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Manufacturer Resources
Spec Sheet
Product Specs
- Amperage Rating:
- 300A
- Frame Size:
- K-frame
- Number Of Poles:
- Three-pole
- Series:
- Series C
- Trip Type:
- Thermal magnetic
- Department:
- Electrical
- Product Length:
- 5.25 IN
- Product Height:
- 7 IN
- Product Weight:
- 1.82 LB
- Product Width:
- 4.5 IN
B-LINE KT3300T – Frequently Asked Questions
1) What amperage and frame size is the Eaton KT3300T trip unit?
The KT3300T is a 300 amp, three-pole trip unit for K-frame Series C molded case circuit breakers. Frame and amp rating both have to match the breaker you are working on, so a K-frame breaker set up for 300A is what this goes into.
2) Will the KT3300T work on a single-pole or two-pole breaker?
No. This is a three-pole unit. A single-pole or two-pole K-frame application needs a trip unit built for that pole count, not this one.
3) Is the KT3300T a thermal magnetic or an electronic trip unit?
The trip type on the KT3300T is listed as thermal magnetic: a bimetal element handles the overload side and a magnetic element handles instantaneous short circuit tripping. That distinction matters if your spec calls for adjustable long-time, short-time and ground fault settings, because that is a different family of trip unit.
4) What part number do I quote my distributor for the 300A K-frame Series C trip unit?
KT3300T is the manufacturer part number. Quote it with the Eaton Series C K-frame designation so nobody substitutes a different frame or amp rating.
5) How big is the KT3300T trip unit and what does it weigh?
It measures 7 in height, 5.25 in length and 4.5 in width, and weighs 1.82 lb. Useful when you are checking clearance inside the panelboard or switchboard cell before pulling the breaker.
6) Where can I get the full electrical ratings for the KT3300T?
Eaton publishes a spec sheet for the KT3300T that is linked from the product information, and that is where the interrupting ratings and voltage data live. For facility standardization work, the fields that pin the part down are 300A, K-frame, three-pole, thermal magnetic.
How fast can I get the B-LINE KT3300T delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 KT3300T come with a warranty?
Absolutely. The B-LINE KT3300T 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 KT3300T?
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selection,
installation tips, and troubleshooting. Contact Us
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