Eaton / Cutler-Hammer NGH308033E Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH308033E - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of Eaton's Series G family, the NGH308033E is an 800-amp molded case circuit breaker designed for commercial and industrial applications. This bolt-on MCCB installs into Eaton Pow-R-Line 4 panelboards, switchboards, and motor control centers, and crosses to the newer PDG53M0800E2NN. Rated for 65 kAIC at 480VAC, this 80% rated breaker provides adjustable long-time and short-time (LS) trip functions. It also features true RMS sensing and zone selective interlocking for system coordination.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | NGH308033E |
| Series | NGH |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 400-800A |
|---|
| Terminal Type | Stud/Tapped Pad |
|---|---|
| For Use With | Eaton Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LS |
| Trip Function | Long-Time, Short-Time |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Handle Mechanism |
|---|---|
| Accessories | Lugs Not Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL |
| Temp Rating | -20C to 70C |
| Construction Features | HACR Rated, Reverse Feed, True RMS Sensing, Visual Trip Indicator, Zone Selective Interlocking, 80% Rated |
Product FAQs
7 answersWhat is the modern replacement for the Eaton NGH308033E?
The NGH308033E is part of the legacy Series G family. Eaton's direct modern replacement is the Power Defense Frame 5 series, specifically catalog number PDG53M0800E2NN, which offers the same 800A rating and 65 kAIC at 480V but features an upgraded PXR20 LSI electronic trip unit.
Which panelboards and switchboards are compatible with the NGH308033E?
This NG-frame breaker is designed for use in Eaton Pow-R-Line 4 panelboards, switchboards, and motor control centers.
What trip functions are included on the NGH308033E's electronic trip unit?
The 33 in the catalog number indicates it is equipped with a Digitrip 310 RMS electronic trip unit featuring adjustable Long-Time and Short-Time (LS) trip functions.
Does the NGH308033E come with mounting lugs?
No, the standard NGH308033E comes with stud/tapped pad terminals for bolt-on line and load connections. Cable lugs must be purchased separately based on your specific wire size requirements.
Is the NGH308033E rated for 100% continuous operation?
No, this breaker is standard 80% rated. Continuous loads should not exceed 640 amps (80% of its 800A nominal rating) in accordance with NEC requirements.
Does the NGH308033E support Zone Selective Interlocking (ZSI)?
Yes, the Digitrip 310 electronic trip unit on this breaker supports Zone Selective Interlocking, allowing it to communicate with downstream breakers to clear faults faster and reduce system stress.
Does the NGH308033E feature true RMS sensing?
Yes, the integrated Digitrip 310 electronic trip unit utilizes true RMS sensing to accurately measure current, ensuring reliable protection even in systems with high harmonic distortion.
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