B-Line Eaton Series C electron...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17,432.49
B-Line Eaton Series C electronic , K-, CKD, Complete , OPTIM 550, Electronic LSIG trip, Three-pole, 250A, 600 Vac, 250 Vdc, Without terminals, 50/60

B-Line Eaton Series C electronic , K-, CKD, Complete , OPTIM 550, Electronic LSIG trip, Three-pole, 250A, 600 Vac, 250 Vdc, Without terminals, 50/60

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Model: CKD3250T56W
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$17,432.49
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Eaton Series C electronic molded case circuit breaker, K-frame, CKD, Complete breaker, OPTIM 550, Electronic LSIG trip, Three-pole, 250A, 600 Vac, 250 Vdc, Without terminals, 50/60 Hz, 100% rated

Manufacturer Resources

Product Specs

Amperage Rating:
250A
Certifications:
UL Listed
Circuit Breaker Frame Type:
Complete breaker
Circuit Breaker Type:
CKD
Frame:
K-frame
Frequency Rating:
50-60 Hz
Interrupt Rating:
35 kAIC at 480 Vac, 25 kAIC at 600 Vac
Number Of Poles:
Three-pole
Product Height:
5.5 IN
Product Length Depth:
6 IN
Product Weight:
11.95 LB
Product Width:
5.5 IN
Series:
Series C
Terminals:
Without terminals
Trip Type:
Electronic LSIG
Voltage Rating:
600 Vac, 250 Vdc
Department:
Electrical
Performance Rating:
100% rated

B-LINE CKD3250T56W – Frequently Asked Questions

1) Does the Eaton CKD3250T56W breaker come with lugs or terminals?
No. The CKD3250T56W ships without terminals, so you have to order the K-frame terminal lugs or connectors separately to land your conductors. Budget for those on the same order or the breaker cannot be wired in.
2) What is the interrupting rating on this 250A K-frame Eaton breaker at 480 and 600 volts?
35 kAIC at 480 Vac and 25 kAIC at 600 Vac. If your available fault current at the point of installation exceeds those figures, this breaker is not the right device for that location.
3) Will this breaker work on a 600 volt three-phase system, and can it be used on DC?
Three-pole and rated 600 Vac, so it suits 480Y/277 and 600 V three-phase distribution, and it is also rated 250 Vdc for DC applications. Frequency rating is 50-60 Hz.
4) What does the LSIG trip unit on this Eaton Series C breaker actually give me?
The OPTIM 550 electronic trip unit provides long-time, short-time, instantaneous, and ground fault protection (LSIG). That means adjustable pickup and delay bands you can set to coordinate selectively with upstream and downstream devices, plus integral ground fault protection, which a thermal-magnetic breaker of the same frame cannot do.
5) Is the CKD3250T56W a complete breaker or just a trip unit replacement?
It is a complete breaker, K-frame CKD type with the OPTIM 550 trip unit installed. You are not buying a bare frame or a standalone trip unit, so it drops in as a whole device.
6) How much space and weight do I need to allow for this K-frame breaker in a panel or enclosure?
The breaker measures 5.5 inches high, 5.5 inches wide, and 6 inches deep, and weighs 11.95 lb. Plan gutter space and mounting support accordingly, and remember terminals are not included, so lug projection adds to the depth you need behind the cover.
7) I need ground fault protection on a 250A feeder. Do I add a separate GFP relay?
Not with this device. The ground fault function is built into the OPTIM 550 electronic trip unit as part of its LSIG protection, so a separate ground fault relay and sensor are not required for the breaker itself.
How fast can I get the B-LINE CKD3250T56W delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the B-LINE CKD3250T56W come with a warranty?
Absolutely. The B-LINE CKD3250T56W is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the B-LINE CKD3250T56W?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the B-LINE CKD3250T56W from ZenSupply?
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