GE THQL1120 Q‑Line Single‑Pole Circuit Breaker

Overview

The THQL1120 is a compact, plug-in circuit breaker from GE’s Q‑Line (THQL) series, tailored for residential and commercial load centers. It offers reliable thermal-magnetic protection for 20 A circuits at 120/240 VAC, packed into a space-saving 1-inch, single-pole format.

Key Specifications

• Amperage: 20 A

• Voltage Rating: 120/240 VAC

• Interrupting Capacity (AIC): 10,000 AIC

• Mounting Type: Plug-in; 1 inch per pole frame (Q-Line/THQL)

• Trip Mechanism: Non-interchangeable thermal-magnetic with quick-make/quick-break action

• Terminal Type: Screw-clamp for copper/aluminum conductors

  • Copper: #14–#8 AWG

  • Aluminum: #12–#8 AWG

• Temperature Rating: 60–75 °C

• Dimensions: Approx. 2‑3/8" (L) × 1" (W) × 3‑9/32" (H)

• Certifications: UL Listed, HACR rated, GSA compliant

Features & Benefits

• Efficient Design
  Compact 1-inch width per pole saves space, allowing more breakers in a single panel.

• Reliable Trip Mechanism
  Quick-make/quick-break handle ensures fast and safe circuit interruption.

• Corrosion-Resistant Contacts
  Tin-plated copper contacts and cemented calibration screw offer long-term reliability and stability.

• Wide Compatibility
  Designed to work with GE load centers and compatible panels from several other manufacturers.

Typical Applications

• Residential Panels
  Ideal for lighting, outlets, and general-purpose branch circuits.

• Light Commercial
  Suitable for small commercial panels needing dependable circuit protection.

• HVAC Circuits
  HACR rating supports use in heating, air conditioning, and refrigeration systems.