Square D EHB34100-1082 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Quantity
Square D EHB34100-1082 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for advanced control, the Square D EHB34100-1082 is a 3-pole, 100A molded case circuit breaker. It features a factory-installed shunt trip accessory, allowing users to remotely open the circuit for safety or automation. This E-Frame breaker utilizes a bolt-on mounting style specifically designed for legacy Square D NEHB panelboards. Delivering 14kAIC at 480Y/277VAC, this HACR-rated unit provides robust thermal-magnetic protection and includes a visual trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | EHB34100-1082 |
| Series | EHB |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | EHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 14 AWG-2/0 AWG (Cu), 12 AWG-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator |
Product FAQs
7 answersWhich panelboards are compatible with the EHB34100-1082 circuit breaker?
This E-Frame breaker is designed specifically for use in legacy Square D NEHB panelboards. It will not fit in modern NF or NQ series panels.
What does the "-1082" suffix mean on this Square D EHB breaker?
The "-1082" catalog number suffix indicates the inclusion of a factory-installed shunt trip accessory. This allows the breaker to be tripped remotely using a 120V to 277V AC control signal, which is commonly used for emergency shutdown or automation systems.
What type of protection does the LI trip function provide on this breaker?
The LI designation stands for Long-Time and Instantaneous trip functions. The thermal element (Long-Time) protects against sustained overloads, while the magnetic element (Instantaneous) provides immediate tripping during short-circuit faults.
What are the acceptable wire gauges for the terminals on the EHB34100-1082?
The factory lugs are rated to accept 14 AWG to 2/0 AWG copper (Cu) conductors, or 12 AWG to 2/0 AWG aluminum (Al) conductors.
How is this breaker secured inside the panelboard?
The EHB34100-1082 features a bolt-on mounting style. It must be mechanically bolted directly to the busbar of a compatible NEHB panelboard, ensuring a secure connection that resists vibration and thermal expansion.
How do I wire the factory-installed shunt trip on the EHB34100-1082?
The shunt trip accessory comes with factory-routed lead wires that exit the breaker housing. These leads must be connected to an external control circuit providing the appropriate 120V to 277V AC voltage to actuate the remote trip mechanism.
Can I adjust the trip settings on the EHB34100-1082?
No, this breaker features fixed thermal and fixed magnetic trip settings. The trip curve cannot be adjusted in the field.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
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 4.8 out of 5 based on 19 reviews.
- TSThomas S.Verified BuyerReviewingSquare D EHB24060 - 60A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/28/26President NGE
The quality is excellent, but you need to double check when you order that the corrected one gets delivered
- MDMitchell D.Verified BuyerReviewingSquare D EHB14020HID - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/4/26Hard to find
Super breakers has just what I was looking for when no one else did!!
- MSMike S.Verified BuyerReviewingSquare D EHB34060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/21/25Fast reliable service, reasonable prices
I recently ordered the incorrect breakers for a job, but I contacted Drew at SuperBreakers and he got me the correct breakers shipped out that day, which I received the next day. He sent me a label to send the wrong breakers back, and I was quickly refunded a restocking fee that I incurred for my mistake. I was able to get the breakers installed, and the power running to meet the deadline. Not to mention, the price was better than I found elsewhere. Thanks Drew!
I would definitely recommend this company if you need fast, reliable service for your electrical product needs. And I'm sure I will use them again.
Thank you SuperBreakers! Nice job Drew!
- DTDavid T.ReviewingSquare D EHB14020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/12/23Everything worked out perfect thanks
Everything worked out perfect thanks again
- GCGULF C.ReviewingSquare D EHB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/5/23Perfect condition
This breaker arrived as advert and timely. Perfect condition. Good working condition