Square D PGA Series Circuit Breakers
The Square D PGA series is a PowerPact P-Frame molded case circuit breaker with Micrologic G electronic trip, rated for 1200A frame size and 600VAC operation. PGA breakers cover 250A to 1200A for industrial switchboards and large motor protection applications.
Series Specifications
| Frame | P-Frame (PowerPact) — 1200A Frame |
|---|---|
| Amperage Range | 250A – 1200A |
| Voltage | 600VAC |
| Poles | 3-Pole |
| Interrupting Rating | 25kA @ 600V / 65kA @ 480V / 100kA @ 240V |
| Mounting | I-Line Plug-In |
| Trip Type | Micrologic G Electronic |
History and Replacement Context
The PowerPact P-Frame PGA series represents the modern generation of Square D large-frame MCCBs with advanced electronic trip functions.
Typical Applications
- Industrial switchboards
- Large motor protection
- Main distribution
- Commercial building mains
- Data center power distribution
Available Catalog Numbers
- PGA36025 — 250A, 3 pole, 600VAC
- PGA36030 — 300A, 3 pole, 600VAC
- PGA36035 — 350A, 3 pole, 600VAC
- PGA36040 — 400A, 3 pole, 600VAC
- PGA36045 — 450A, 3 pole, 600VAC
- PGA36050 — 500A, 3 pole, 600VAC
- PGA36060 — 600A, 3 pole, 600VAC
- PGA36070 — 700A, 3 pole, 600VAC
- PGA36080 — 800A, 3 pole, 600VAC
- PGA36100 — 1000A, 3 pole, 600VAC
- PGA36120 — 1200A, 3 pole, 600VAC