Eaton QBHGFEP2020 Ground Fault Equipment Protection Circuit Breaker

Eaton QBHGFEP2020 Ground Fault Equipment Protection Circuit Breaker

I. Model Explanation
QBH: QuickLag High Short-Circuit Breaking Series (22kAIC, standard QB only 10kAIC)
GFEP: Ground Fault Equipment Protection Device (Class A, UL943 standard)
2020: 2 poles, rated current 20A
Brand: Eaton / Cutler-Hammer Caterpillar Hammer

Core Electrical Parameters
Poles / Current / Voltage
2 poles, 20A, single-phase 120/240VAC North American distribution standard
Short-circuit breaking capacity AIC
22kA @120V (Specialized for high short-circuit capacity cabinets, different from ordinary QBGFEP 10kA)
Leakage tripping sensitivity
Equipment protection type: 30mA action threshold; meets UL 943 Class A grounding fault standard
Trip unit
Thermal magnetic protection: Long-delay overload + Instantaneous short-circuit protection
Installation method
Bolt-on bolt-fixed busbar (non-pluggable, shock-resistant, preferred for industrial control cabinets)
Connection specifications
Incoming and outgoing lines compatible with 8–14AWG copper/aluminum cables; comes with a white neutral detection long lead (ground fault sampling) Certification
UL489 (Circuit Breaker Standard), UL943 (Electrical Leakage Protection), CSA Certification

Key Structures and Functions
Specialized Equipment Leakage Protection (GFEP ≠ Ordinary Personal GFCI)
30mA leakage threshold, for equipment insulation leakage protection, preventing motor, frequency converter, and industrial control cabinet shells from leaking electricity and burning the equipment, not focusing on personal electric shock protection; personal protection selects 5mA GFCI model.
High short-circuit tolerance QBH architecture
Compared to ordinary QBGFEP (10kA), the 22kA breaking capacity is suitable for industrial distribution rooms with near-zone transformers and large short-circuit currents.
Zero-sequence sampling leads
The body leads out a white multi-strand long wire, which needs to pass through the phase wire + neutral wire circuit to achieve residual current detection; the yellow TEST button on the panel for regular leakage function calibration.
Integrated thermal magnet + leakage module
Overload, short circuit, and grounding leakage protection combined, no need to connect an external leakage transformer.

Distinction of the Same Series Models (Not Directly Interchangeable) Table
Model Interrupting Capacity Leakage Sensitivity Applicable Scenarios
QBHGFEP2020 22kAIC 30mA Equipment Protection Industrial, High Short-Circuit Current Distribution Cabinet (This Model)
QBGFEP2020 10kAIC 30mA Equipment Protection Ordinary Commercial Lighting Cabinet
QBHGFCI2020 22kAIC 5mA Personal Protection Plug-in Circuit Personal Electrical Shock Protection

Typical Application Scenarios
Insulation Leakage Protection for Branch Circuits of Industrial Frequency Converters, Water Pump Motors, Air Compressors
Distribution Protection for Auxiliary Cabinets of Generator Sets and Low-Voltage Control Circuits of Excitation Systems
POW-R-EZ Bolt-Type Distribution Panel for North American Standard Industrial Buildings
Ground Fault Protection for Branch Circuits of Data Centers and Medical Equipment Support Equipment