This ABB / GE THHQB 30 Amp, 2-pole molded case circuit breaker is designed for commercial electrical distribution systems requiring Class A ground-fault protection. It provides overload, short-circuit, and ground-fault protection (5 mA sensitivity) in a single device. Built for use in GE A-Series and ReliaGear RQ panelboards, it installs using a secure bolt-on mounting system for reliable circuit connection in critical applications. The breaker is engineered to comply with NEC requirements for personnel protection in wet and damp locations and includes self-test functionality for enhanced safety assurance.
Voltage and Rating
- Current Rating: 30 Amps
- Voltage Rating: 120/240 VAC
- Number of Poles: 2
- System Type: Single-phase
- Interrupting Rating: 22 kA @ 120/240 VAC
- Device Type: GFCI Molded Case Circuit Breaker
Key Specifications
- Series: THHQB (Q-Line Family)
- Trip Technology: Thermal Magnetic with Ground Fault Protection
- Protection Functions: Long-Time, Instantaneous, Ground Fault (LIG)
- Ground Fault Sensitivity: Class A (5 mA)
- Mounting Style: Bolt-On
- Application: Commercial and industrial panelboards
- Brand: ABB / GE
Technical Specifications
- Terminal Type: Box lugs
- Wire Range:
- Copper: 14–8 AWG
- Aluminum: 12–8 AWG
- Trip Characteristics: Fixed thermal and fixed magnetic
- Safety Features: Self-test, trip-free mechanism, visual trip indication
- Operation: Quick-make / Quick-break with common trip
- Accessories: Shunt trip, auxiliary switch, padlock attachment options
Standards and Approvals
- UL 489
- UL 943 (GFCI standard)
- CSA C22.2 No. 5
- CSA Certified
- HACR Rated
- NEC compliant for personnel protection in wet/damp locations
Product Data
- Manufacturer: ABB / General Electric
- Series: THHQB / Q-Line
- Product Type: GFCI Molded Case Circuit Breaker
- Mounting: Bolt-On
- Application: Panelboard circuit protection
Applications
- Commercial branch circuit protection
- Wet and damp location installations
- Industrial and institutional panelboards
- Personnel ground-fault protection circuits
- A-Series and ReliaGear RQ panelboard systems
- Type Circuit Breakers
- Vendor GE
- Brand GE
Returns are easy
You may return items within 30 days of delivery for a refund.
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