Choosing electrical distribution switchgear protection begins with one question: which component does your circuit actually need? A 20A bolt-on breaker, a 120V ground-fault protection device, a 150A three-phase molded-case breaker, and a specialized racking-motor cable all serve different jobs. The four products here span a listed-price range from $27.69 to $460, so the right match depends on voltage, pole count, and whether you need a complete breaker or a replacement sub-component.
Quick take
In this group, the Square D EHB14020 handles light single-pole branch protection. The Eaton QCGFEP1020 adds ground-fault protection for 120V equipment circuits. The GE THED134150 is the heavy-duty three-pole choice for 480V feeders. And the GE Magne Blast plug and cable is the specialized replacement part for elevating/racking motors in M-26/M-36 switchgear. Match the component to the task, then confirm the mounting style and condition before buying.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Square D EHB14020 20A 1-Pole 277V Bolt-On Breaker | USD 27.69 | |
| Eaton QCGFEP1020 Ground-Fault Equipment Protection Breaker | USD 175.00 | |
| GE Magne Blast Elevating Racking Motor Plug & Cable | USD 249.95 | |
| GE THED134150 150A 480V 3-Pole Molded Case Breaker | USD 460.00 |
Decision matrix
- Need feed-thru ground-fault equipment protection? Choose the Eaton QCGFEP1020.
- Need a bolt-on breaker for a 277V circuit? Choose the Square D EHB14020.
- Need a high-amp three-pole MCCB? Choose the GE THED134150.
- Need a Magne Blast racking-motor cable? Choose the GE Magne Blast plug and cable assembly.
Product notes
Square D EHB14020 Circuit Breaker, 20A, 1 Pole, 277V, Type EHB, Bolt-On
The Square D EHB14020 is a new, United States-made bolt-on breaker for 20A, 1-pole, 277V applications. This is the smallest-duty product in the group. It is meant for commercial and industrial interior circuits, so if your job is a conventional single-pole 277V branch, this is the direct fit. It also has thermal overload protection and a trip indicator, which is useful when you need to spot a tripped breaker quickly. The limitation is light capacity: it will not cover a 150A feeder or three-phase load. Pick it for straightforward bolt-on branch protection, not for ground-fault equipment protection.
Eaton QCGFEP1020 Ground Fault Equipment Protection Circuit Breaker
The QCGFEP1020 is a new Eaton/Cutler-Hammer breaker for equipment ground-fault protection on 120V circuits. It is a Quicklag feed-thru unit with 30mA sensitivity, line and load lug terminals, and a 10kA interrupting rating at 120V. If the priority is keeping a specific piece of equipment protected against ground faults, this breaker is built for that role. The limitation is that it is a specialized 1-pole device for 120V use, not a 277V or three-phase breaker. Use it in the feed-thru configuration for which it is described rather than as a general-purpose branch breaker.
General Electric GE Magne Blast Breaker Elevating Racking Motor Plug & Cable
The General Electric GE Magne Blast plug and cable is a Switchgear Safety replacement assembly for the elevating/racking motor in M-26 and M-36 metal-clad switchgear. It comes as a new part with a 24-inch cable, a four-pin flat blade plug, and a round locating pin, and it replaces GE part numbers 0149C9619G001 and 0149C9619G002. This is the one to choose when you are servicing a Magne Blast racking motor rather than adding a new circuit. The limitation is its narrow scope: it is a sub-component of the elevating motor and is not suited for standard breaker installation.
GE THED134150 150A 480V 3P Molded Case Circuit Breaker Used Tested
The GE THED134150 is a used-surplus, tested 150A, 480V, three-pole molded-case circuit breaker from the THED frame. It uses a thermal-magnetic trip system and bolt-on mounting, and it sits at the upper end of the price range in this group. Choose it when you need real capacity for industrial or commercial power distribution. The main limitation is the used condition: although the title says it was tested, it is not a new unit. If your requirement is a small single-pole breaker, this is far more capacity than you need.
Final recommendation by use case
- For a 277V single-pole bolt-on branch circuit: Square D EHB14020.
- For 120V equipment ground-fault protection: Eaton QCGFEP1020.
- For a 480V three-phase 150A feeder: GE THED134150.
- For a Magne Blast racking-motor cable repair: GE Magne Blast plug and cable.
No single product is best for every panel. The correct choice is the one that matches your voltage, poles, and function.
