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Eaton / Cutler-Hammer RD320T33W Molded Case Circuit Breaker

  • 2000A
  • 3 Pole
  • Bolt-On
Eaton / Cutler-Hammer RD320T33W
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU RD320T33W
Select Item Condition
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  • 2000A
  • 3 Pole
  • Bolt-On

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Eaton / Cutler-Hammer RD320T33W - 2000A 3 Pole Molded Case Circuit Breaker

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$9,818.24 Check Stock

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Description

Delivering robust protection for industrial systems, the Eaton RD320T33W is a 2000A, 3-pole MCCB. It includes a Digitrip 310 RMS electronic trip unit with adjustable LS protection. This R-Frame breaker bolts into Eaton Series C switchboards, motor control centers, and panelboards. True RMS sensing ensures accurate fault detection. Capable of interrupting 65 kAIC at 480VAC, it offers exceptional reliability. The breaker features an interchangeable trip unit and is HACR rated.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number RD320T33W
Series RD
Amperage 2000A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600VAC
Phase 3
AIC Rating 125kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC
Fit and installation
Frame Type RD
Terminal Type Lugs
For Use With Eaton Series C Switchboards, Motor Control Centers, Panelboards
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LS
Trip Function Long-Time, Short-Time
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Rating Plugs, Padlock Attachment, Bell Alarm
Accessories Without Terminals
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features HACR Rated, Interchangeable Trip Unit, True RMS Sensing

Product FAQs

7 answers
What equipment is the RD320T33W designed to be installed in?

This R-Frame breaker is engineered for use in Eaton and Cutler-Hammer Series C switchboards, motor control centers, and large industrial power distribution panels.

What does the T33W suffix indicate on this Eaton breaker?

The T33W designates that the breaker is equipped with a factory-installed Digitrip 310 RMS electronic trip unit, configured specifically with adjustable Long-Time and Short-Time (LS) protection functions.

How does the LS trip unit improve system coordination?

The Short-Time (S) function introduces an intentional delay during a fault. This allows smaller downstream breakers to trip first, isolating the fault while keeping the rest of the electrical system online.

Are the trip settings on the Digitrip 310 unit adjustable?

Yes, the electronic trip unit features adjustable dials for both long-time pickup and short-time pickup, allowing precise calibration to match your specific load and coordination requirements.

Is the RD320T33W backward compatible with older Westinghouse panels?

Yes, Eaton Series C R-Frame breakers are physically interchangeable with legacy Cutler-Hammer and Westinghouse R-Frame breakers, making them suitable for retrofits in existing switchboards.

Does this breaker require a specific mounting configuration?

Yes, it utilizes a bolt-on connection. The breaker must be bolted directly to the bus structure of the switchboard or panelboard, ensuring a secure, high-capacity connection for 2000A applications.

Can I install this R-Frame breaker in a standard lighting panel?

No, R-Frame breakers like the RD320T33W are physically large, high-capacity devices designed exclusively for heavy-duty switchboards, motor control centers, and large power distribution panels.

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