trips immediately, halting fault current flow and reducing the risk of wiring insulation damage or fire.

Ideal use scenarios

• Replacing a failed or worn-out breaker in GE panelboards to restore reliable circuit protection.
• Adding or upgrading individual branch circuits in residential installations, such as dedicated circuits for appliances or heavy-load outlets.
• Light commercial setups where compact, plug-in protection is needed for specific circuits without rewiring entire panels.

Technical specifications at a glance

• Manufacturer: GE
• Part Number: THQP145
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 120V
• Number of Poles: 1
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection
• Compatibility: Matching GE OEM load centers and panelboards

Engineered for reliability and ease of maintenance, the GE THQP145 delivers precise protection where it matters most — at the point of use. Whether you’re upgrading an aging panel, wiring a new layout, or restoring a critical circuit, this 1-pole 45A plug-in breaker offers straightforward installation, consistent trip performance, and peace of mind for residential, commercial, and light industrial electrical systems.