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Eaton / Cutler-Hammer KD3400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
KD3400
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
KD3400
Quantity
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Eaton / Cutler-Hammer KD3400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer KD3400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | KD3400 |
| Series | KD |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 3/0 AWG - 250 kcmil or (1) 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Handle Mechanism, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (TA400K) |
| Standards | HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip Unit |
Quantity
Eaton / Cutler-Hammer KD3400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | KD3400-R |
| Series | KD |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 3/0 AWG - 250 kcmil or (1) 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Handle Mechanism, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (TA400K) |
| Standards | HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip Unit |
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Description
Serving as a high-capacity protection solution, this 400-amp K-Frame MCCB is part of the Eaton Series C lineup. It mounts into Pow-R-Line 3a, Pow-R-Line 4, and standard Series C panelboards or switchboards. Equipped with a fixed thermal and adjustable magnetic (LI) trip unit, it ensures reliable defense against overloads and short circuits. The breaker boasts a 35 kAIC rating at 480VAC, reverse feed capability, and an interchangeable trip unit for maximum industrial adaptability.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | KD3400 |
| Series | KD |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 3/0 AWG - 250 kcmil or (1) 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Handle Mechanism, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (TA400K) |
| Standards | HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip Unit |
Product FAQs
5 answersWhich panelboards and equipment are compatible with the KD3400 breaker?
This K-frame breaker is designed to mount into Eaton Series C Panelboards, Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, switchboards, and motor control centers.
What wire configurations are accepted by the KD3400 standard terminals?
The standard mechanical lugs can securely terminate either dual conductors ranging from 3/0 AWG to 250 kcmil, or a single conductor up to 500 kcmil.
Is the trip unit on the KD3400 interchangeable for future load changes?
Yes, this breaker is equipped with a complete interchangeable thermal-magnetic trip unit. This allows you to swap the internal trip mechanism without replacing the entire breaker frame if load requirements or coordination needs change.
What is the specific thermal-magnetic replacement trip unit catalog number for the KD3400?
The correct 3-pole, 400A interchangeable thermal-magnetic trip unit for this breaker is catalog number KT3400T.
What is the replacement lug kit catalog number for this K-frame breaker?
The standard 3-pole replacement lug kit for the Eaton KD3400 is catalog number 3TA400K.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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2 reviews
- CMCorbett M.Rated 5 out of 5 stars5/25/21Great pricing
Site is easy to use, and best pricing out there.
- JPJob# P.Rated 5 out of 5 stars2/13/18Denis M. Fortino VP Premium Electric Corp.
Superbreakers provides outstanding service. My thanks to Javier for tech support!