Eaton / Cutler-HammerCRD316T36W
Eaton / Cutler-Hammer CRD320T33W Molded Case Circuit Breaker
- 2000A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
CRD320T33W
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CRD320T33W
Quantity
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Eaton / Cutler-Hammer CRD320T33W - 2000A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty power distribution, the Eaton CRD320T33W is a 3-pole, 2000A electronic trip circuit breaker. It serves as a reliable main or branch disconnect in commercial and industrial applications. This R-Frame breaker is built for unit mounting within Eaton Series C panelboards, switchboards, and motor control centers. It features a Digitrip 310 unit with adjustable Long-Time and Short-Time (LS) pickup settings, providing precise coordination and a 65kAIC rating at 480VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CRD320T33W |
| Series | CRD |
| Amperage | 2000A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 125kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC |
| Amperage Range | 1000-2000A |
|---|
| Frame Type | CRD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LS |
| Trip Function | Long-Time, Short-Time |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Digitrip 310 Trip Unit |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, True RMS Sensing |
Product FAQs
8 answersWhat does the T33W in the CRD320T33W catalog number indicate?
The T33W designates an electronic Digitrip 310 trip unit equipped with LS (Long-Time and Short-Time) protection functions. This allows for adjustable overload and short-circuit coordination.
Does the CRD320T33W come with terminal lugs installed?
No, this breaker is supplied without terminals. For a 2000A application, you will typically need a multi-barrel lug kit such as the Eaton TA2000RD, which accommodates up to six #2 AWG to 600 kcmil conductors per phase.
What enclosures and equipment are compatible with the CRD320T33W?
This Series C R-frame breaker is designed for bolt-on unit mount installation in Eaton and Cutler-Hammer switchboards, motor control centers, and panelboards.
Can the CRD320T33W replace older Westinghouse R-frame breakers?
Yes, Eaton Series C R-frame breakers are backward compatible and can directly replace legacy Cutler-Hammer and Westinghouse R-frame breakers with matching specifications.
What adjustments can be made on the Digitrip 310 LS trip unit?
The LS functions allow you to adjust the continuous current setting (Long-Time pickup and delay) for overload protection, as well as the Short-Time pickup and delay for selective coordination.
Is the CRD320T33W circuit breaker 100% rated?
Yes, the C prefix in the CRD frame designation indicates that this breaker is 100% rated. This means it can carry its full 2000A continuous current rating when installed in an appropriately sized and ventilated enclosure.
Does the CRD320T33W provide instantaneous short-circuit protection?
No, the LS designation indicates this trip unit provides Long-Time and Short-Time protection only. It lacks an Instantaneous (I) function, making it suitable for specific coordination schemes where a downstream breaker is intended to clear instantaneous faults.
What safety precautions should be taken before adjusting the Digitrip 310 settings?
Always ensure the breaker is de-energized or appropriate arc flash PPE is worn before accessing the trip unit panel. Adjustments should only be made by a qualified electrician following a properly engineered coordination study to prevent nuisance tripping or equipment damage.
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