Square D PowerPact J-Frame JDA Series Circuit Breakers
The Square D PowerPact JDA series is a J-Frame molded case circuit breaker rated for a 250A frame size and 600VAC operation. JDA breakers use I-Line plug-in mounting and thermal-magnetic LI trip protection, making them ideal for commercial and industrial feeder and main circuit protection. The JDA series is 80% rated for continuous loading and features dual-break rotating contacts that reduce peak let-through current during fault conditions. The AllBreakerSales.com catalog includes the complete JDA lineup from 70A to 250A in 3-pole configurations. Request a written quote to confirm the required catalog number and current availability. The JDA series is the modern replacement for legacy Square D FA, FH, and HFD I-Line breakers in the J-Frame ampacity range.
Series Specifications
| Frame | J-Frame — 250A Frame |
|---|---|
| Amperage Range | 70A – 250A |
| Voltage | 600VAC / 250VDC |
| Poles | 3-Pole |
| Interrupting Rating | 25kA @ 240V / 18kA @ 480V / 14kA @ 600V |
| Mounting | I-Line Plug-In |
| Trip Type | Thermal Magnetic |
History and Replacement Context
The Square D PowerPact J-Frame series was introduced by Schneider Electric as the successor to the legacy FA and FH F-Frame series. The JDA designation indicates the standard thermal-magnetic trip unit with I-Line plug-in mounting. The PowerPact J-Frame replaced the older J-Frame catalog numbers and introduced improved interrupting ratings, dual-break rotating contacts, and a more compact form factor.
Typical Applications
- Commercial building feeder and branch circuit protection
- Industrial power distribution panels
- Manufacturing facility main and sub-feeder protection
- Data center power distribution units (PDUs)
- Motor control center (MCC) feeder protection
- Retrofit and upgrade of aging FA/FH/HFD I-Line installations
Available Catalog Numbers
- JDA36070 — 70A, 3 pole, 600VAC / 250VDC
- JDA36100 — 100A, 3 pole, 600VAC / 250VDC
- JDA36125 — 125A, 3 pole, 600VAC / 250VDC
- JDA36150 — 150A, 3 pole, 600VAC / 250VDC
- JDA36175 — 175A, 3 pole, 600VAC / 250VDC
- JDA36200 — 200A, 3 pole, 600VAC / 250VDC
- JDA36225 — 225A, 3 pole, 600VAC / 250VDC
- JDA36250 — 250A, 3 pole, 600VAC / 250VDC