Eaton / Cutler-Hammer KDB3400FT32W Molded Case Circuit Breaker
- 400A
- 3 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer KDB3400FT32W - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Belonging to the proven Series C family, the Eaton KDB3400FT32W is a 400A, 3-pole molded case circuit breaker. It is designed for heavy-duty commercial and industrial applications requiring precise protection. This panel mount MCCB integrates into Eaton Series C panelboards, switchboards, and motor control centers. It is supplied without terminals and is reverse feed capable.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | KDB |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Amperage Range | 160-400A |
|---|
| Frame Type | KD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Motor Control Centers, Switchboards |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat is the difference between Eaton KDB and KD circuit breakers?
Both are Series C K-frame breakers. The primary difference is that KDB breakers feature non-interchangeable trip units, whereas KD breakers are designed with interchangeable trip units.
What does the LSI designation mean on the KDB3400FT32W trip unit?
LSI stands for Long-Time, Short-Time, and Instantaneous trip functions. This adjustable electronic trip unit allows electricians to fine-tune these parameters for precise selective coordination and system protection.
What types of equipment are compatible with the KDB3400FT32W?
This K-frame breaker is designed for installation in Eaton Series C panelboards, motor control centers, and switchboards.
Can the KDB3400FT32W be reverse fed?
Yes, Eaton KDB circuit breakers with non-interchangeable trip units are suitable for reverse feed applications.
What does the 32W suffix indicate in the KDB3400FT32W catalog number?
The 32W suffix indicates the breaker is equipped with a Digitrip 310 electronic trip unit featuring adjustable Long-Time, Short-Time, and Instantaneous protection.
How does the electronic trip unit in the KDB3400FT32W improve system protection?
The solid state electronic trip unit provides more precise and adjustable trip curves compared to standard thermal-magnetic breakers. This allows panel builders to accurately match specific load requirements and improve downstream coordination.
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.