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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
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EHB34030
Square D EHB34030 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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2. Dedicated Account Manager
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3. Your quote
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Square D EHB34030 is a bolt-on E-Frame circuit breaker designed to provide dependable overload and short-circuit protection in compatible NEHB panelboards. This 3-pole unit has a 30 A current rating and a 480Y/277 VAC voltage rating, making it well suited to commercial and industrial power distribution applications where consistent branch circuit protection is required. Its compact design requires three spaces and features VISI-TRIP indication for quick visual identification after a trip event. With a short-circuit current rating of 14 kA and compatibility with aluminium and copper conductors within the stated wire size range, the EHB34030 offers a practical solution for panelboard installations that demand robust performance and straightforward integration.
| Specification | Description |
|---|---|
| Part number | EHB34030 |
| Manufacturer | Square D |
| Product type | Moulded case circuit breaker |
| Breaker type | Standard breaker |
| Series / type code | EHB |
| Frame type | E-Frame |
| Current rating | 30 A |
| Number of poles | 3 |
| Voltage rating | 480Y/277 VAC |
| Mounting type | Bolt-on |
| Short-circuit current rating | 14 kA |
| Trip indication | VISI-TRIP trip indication |
| Intended use | Provides overload and short-circuit protection |
| Compatible panelboards | Suitable for use with NEHB panelboards |
| Wire size | #12–8 AWG aluminium or #14–8 AWG copper |
| Space required | 3 spaces |
| Width | 3.00 in |
| Height | 3.50 in |
| Depth | 2.97 in |
| Certifications | UL Listed, CSA Certified |
What type of device is this?
This is a standard bolt-on circuit breaker designed to provide overload and short-circuit protection in compatible panelboard applications. The EHB34030 is built as a 3-pole unit for use on 480Y/277 VAC systems.
What is the current rating of this breaker?
It has an ampere rating of 30 A, making it suitable for applications that require a three-pole breaker at this current level, subject to the requirements of the installation.
How many poles does this breaker have?
This model is a 3-pole breaker. That configuration is typically used where three-phase circuit protection is required.
What voltage is it rated for?
The datasheet lists a voltage rating of 480Y/277 VAC. This should be matched carefully to the electrical system where the breaker will be installed.
What mounting style does it use?
This unit uses a bolt-on mounting type. That can be an important detail when checking fit with existing equipment and panelboard arrangements.
Which panelboards is it intended to be used with?
The product data indicates it is for use with NEHB panelboards. Before installation, it is important to confirm compatibility with the specific panelboard assembly in use.
What does VISI-TRIP trip indication mean?
VISI-TRIP is a trip indication feature that helps show when the breaker has tripped. This can make fault identification quicker during inspection of the panel.
What is the short-circuit current rating?
This breaker is listed with a short-circuit current rating of 14 kA. The available fault level in the installation should always be checked against the breaker rating and the wider assembly requirements.
What wire sizes can be used with this breaker?
The datasheet states wire size compatibility as #12-8 AWG aluminium or #14-8 AWG copper. The exact conductor selection should be matched to the installation method and applicable electrical requirements.
What are the physical dimensions of the breaker?
The listed dimensions are 3.50 inches high, 3.00 inches wide, and 2.97 inches deep. These measurements are useful when checking panel space and replacement fit.
How much panel space does it require?
This breaker requires 3 spaces. That is a useful specification when planning a replacement or checking whether there is sufficient room in the panelboard.
What frame type is this breaker?
It is an E-Frame breaker. Frame type is an important matching detail when comparing units for panel fit and application compatibility.
- Branch circuit protection in 480Y/277 VAC three-phase electrical distribution systems
- Overload and short-circuit protection for lighting and power circuits in commercial buildings
- Use in industrial panelboards where a bolt-on, three-pole breaker is required
- Protection of distribution feeds serving HVAC equipment, pumps and other facility services
- Integration into Schneider Electric / Square D NEHB panelboards for organised power distribution
- Electrical protection for manufacturing areas, plant utilities and process support systems
- Use in building services infrastructure such as maintenance panels and secondary distribution boards
- Suitable for applications where clear trip indication is useful for faster fault identification and reset procedures
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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All parts new or reconditioned are covered by EU Automation 12 month warranty
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
2 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
2 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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