GE THQL2120ST1 20A 2P 240V Circuit Breaker, Shunt Trip | AmpState

The GE THQL2120ST1 is a purpose-built, two-pole 20A circuit breaker with a shunt trip, designed to deliver dependable overcurrent protection in panelboards, load centers, and electrical distribution setups. Built for everyday electrical work and retrofit projects, this part stays consistent for maintenance planning and lifecycle management, ensuring your spare and replacement parts align with existing installations.

Advanced safety and remote shut-off capability

• Shunt Trip provides remote or automated tripping capability, enhancing safety and control for industrial, commercial, and critical system applications.
• Two-pole configuration at 240V supports common multi-wire branch circuits and standard distribution layouts.
• 20 A rating is ideal for protecting typical control circuits, lighting, and general distribution lines without unnecessary nuisance tripping.

Why this GE breaker stands out

• Retrofit-ready and part-number stable: The THQL2120ST1 is specifically noted for retrofit work and maintenance planning, helping you maintain consistent part numbers across ongoing builds or upgrades.
• Panelboard and load center compatibility: Engineered for seamless integration in GE-based electrical ecosystems, ensuring reliable protection within standard distribution panels.
• Durable, field-proven design: Built to withstand everyday electrical work and the demands of ongoing service life in commercial and light industrial environments.

Specifications at a glance

• Product Type: Circuit Breaker
• Manufacturer: GE
• Part Number: THQL2120ST1
• Amperage: 20 A
• Poles: 2
• Voltage: 240 V
• Shunt Trip: Included

Ideal use cases

• Retrofit projects where maintaining the same part number simplifies ordering and installation across multiple panels.
• Maintenance planning for panelboards, load centers, and electrical distribution networks that require reliable, remote-controllable overcurrent protection.
• New or upgraded installations within commercial facilities that use GE THQL-type breakers and need consistent, dependable 240V protection.

Support and compatibility

This GE THQL2120ST1 circuit breaker is available from AmpState. If you’re unsure about fit or compatibility, you can reach out for expert assistance in confirming the correct part for your panel, ensuring a safe and compliant installation. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.