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Eaton / Cutler-Hammer PDG33M0300TFAJ Molded Case Circuit Breaker

  • 300A
  • 3 Pole
  • Panel Mount
Eaton / Cutler-Hammer PDG33M0300TFAJ
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU PDG33M0300TFAJ
Select Item Condition
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  • 300A
  • 3 Pole
  • Panel Mount

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Eaton / Cutler-Hammer PDG33M0300TFAJ - 300A 3 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer PDG33M0300TFAJ - 300A 3 Pole Molded Case Circuit Breaker

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$2,858.80 In Stock

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Description

Engineered for industrial applications, the Eaton PDG33M0300TFAJ is a 3-pole, 300A MCCB from the Power Defense Frame 3 series. It provides reliable protection with a fixed thermal and adjustable magnetic trip unit. This panel-mount breaker fits Eaton Power Defense, Series G LG, and Series C K-Frame panelboards. It serves as an exact replacement for legacy LGH3300FAG and HKD3300 breakers. Rated at 65 kAIC at 480V, it includes standard line and load lugs and is fully HACR rated.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number PDG33M0300TFAJ
Series PDG3
Amperage 300A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Power Defense Panelboards, Series G LG Panelboards, Series C K-Frame Panelboards
Wire Gauge 3 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 3 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Rotary Handle, Terminal Shields, Interphase Barriers
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, RoHS Compliant, Globally Rated

Product FAQs

8 answers
Can the PDG33M0300TFAJ replace older Eaton Series C or Series G breakers?

Yes, the Power Defense Frame 3 (PDG3) is designed to fit the same physical footprint as legacy Eaton Series C K-Frame and Series G LG-Frame breakers. It can serve as a direct replacement for older models like the HKD3300 and LGH3300FAG in existing panelboards.

What wire sizes are compatible with the standard lugs on the PDG33M0300TFAJ?

The standard line and load lugs on this breaker accept 3 AWG to 350 kcmil aluminum or copper wire. Always ensure proper torque specifications are applied during installation as outlined by Eaton.

How does the adjustable magnetic trip function work on this breaker?

The PDG33M0300TFAJ features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection. The magnetic dial allows you to fine-tune the instantaneous trip threshold to coordinate with downstream devices or specific load inrush currents.

What panelboards are compatible with the PDG33M0300TFAJ?

This breaker is designed for use in Eaton Power Defense panelboards, as well as legacy Series G LG panelboards and Series C K-Frame panelboards.

Does the PDG33M0300TFAJ come with internal accessories like shunt trips or auxiliary switches?

No, this specific catalog number does not come factory-equipped with internal accessories. However, the Power Defense Frame 3 series supports field-installable accessories, such as shunt trips, undervoltage releases, and auxiliary contacts, which can be added under the front cover.

What does the 65kAIC at 480VAC rating mean for panel coordination?

The 65kAIC rating at 480VAC indicates the maximum fault current this breaker can safely interrupt without sustaining damage. When installing in a commercial or industrial panel, ensure the available fault current at the line terminals does not exceed this value to maintain safety and National Electrical Code compliance.

Is the PDG33M0300TFAJ rated for use in DC applications?

Yes, in addition to its AC voltage ratings, this thermal-magnetic breaker is rated for 250VDC applications with an interrupting capacity of 22kAIC.

Can I mount the PDG33M0300TFAJ on a DIN rail?

No, the PDG33M0300TFAJ is a panel-mount molded case circuit breaker designed to be bolted directly to the chassis or backpan of a compatible panelboard or enclosure. It is too large for standard DIN rail mounting.

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