Eaton / Westinghouse DA2400 Molded Case Circuit Breaker
- 400A
- 2 Pole
- Unit Mount
Quantity
Eaton / Westinghouse DA2400 - 400A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the classic Westinghouse D-Frame lineup, this 400A unit-mount breaker delivers reliable thermal-magnetic trip functions for heavy commercial and industrial facilities. It serves as an exact fit for aging infrastructure without requiring extensive modifications. The unit installs into legacy Westinghouse panelboards, switchboards, and motor control centers. While officially replaced by the KD2400, utilizing this exact match avoids the need for retrofit kits. Rated for 600VAC and 250VDC.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | DA2400 |
| Series | DA |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | DA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 3/0 AWG - 250 kcmil |
| Max Wire | 250 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs Not Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhat equipment is the DA2400 compatible with?
It is designed for use in legacy Westinghouse panelboards, switchboards, and motor control centers.
Is the Westinghouse DA2400 the same as the Eaton DA2400?
Yes. Eaton acquired the Westinghouse distribution equipment line. Breakers marked with either brand share the exact same physical dimensions and electrical characteristics.
What wire sizes do the standard lugs accept?
The terminals accommodate two 3/0 AWG to 250 kcmil conductors per phase.
How is this breaker installed in an enclosure?
This is a unit mount breaker with a feed-thru connection. It bolts directly to the mounting pan or structure rather than plugging onto a busbar.
Are the trip settings on this breaker adjustable?
No, this unit features a thermal magnetic trip unit with fixed thermal and fixed magnetic settings for long time and instantaneous protection.
Can this breaker be used in direct current systems?
Yes, it is rated for DC applications up to 250VDC with an interrupting capacity of 10kA.
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