Siemens LXD L-Frame Sentron Circuit Breakers
The Siemens LXD series is an L-Frame 600A Sentron molded case circuit breaker with non-interchangeable trip unit, rated for 600V and 65kA interrupting capacity. UL listed for reverse-feed applications. Available in 3-pole from 125A to 600A.
Series Specifications
| Frame | L-Frame 600A Sentron — 600A Frame |
|---|---|
| Amperage Range | 125A – 600A |
| Voltage | 600VAC |
| Poles | 3-Pole |
| Interrupting Rating | 65kA @ 480V |
| Mounting | Bolt-On |
| Trip Type | Thermal Magnetic |
History and Replacement Context
The LXD series features a non-interchangeable (fixed) trip unit, making it UL listed for reverse-feed applications per UL 489. Preferred for large feeder and main breaker applications.
Typical Applications
- Large commercial feeder circuits
- Industrial distribution
- Motor control center mains
- Switchboard feeders
- Reverse-feed applications