Siemens FD F-Frame Series (Siemens) Circuit Breakers
The Siemens FD series is an F-Frame molded case circuit breaker rated 15A–225A at 600VAC. FD breakers provide 35kA interrupting capacity at 480V for industrial and commercial feeder and branch circuit protection.
Series Specifications
| Frame | F-Frame — 250A Frame |
|---|---|
| Amperage Range | 15A – 225A |
| Voltage | 600VAC |
| Poles | 1-Pole, 2-Pole & 3-Pole |
| Interrupting Rating | 35kA @ 480V |
| Mounting | Fixed |
| Trip Type | Thermal Magnetic |
History and Replacement Context
The FD series was part of the ITE/Gould product line. Siemens continued the FD series after the 1978 acquisition, maintaining full backward compatibility with installed ITE FD breakers.
Typical Applications
- Industrial feeder circuits
- Commercial distribution
- Motor branch circuits
Available Catalog Numbers
- FD63B070 — 70A, 3 pole, 240/480/600VAC
- FD63B080 — 80A, 3 pole, 240/480/600VAC
- FD63B090 — 90A, 3 pole, 240/480/600VAC
- FD63B100 — 100A, 3 pole, 240/480/600VAC
- FD63B110 — 110A, 3 pole, 240/480/600VAC
- FD63B125 — 125A, 3 pole, 240/480/600VAC
- FD63B150 — 150A, 3 pole, 240/480/600VAC
- FD63B175 — 175A, 3 pole, 240/480/600VAC
- FD63B200 — 200A, 3 pole, 240/480/600VAC
- FD63B225 — 225A, 3 pole, 240/480/600VAC
- FD61B070 — 70A, 1 pole, 600V
- FD61B080 — 80A, 1 pole, 600V
- FD61B090 — 90A, 1 pole, 600V
- FD61B100 — 100A, 1 pole, 600V
- FD61B110 — 110A, 1 pole, 600V
- FD61B125 — 125A, 1 pole, 600V
- FD61B150 — 150A, 1 pole, 600V
- FD61B175 — 175A, 1 pole, 600V
- FD61B200 — 200A, 1 pole, 600V
- FD61B225 — 225A, 1 pole, 600V