Square D PGH Series Circuit Breakers
The Square D PGH series is a PowerPact P-Frame molded case circuit breaker with Micrologic H electronic trip, rated for 1200A frame size and 600VAC operation. PGH breakers provide 65kA interrupting capacity at 600V.
Series Specifications
| Frame | P-Frame (PowerPact) — 1200A Frame |
|---|---|
| Amperage Range | 250A – 1200A |
| Voltage | 600VAC |
| Poles | 3-Pole |
| Interrupting Rating | 65kA @ 600V / 65kA @ 480V / 100kA @ 240V |
| Mounting | I-Line Plug-In |
| Trip Type | Micrologic H Electronic |
History and Replacement Context
The PGH series provides the highest interrupting capacity in the PowerPact P-Frame 1200A family with ground fault protection.
Typical Applications
- High-fault industrial switchboards
- Large motor protection in high-fault environments
- Main distribution near large transformers
Available Catalog Numbers
- PGH36025 — 250A, 3 pole, 600VAC
- PGH36030 — 300A, 3 pole, 600VAC
- PGH36035 — 350A, 3 pole, 600VAC
- PGH36040 — 400A, 3 pole, 600VAC
- PGH36045 — 450A, 3 pole, 600VAC
- PGH36050 — 500A, 3 pole, 600VAC
- PGH36060 — 600A, 3 pole, 600VAC
- PGH36070 — 700A, 3 pole, 600VAC
- PGH36080 — 800A, 3 pole, 600VAC
- PGH36100 — 1000A, 3 pole, 600VAC
- PGH36120 — 1200A, 3 pole, 600VAC