Eaton / Cutler-HammerPDG33M0300TFAJ
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Eaton / Cutler-Hammer PDG33G0300TFAJ Molded Case Circuit Breaker
- 300A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
PDG33G0300TFAJ
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
PDG33G0300TFAJ
Quantity
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Eaton / Cutler-Hammer PDG33G0300TFAJ - 300A 3 Pole Molded Case Circuit Breaker
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Eaton / Cutler-HammerPDG33G0250TFAJ
250A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial applications, the Eaton PDG33G0300TFAJ is a 300A, three-pole molded case circuit breaker. It provides robust protection for demanding electrical environments. Designed for panel mount installations, this Frame 3 MCCB includes standard lugs for integration into Eaton panelboards. It serves as a direct upgrade for legacy LD3300 and LGE3300FAW breakers. The unit features a thermal-magnetic trip mechanism with adjustable magnetic settings, delivering 35kAIC at 480VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | PDG3 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | PDG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Power Defense Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch, Handle Mechanism |
|---|---|
| Accessories | Standard Line and Load Terminals (PDG3X3TA300) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, RoHS Compliant |
| Approval | CCC, CE, CSA, IEC, RoHS, UL |
| Temp Rating | -20C to 70C |
| Construction Features | HACR Rated, Globally Rated |
Product FAQs
6 answersWhich Eaton enclosures and panels are compatible with the PDG33G0300TFAJ?
This Frame 3 Power Defense breaker is designed for panel mount installations in Eaton Power Defense panelboards, switchboards, and motor control centers.
What frame size is the PDG33G0300TFAJ?
This breaker belongs to the Eaton Power Defense Frame 3 (PDG3) family, which covers amperages up to 600A. Identifying the correct frame size is critical when selecting compatible internal accessories like shunt trips, undervoltage releases, or auxiliary switches.
How is the 250VDC rating achieved on this thermal-magnetic breaker?
To safely interrupt a direct current arc and achieve the 250VDC rating, Eaton requires wiring two poles in series. Always consult the manufacturer's installation guidelines for proper DC wiring configurations.
Are the standard lugs on the PDG33G0300TFAJ dual-rated?
Yes, the factory-installed feed-thru lugs are dual-rated for both aluminum and copper conductors. They accept wire sizes ranging from 3 AWG up to 350 kcmil.
How does the adjustable magnetic trip function benefit my electrical system?
The PDG33G0300TFAJ features a fixed thermal and adjustable magnetic (LI) trip unit. The adjustable magnetic dial allows electricians to fine-tune the instantaneous short-circuit response to match specific load characteristics, preventing nuisance tripping from high inrush currents.
What does the "G" in the middle of the PDG33G0300TFAJ catalog number signify?
In the Eaton Power Defense nomenclature, the "G" following the frame and pole count designates the interrupting rating tier. For Frame 3 breakers, it indicates a standard rating of 35 kAIC at 480VAC.
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