Eaton / Cutler-Hammer DK3300V Molded Case Circuit Breaker
- 300A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
DK3300V
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
DK3300V
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer DK3300V - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
300A 3 Pole Molded Case Circuit Breaker
300A 3 Pole Molded Case Circuit Breaker
300A 3 Pole Molded Case Circuit Breaker
Description
Belonging to the proven Series C family, the Eaton DK3300V is a 300A, 3-pole molded case circuit breaker built for commercial distribution. It utilizes fixed thermal-magnetic trips for reliable LI protection. This K-frame device mounts into Eaton Series C panelboards, switchboards, and motor control centers. It includes factory-installed lugs for 3 AWG to 350 kcmil wire, and substitutes for the KD3300V. Rated for 65kAIC at 240VAC, it safely clears severe faults and is HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | DK |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | DK |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Motor Control Centers, Switchboards |
| 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | HACR, NEMA AB 1, UL 489, CSA C22.2 No. 5 |
| Approval | CE, CSA, UL |
| Temp Rating | 50C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 50C Ambient Calibration |
Product FAQs
5 answersWhat does the V suffix mean on the DK3300V circuit breaker?
The V suffix indicates that the breaker is calibrated for a 50 degrees Celsius ambient operating temperature. The standard DK3300 is calibrated for 40 degrees Celsius.
Can I substitute a KD3300 for the DK3300V?
Yes, the KD3300 is the 600VAC version of the same Series C K-frame breaker and will physically fit and function in place of the 240VAC DK3300V. Note that a standard KD3300 is calibrated for 40 degrees Celsius rather than 50 degrees Celsius.
Can I adjust the trip settings on the DK3300V?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
Does the DK3300V support field-installed internal accessories?
Yes, it accepts standard Eaton Series C K-frame internal accessories, including shunt trips, auxiliary switches, and undervoltage releases. These install under the front cover of the breaker.
Can the DK3300V be reverse fed?
Yes, standard Series C K-frame thermal magnetic breakers like the DK3300V are suitable for reverse feed applications. They do not have line and load side restrictions.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 3 reviews.
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Rating
3 reviews
- MDMichael D.Verified BuyerReviewingEaton / Cutler-Hammer DK3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/13/26Perfect fit and fast shipping
My animal hospital had the main breaker fail. They were able to get the breaker to me in record time. Went right in and fixed the problem.
- TPThomas P.ReviewingEaton / Cutler-Hammer DK3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/26/23Quick and on time
The service was quick and on time, no problems with the breaker.
- LFLou F.ReviewingEaton / Cutler-Hammer DK3300 - 300A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/24/20Owner
Purchasing from Superbreakers has been a great experience! It was quick and easy. The inventory was awesome. We needed some advice and your crack team of experts was very helpful! Thanks!