Designed for 3-phase commercial applications, the Square D EDB36030 is a 30A miniature circuit breaker. It offers fixed long-time and instantaneous trip functions to maintain system safety. The breaker features a bolt-on mounting configuration tailored exclusively for Square D NF panelboards. Capable of interrupting 18 kAIC at 480Y/277V, this E-Frame unit meets UL 489 standards. It also includes the signature Visi-Trip visual indicator, making it simple to spot a tripped circuit in a panel.
Which panelboards accept the EDB36030 circuit breaker?
This breaker is designed specifically for Square D NF series panelboards. It features a bolt-on mounting design and will not fit in NQ, I-Line, or QO load centers.
What is the difference between EDB, EGB, and EJB circuit breakers?
EDB, EGB, and EJB are all E-Frame breakers designed for NF panelboards. They share the same physical dimensions and trip features but offer different maximum interrupting ratings. EDB provides 18kAIC at 480Y/277VAC, while EGB offers 35kAIC and EJB offers 65kAIC.
What wire sizes do the factory-installed lugs on the EDB36030 accept?
The standard lugs accept 14 to 6 AWG copper wire or 12 to 6 AWG aluminum wire. Always refer to the labeling on the breaker body for specific torque requirements during installation.
Is the EDB36030 rated for HVAC equipment?
Yes, this E-Frame breaker is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications. It is also HID rated for high-intensity discharge lighting circuits.
Can this breaker be used on 480V or 600V systems?
Yes. The EDB36030 is rated for 480Y/277VAC grounded Wye systems with an 18kAIC interrupting rating. It is also rated for 600Y/347VAC systems with a 14kAIC rating.
Can the trip settings be adjusted on this breaker?
No, the EDB36030 features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
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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.
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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 111 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 111 reviews
5
Rated out of 5 stars
109
Total 5 star reviews: 109
4
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2
Total 4 star reviews: 2
3
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0
Total 3 star reviews: 0
2
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Total 2 star reviews: 0
1
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Total 1 star reviews: 0
Reviews Summary
Generated by AI from 87 most recent customer reviews
Last updated 8/7/25
Customers say these circuit breakers arrive quickly and function as expected. Many reviews mention competitive pricing and reliable shipping. The ordering process receives praise for its simplicity, with users noting the website is easy to navigate. Frequent comments address product availability and proper packaging. While some note receiving older stock items, users consistently report the breakers work effectively.
Square D EDB34125 - 125A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/4/26
Fast and easy
Locating the product, checking out and delivery were top notch!
JD
John D.
Verified Buyer
Reviewing
Square D EDB14020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/16/26
Great place
My rep has been very responsive and helpful. He always gives me a good deal also
DH
Dave H.
Verified Buyer
Reviewing
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/6/26
Brfeaker
good service and quick ship
RP
Ronica P.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/30/26
Great Experience from Start to Finish
Great experience! My order arrived on time and everything was exactly as expected. The items were packaged securely, and everything arrived in perfect condition. I appreciate the care taken with packaging and the prompt delivery. I would definitely order from them again!
TB
Theresa B.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/17/26
Works as expected
Breaker worked as expected. Price was good and shipping and delivery were expedient. No complaints