Eaton / Cutler-Hammer HKDDC3250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer HKDDC3250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for high-capacity DC applications, the Eaton HKDDC3250 is a 250A, 3-pole MCCB from the Series C K-Frame lineup. It delivers essential LI protection for industrial plants, data centers, and solar PV installations. The breaker mounts into Eaton Series C panelboards and motor control centers. It comes equipped with standard lugs, accommodating 3 AWG to 350 kcmil wire.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKDDC |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 125VDC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 125VDC, 50kA @ 250VDC, 42kA @ 600VDC |
| Frame Type | K |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil (Cu/Al) |
| 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, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Terminal Shields |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | DC Rated, High Interrupting Capacity, PV Guard |
Product FAQs
5 answersWhat types of equipment can the HKDDC3250 be installed in?
This K-Frame breaker is designed for use in Eaton Series C panelboards, switchboards, and motor control centers.
What wire sizes are supported by the standard lugs on the HKDDC3250?
The standard lugs accept copper or aluminum conductors ranging from 3 AWG to 350 kcmil.
How does the trip unit operate on the HKDDC3250?
It utilizes a thermal magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
What are the specific DC interrupting ratings for this breaker?
The HKDDC3250 provides high interrupting capacities for DC applications, delivering 42kA at 125VDC, 50kA at 250VDC, and 42kA at 600VDC.
Is the HKDDC3250 part of the Series C family?
Yes, it is a Series C K-Frame molded case circuit breaker, which is a standard footprint for many Eaton and Cutler-Hammer industrial applications.
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