Eaton / Cutler-Hammer NGS308039E Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer NGS308039E - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for heavy-duty applications, the Eaton NGS308039E is a 3-pole, 800A electronic trip MCCB from the Series G lineup. It provides highly configurable overcurrent protection for commercial and industrial facilities. This NG-frame breaker installs into Eaton Series G panelboards and switchboards, serving as a direct replacement for legacy ND308039 breakers.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | NGS |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 85kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 320-800A |
|---|
| Frame Type | NG |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | Eaton Series G Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lugs, Padlock Attachment |
|---|---|
| Accessories | Imperial Tapped Terminals |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CE, CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, True RMS Sensing, Arcflash Reduction Maintenance System |
Product FAQs
7 answersAre terminal lugs included with the Eaton NGS308039E?
No, Eaton NG-frame circuit breakers do not ship with lugs. The NGS308039E features a stud/tapped pad connection, so you will need to source compatible multi-wire or standard lugs separately based on your specific conductor requirements.
What protection functions are included in the ALSIG trip unit of the NGS308039E?
The ALSIG designation means this Digitrip 310+ electronic trip unit provides Long-time, Short-time, Instantaneous, and Ground-fault protection, plus an Arcflash Reduction Maintenance System (ARMS) to improve personnel safety during maintenance.
How does the Arcflash Reduction Maintenance System (ARMS) benefit maintenance personnel?
When activated, the ARMS feature bypasses standard time delays to provide an accelerated instantaneous trip during a fault. This significantly reduces the incident arc flash energy, lowering the hazard risk category for workers performing maintenance on energized equipment.
Is the NGS308039E suitable for reverse feed applications?
Yes, Eaton Series G NG-frame molded case circuit breakers are rated for reverse feed use, allowing flexibility in how the line and load connections are wired.
Where is the NGS308039E typically installed?
This 800A unit-mount breaker is designed for integration into Eaton Series G panelboards, switchboards, and motor control centers.
Can the trip settings on the NGS308039E be adjusted in the field?
Yes, the electronic trip unit features adjustable dials for the Long-time, Short-time, Instantaneous, and Ground-fault parameters, allowing electricians to precisely coordinate the breaker with other protective devices in the system.
What is the amperage range of the NG-frame platform used by the NGS308039E?
The Eaton Series G NG-frame supports a continuous current range from 320A up to 1200A, providing a compact footprint for high-capacity distribution.
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.