Engineered to safeguard machinery, this 20A Q-Line breaker integrates 30mA ground fault equipment protection. It delivers reliable thermal-magnetic overcurrent defense. The module mounts into standard GE Q-Line and PowerMark Gold load centers. It includes a factory-installed pigtail neutral wire to facilitate accurate ground fault monitoring. By utilizing a 30mA threshold instead of the standard 5mA limit, it avoids nuisance tripping on industrial equipment. The device is HACR rated.
GE Q-Line Load Centers, PowerMark Gold Load Centers
Wire Gauge
14-8 AWG (Cu), 12-8 AWG (Al)
Max Wire
8 AWG
Min Wire
14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LIG
Trip Function
Long-Time, Instantaneous, Ground Fault
Trip Adjustability
Fixed
Standards and features
Special Classification
GFEP
Available Options
Padlock Attachment
Accessories
Pigtail Neutral
Standards
HACR, NEMA AB 1, SWD, UL 489
Approval
CSA, UL
Temp Rating
60C to 75C
Construction Features
HACR Rated, SWD Rated, Quick-Make/Quick-Break
Product FAQs
6 answers
Which electrical panels are compatible with the THQL1120GFEP breaker?
This breaker is designed for use in GE Q-Line and PowerMark Gold load centers. It features a standard 1-inch plug-in mounting design.
What is the ground fault trip threshold for the THQL1120GFEP?
This breaker features a 30mA ground fault equipment protection (GFEP) trip threshold. It is designed to protect machinery and equipment from damage, unlike Class A GFCI breakers which trip at 5mA for personnel protection.
Is the THQL1120GFEP interchangeable with the THQL1120GF?
No. The THQL1120GFEP provides 30mA equipment protection, while the THQL1120GF is a Class A GFCI breaker that trips at 5mA for personnel safety. They cannot be swapped if local codes require Class A personnel protection.
How is the neutral connection made on the THQL1120GFEP?
This breaker includes a factory-installed pigtail neutral wire. The pigtail must be connected directly to the neutral bus bar in the panel to ensure accurate ground fault monitoring.
What applications typically require a 30mA GFEP breaker like the THQL1120GFEP?
30mA equipment protection breakers are commonly used for heat tracing cables, snow melting equipment, and dedicated industrial machinery where a standard 5mA GFCI might experience nuisance tripping.
Why is the THQL1120GFEP listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions. Depending on the manufacturing date, this breaker may feature either GE or ABB branding. The form, fit, and function remain identical regardless of the label.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 90 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 90 reviews
5
Rated out of 5 stars
88
Total 5 star reviews: 88
4
Rated out of 5 stars
1
Total 4 star reviews: 1
3
Rated out of 5 stars
1
Total 3 star reviews: 1
2
Rated out of 5 stars
0
Total 2 star reviews: 0
1
Rated out of 5 stars
0
Total 1 star reviews: 0
Reviews Summary
Generated by AI from 78 most recent customer reviews
Last updated 8/5/25
Customers say these circuit breakers arrive quickly and fit their electrical panels perfectly. Many reviews mention competitive pricing compared to local suppliers. Frequent comments address the secure packaging and prompt delivery. Reviews highlight the exact match to specifications and ease of installation. The selection receives particular praise, especially for hard-to-find models.