Eaton / Cutler-Hammer NGH312T33WP08 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH312T33WP08 - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for maximum flexibility, the Eaton NGH312T33WP08 provides 1200A of electronic trip protection across three poles. It serves as a reliable main or feeder device in commercial and industrial facilities. The bolt-on NG-frame unit integrates seamlessly with Eaton Series G panelboards and switchboards. Featuring a Digitrip 310+ trip unit with adjustable long and short-time (LS) functions, it offers superior coordination advantages over standard thermal-magnetic breakers.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | NGH |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 600-1200A |
|---|
| Frame Type | NG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series G 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 |
|---|---|
| Accessories | Digitrip 310+ Trip Unit |
| 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, Current Limiting, Reverse Feed, True RMS Sensing |
Product FAQs
8 answersWhat does the "P08" suffix in the NGH312T33WP08 catalog number indicate?
The P08 suffix indicates this breaker includes a 1200A rating plug that is adjustable to 1200A, 1000A, 800A, or 600A.
What trip unit is installed in the NGH312T33WP08?
This breaker features a Digitrip 310 RMS electronic trip unit with Long-Time and Short-Time (LS) adjustability. This corresponds to the "T33" in the catalog number.
Can the Eaton NGH312T33WP08 be used for reverse feed applications?
Yes, all Eaton NG-frame circuit breakers are suitable for reverse feed use.
What equipment is the NGH312T33WP08 designed to be installed in?
It is designed for use in Eaton Series G panelboards, switchboards, and motor control centers.
What is the difference between the NGH312T33WP08 and the NGS312T33WP08?
The NGH has a higher interrupting capacity (100kAIC at 240VAC, 65kAIC at 480VAC) compared to the standard NGS frame (85kAIC at 240VAC, 50kAIC at 480VAC). Both share the same physical dimensions and trip unit features.
What does the "H" in the NGH312T33WP08 catalog number stand for?
The "H" designates this as a High Interrupting capacity breaker within the Series G NG frame family, rated for 65kAIC at 480VAC.
How is the NGH312T33WP08 mounted in a panel?
This is a bolt-on circuit breaker designed to be securely bolted directly to the busbars in compatible Eaton Series G equipment.
What safety features are built into the NGH312T33WP08 contact design?
The breaker utilizes a patented contact design with high-speed blow-open action. This uses electromechanical forces produced by high-level fault currents to clear faults quickly and enhance safety.
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