ABB / GE THQL2140ST1 40 Amp 2 Pole Shunt Trip Circuit Breaker – THQL Q-Line – 120/240V AC

The ABB / GE THQL2140ST1 is a 40 Amp, 2-pole thermal-magnetic circuit breaker with an integrated shunt trip feature for remote tripping applications. Designed for GE Q-Line load centers and PowerMark Gold panelboards, this breaker provides standard overload and short-circuit protection along with the ability to be disconnected via an external control signal. It is commonly used in safety interlock systems and emergency shutdown circuits.

Voltage and Rating

• Current Rating: 40 Amps
• Voltage Rating: 120/240 VAC
• Number of Poles: 2
• Interrupting Rating: 10 kAIC @ 120/240 VAC
• Device Type: Shunt Trip Circuit Breaker

Key Specifications

• Series: THQL Q-Line
• Part Number: THQL2140ST1
• Manufacturer: ABB / General Electric
• Breaker Type: Thermal Magnetic with Shunt Trip
• Mounting Style: Plug-On
• Frame Type: THQL

Technical Specifications

• Protection Functions:
  • Overload protection
  • Short-circuit protection
• Trip Function Code: LI (Long-Time and Instantaneous)
• Shunt Trip Feature: Enables remote electrical tripping via control circuit
• Trip Adjustability: Fixed thermal and magnetic settings
• Construction Features:
  • Quick-make/quick-break mechanism
  • Common trip across both poles
  • Visual trip indication
  • Compact Q-Line plug-on design

Standards and Approvals

• UL 489 Listed
• CSA Certified

Product Data

• Catalog Number: THQL2140ST1
• UPC: 783164419085
• Series: THQL Q-Line
• Product Type: Shunt Trip Circuit Breaker

Applications

• Emergency shutdown systems
• Fire alarm interface circuits
• Industrial control systems
• HVAC equipment protection
• Commercial lighting and power distribution
• Remote disconnect applications
• GE Q-Line load centers and panelboards

Returns are easy

You may return items within 30 days of delivery for a refund.

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