The best 30 amp breaker for an EV charger guarantees safe, efficient Level 2 EV charging, providing enough power for faster charging while prioritizing electrical safety.
While 50-amp EV charger circuit breakers are standard for Level 2 EV chargers, some electric vehicle branch circuits call for a 30-amp solution. This can be due to Level 2 chargers designed for this amperage or existing wiring or limiting EV charging panel capacity that might necessitate a 30-amp setup.
The diagram below shows the installation of popular 30-amp electric car chargers such as Grizzl-E Classic Level 2 240V charger, Hardwired Home Flex Level 2 EV Charger, and 30-amp Tesla Charger (Tesla Wall Connector) specifically designed to work on a 30-amp circuit.
Using a 30-amp breaker delivers slower charging speeds compared to a 50-amp setup. This might be a compromise if faster charging isn’t crucial. Choosing the correct breaker size ensures safe EV charging by preventing circuit overload. When your Level 2 EV charger, EV charger electrical panel, and electric vehicle branch circuit wiring are limited to 30 amps, a 30-amp breaker is the optimal choice.
Choosing a 30-amp breaker for your EV charger isn’t a one-size-fits-all situation. Just like other electrical components, 30-amp breakers come in various options from different brands, each suited for specific uses.
This guide will help you navigate this selection process. We’ll highlight the top brands and explain ideal applications for each. Most importantly, you’ll learn why you might need one, and what size wire for 30-amp breakers.
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Best 30 Amp Breaker for an EV Charger
When shopping for the best 30 amp breaker for an EV charger, you will either need to choose between a 30 amp single pole EV charger circuit breaker or a 30 amp double pole EV charger circuit breaker, you will also need to ensure compatibility with your electrical panel, and also consider reputable brands known for reliability and durability.
Looking for the perfect 30-amp breaker for your EV charger installation? We’ll break down common circuit breaker brands alongside their advantages in electric vehicle branch circuit panels and configurations:
Square D 30 Amp Breaker for an EV Charger
Square D electrical components offer exceptional quality when it comes to EV charger installations if your electrical panel is compatible with the Square D 30 amp breaker, we recommend Square D (Homeline) 30A for single panel EV charger installation and Sq D by Schneider (QO GFCI) 30A for double pole EV charger installation.
As certified EV charger installers, we love working with Square D products in EV charger installations, as they are best when you have tight deadlines and budget to complete an EV charger installation, due to their plug-on configuration installation time is reduced and costs are also reduced.
Siemens 30 Amp Breaker for an EV Charger
Siemens circuit breakers are cost-effective, and user friendly, if your electrical panel is compatible with Siemens circuit breakers we recommend Siemens Q230 30A for double pole Level 2 EV charger installations.
We recommend the installation of Siemens circuit breakers on Siemens EV charger panels, the combinations give your EV charger installation an intuitive design, convenient bar access, and durable copper bus bars. Backed-out terminal screws simplify installation, and converting to sub-panels or neutral bars is notably easier compared to competing models. Moreover, Siemens circuit breakers offer cost-effective solutions without compromising EV charging circuit functionality.
GE 30 Amp Breaker for an EV Charger
For Level 2 EV charger installation compatible with General Electric (GE) 30-amp circuit breakers, we recommend the GE THQL1130 30A EV charger circuit breaker for single-pole Level 2 EV charger installations, or the GE THQL2130GFTP 30A circuit breaker for double-pole installations.
When installing the above GE circuit breakers in a GE electrical panel due to compatibility issues, we found that they offer quick and easy EV charger installation, thanks to the panel’s lockouts for electric vehicle branch circuits wiring and cables for installation of the EV charger circuit breaker.
Cutler Hammer 30 Amp Breaker for an EV Charger
For homeowners shopping for a Cutler Hammer 30 amps EV charger circuit breaker compatible with their electrical panel, we recommend Cutler Hammer CHF130 (30A) for single pole installations or Cutler Hammer CH230 (30A) for double pole Level 2 EV charger installations.
Cutler Hammer EV charger circuit breakers are one of the best when it comes to solving EV charger circuit breaker tripping issues, especially for a homeowner who doesn’t know which breaker powers which appliances, thanks to their special feature (called “trip to off.”) that detects which circuit breaker been tripped.
Types of Best 30 Amp Breaker for an EV Charger
We have classified the above circuit breakers based on 30 amps single pole EV charger installations, and 30 amps double pole EV charger installations. When shopping for a 30 amps Level 2 EV charger circuit breaker you will need to choose between single-pole or double-pole options, the difference lies in the size, wiring, and electric vehicle branch circuit they support.
This diagram below compares the wiring configurations for 30-amp single-pole and double-pole breakers.
30A EV Charger Circuit Breaker (Single-Pole)
Level 2 EV charging with a 30-amp single pole circuit breaker is all about the single, slim switch on your electric vehicle branch circuit electrical panel. This breaker handles one “hot” wire and a neutral one, perfect for delivering 240-volt power to your single pole Level 2 EV charger installation.
30A EV Charger Circuit Breaker (Double-Pole)
30-amp double-pole EV charger circuit breaker takes up two slots in your panel and boasts two distinct switches controlling two “hot” wires and a neutral wire.
Frequently Asked Questions.
Can I Charge My EV on a 30-Amp Circuit?
How Fast Does a 30-Amp Level 2 Charger Work?
What Gauge Wire for a 30-Amp EV Charger?
How Does the 80% Rule Apply to a 30 Amp Breaker Used for EV Chargers?
What Considerations Should Be Made When Choosing a 30 Amp Breaker for an EV Charger?
Can a 30 Amp Breaker Exceed 24 Amps in Certain Situations?
Related Posts
- How to Wire a Main Circuit Breaker Panel for EV Charging
- How to Wire an EV Charger SubPanel
- EV Charger Circuit Breaker Keeps Tripping: Causes, Troubleshooting and Solutions
About the Author: James Ndungu
James Ndungu, founder and editor-in-chief of Electric Vehicle Geek, brings over five years of hands-on experience in Electric Vehicle Supply Equipment (EVSE) selection, permitting, and installation. He specializes in assisting businesses and homeowners in the United States with a seamless transition to electric vehicles.
As a certified EV charger installer and holder of advanced certifications, including the EVITP (Electric Vehicle Infrastructure Training Program), Diploma in Electric Vehicle Technology, and Diploma in Engineering Fundamentals of Electric Vehicles, I provide expert guidance and in-depth reviews on the latest EV charging equipment.
Last update on 2024-12-13 / Affiliate links / Images from Amazon Product Advertising API
