Eaton / Westinghouse LC3300F Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Quantity
Eaton / Westinghouse LC3300F - 300A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for demanding commercial environments, this 300A electronic trip breaker delivers highly accurate overcurrent protection. The Seltronic solid-state mechanism includes adjustable long-time and short-time parameters to ensure proper fault isolation. It serves as a reliable drop-in solution for older Westinghouse switchboards without requiring adapter kits. Delivering a 30kAIC rating at 480VAC, it handles significant fault currents safely. The LD3300 is the modern substitute.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | LC3300F |
| Series | LC |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse/Eaton Switchboards, Panelboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LS |
| Trip Function | Long-Time, Short-Time |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs Not Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Seltronic, Solid State |
Product FAQs
7 answersWhat is the modern replacement for the legacy Westinghouse LC3300F circuit breaker?
The Eaton LD3300 is the direct modern substitute for the LC3300F. It serves as a reliable replacement in older Westinghouse switchboards and motor control centers.
Can I install the LC3300F in older Westinghouse switchboards without an adapter kit?
Yes, the LC3300F is designed as a drop-in solution for legacy Westinghouse and Eaton switchboards, panelboards, and motor control centers, requiring no special adapter kits for unit mounting.
What type of trip unit is equipped on the LC3300F?
This breaker features a Seltronic solid-state electronic trip unit with Long-Time and Short-Time (LS) trip functions for highly accurate overcurrent and fault isolation.
How does the LC3300F connect to the electrical system?
It features a bolt-on connection for secure unit mounting and utilizes standard lug terminals for the line and load wire connections.
What is the maximum interrupting capacity of the LC3300F at 240V?
While it is rated for 30kAIC at 480VAC, the LC3300F can safely interrupt up to 42kAIC when applied in 240VAC systems.
Are there specific safety standards the LC3300F meets?
Yes, this legacy molded case circuit breaker was manufactured to meet UL 489 and NEMA AB-1 standards for safe operation in commercial and industrial environments.
What frame group does the LC3300F belong to?
It is part of the legacy LC/MC frame group, which is essential to verify when matching physical dimensions and busbar configurations in existing Eaton or Cutler-Hammer enclosures.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- DLDeanna L.Verified BuyerReviewingSquare D LC36600 - 600A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Square D LC36600 - 600A 3 Pole Molded Case Circuit Breaker
Worked great! Our customer was very pleased with the results.