THQL1120A SINGLE‑POLE 20A CIRCUIT BREAKER

The THQL1120A is a durable single‑pole circuit breaker engineered to provide dependable protection against overload and short‑circuit conditions in residential and light commercial electrical systems. Designed as part of the Q‑Line family, this breaker features a plug‑in configuration that simplifies installation while ensuring a firm mechanical connection within compatible load centers. Its rugged thermoset housing maintains dimensional stability under heat stress, while the internal thermal‑magnetic trip system offers consistent responsiveness to abnormal current levels. Compact, sturdy, and built for long‑term operation, this model supports efficient panel layouts where space and reliability are essential.

DETAILS

• Model Number: THQL1120A
• Type: Q‑Line Plug‑In Circuit Breaker
• Package Contents: One single‑pole circuit breaker
• Number of Items Included: 1
• Poles: 1
• Amperage: 20 A
• Voltage Rating: 120/240 V
• Interrupt Rating: 10 kAIC
• Dimensions: 3.30 in L x 1.00 in W x 2.40 in H
• Material: Thermoset housing
• Mounting Type: Plug‑On
• Trip Type: Thermal magnetic
• Connection Type: Screw clamp terminals
• Operating Frequency: 50/60 Hz
• Pack Size: 1

KEY FEATURES

• Color: Black thermoset exterior
• Size: One‑inch module width
• Dimensions: 3.30 in L x 1.00 in W x 2.40 in H
• Materials: Heat‑resistant thermoset enclosure with metal internal components
• Series: Q‑Line series
• Warnings: Standard electrical hazard precautions apply; intended for qualified installation

APPLICATIONS

• Residential breaker panels requiring dependable 20 A protection
• Light commercial electrical distribution systems
• Installations where compact plug‑on breakers are preferred for efficient spacing
• Replacement or upgrade needs for compatible load centers using Q‑Line configurations