Eaton / Cutler-Hammer LGH340032W Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer LGH340032W - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for high-capacity industrial applications, this 400A molded case circuit breaker provides an impressive 65kAIC interrupting rating at 480VAC. It installs into Eaton Series G switchboards and panelboards, supplied without lugs (W suffix) to accommodate specialized terminal configurations. The microprocessor-based LSI trip unit enables precise adjustments for long-time, short-time, and instantaneous parameters, ensuring optimal system coordination.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | LGH |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 160-400A |
|---|
| Frame Type | LG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series G Panelboards, Switchboards |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, KEMA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, True RMS Sensing |
Product FAQs
7 answersWhat does the "W" in the LGH340032W catalog number indicate?
The "W" suffix means this breaker ships without line or load terminals. It is designed for direct busbar connection or requires separate lug kits for wire termination. If you need standard lugs included, look for the LGH340032G.
What does the LSI designation mean for this breaker's trip unit?
LSI stands for Long-Time, Short-Time, and Instantaneous. This electronic trip unit allows you to adjust these three parameters to precisely coordinate the breaker's tripping characteristics with other protective devices in your system.
Can I use the LGH340032W in an older Cutler-Hammer panelboard?
Yes, Eaton Series G LG-frame breakers are backwards compatible with legacy Cutler-Hammer Series G panelboards and switchboards designed to accept LG frames.
Is the LGH340032W rated for 100% continuous operation?
No, standard Eaton Series G breakers without a "C" suffix in the catalog number are 80% rated. The 400A rating is for non-continuous loads, and continuous loads should not exceed 320A.
Are internal accessories field-installable on the LGH340032W?
Yes, Eaton Series G LG-frame breakers support field-installable internal accessories, such as shunt trips, auxiliary switches, and undervoltage releases, which mount under the front cover.
Does the LGH340032W provide ground fault protection?
No, this specific model features an LSI trip unit (Long-Time, Short-Time, Instantaneous) which does not include integrated ground fault protection. For ground fault protection, you would need an LSIG trip unit, such as the LGH340036W.
How do I adjust the trip settings on the LGH340032W?
The Digitrip 310+ electronic trip unit features rotary dials on the face of the breaker. These dials allow you to configure the pickup and delay settings for the Long-Time, Short-Time, and Instantaneous functions using a standard flathead screwdriver.
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