Eaton / Cutler-Hammer PDD33P0400TFAN Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer PDD33P0400TFAN - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial applications, the Eaton PDD33P0400TFAN is a 3-pole, 400A molded case circuit breaker from the Power Defense series. This unit-mount MCCB installs into Pow-R-Line panelboards and switchboards. It serves as a drop-in substitute for discontinued KDC3400 K-Frame breakers, making it ideal for facility upgrades. Rated at 200kAIC at 240VAC, it features a fixed thermal and adjustable magnetic trip unit. The breaker is dual-rated for AC/DC use and HACR certified.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | PDD |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 22kA @ 250VDC |
| Frame Type | Complete Breaker |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Handle Lock, Terminal Shields |
|---|---|
| Accessories | No Terminals |
| Standards | CSA, RoHS, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, RoHS Compliant, Dual Rated (AC/DC), Trip-Free Mechanism, Visual Trip Indicator |
Product FAQs
6 answersWhat equipment is the PDD33P0400TFAN designed to be installed in?
This 400A Power Defense breaker is designed for use in Eaton Pow-R-Line panelboards and switchboards.
What does the LI trip function indicate on this breaker?
The LI designation means the thermal-magnetic trip unit provides Long-Time and Instantaneous protection. The thermal element is fixed for overload protection, while the magnetic instantaneous trip is adjustable for short-circuit coordination.
How is the PDD33P0400TFAN mounted within an enclosure?
It features a unit mount design with a bolt-on connection, allowing it to be securely fastened directly to the buswork of compatible Eaton panelboards.
What breaker frame family does this model belong to?
This circuit breaker is part of the Eaton Power Defense series and is built on the Frame 3 chassis, often referred to as PDE Frames.
Why does this breaker feature an adjustable magnetic trip?
The adjustable magnetic setting allows electricians to fine-tune the instantaneous trip response. This helps coordinate with downstream devices and prevents nuisance tripping from high inrush currents.
What applications are suitable for the 200kAIC rating on this breaker?
The high 200kAIC interrupting capacity at 240VAC makes this breaker ideal for heavy commercial and industrial systems where extremely high available fault currents are present.
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