Eaton / Cutler-Hammer NGS308038E Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer NGS308038E - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial and industrial power distribution, the NGS308038E is a three-pole, 800A molded case circuit breaker in the Eaton Series G NG-Frame. It seamlessly integrates into Eaton switchboards and panelboards, acting as a drop-in replacement for the ND308038. The standout feature is its Digitrip 310+ ALSI electronic trip unit, which includes an Arcflash Reduction Maintenance System (ARMS) to improve worker safety during maintenance. It provides 50 kAIC interrupting capacity at 480V.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 | ALSI |
| Trip Function | Arcflash Reduction, Long-Time, Short-Time, Instantaneous |
| 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
6 answersWhat does the ALSI trip function on the NGS308038E include?
The ALSI designation indicates the breaker is equipped with a Digitrip 310+ electronic trip unit featuring an Arcflash Reduction Maintenance System (ARMS), along with adjustable Long-Time, Short-Time, and Instantaneous trip functions. ARMS improves worker safety by reducing clearing time and lowering incident energy during maintenance.
Does the NGS308038E come with lugs installed?
No, Eaton NG-frame circuit breakers do not ship with lugs. This breaker features imperial tapped line and load conductors, requiring you to purchase and install the appropriate lugs separately based on your cable size and material.
What does the E at the end of the NGS308038E catalog number signify?
The E signifies that the breaker is equipped with imperial tapped line and load conductors. This means it requires standard imperial mounting hardware and lugs rather than metric components.
Can the NGS308038E replace older ND-frame breakers?
Yes, the NGS308038E is a Series G NG-frame breaker that serves as a direct drop-in replacement for the older Cutler-Hammer ND308038, fitting into the same panelboard and switchboard spaces.
What enclosures are compatible with this 800A NG-frame breaker?
This breaker is designed for use in Eaton Series G panelboards, switchboards, and motor control centers that accommodate NG-frame dimensions and bolt-on connections.
How does the Arcflash Reduction Maintenance System (ARMS) operate on this breaker?
When the ARMS maintenance mode is activated, the breaker bypasses its standard time delay settings to trip instantaneously upon detecting a fault. This drastically reduces the clearing time and the resulting arc flash incident energy, protecting personnel working downstream.
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