Eaton / Cutler-Hammer MDS6303WEA Insulated Case Circuit Breaker
- 3000A
- 3 Pole
- Withdrawable
Quantity
Eaton / Cutler-Hammer MDS6303WEA - 3000A 3 Pole Insulated Case Circuit Breaker
New
Quantity
Description
Built to protect circuits against overloads and short circuits, the Eaton / Cutler-Hammer MDS6303WEA is a 3000A, 3-pole insulated case circuit breaker. It is rated for 240VAC, 480VAC and 600VAC, with 65kA interrupting capacity at each voltage. This MDS series breaker belongs to the Magnum DS family and uses withdrawable mounting with lug terminals. Its electronic trip provides long-time and instantaneous protection for 3-phase circuits.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | MDS6303WEA |
| Series | MDS |
| Amperage | 3000A |
| Poles | 3 |
| Mounting Style | Withdrawable |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 65kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Magnum DS Switchgear |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Temp Rating | 40C |
|---|
Product FAQs
7 answersHow should I use the 3000A rating when selecting the Eaton / Cutler-Hammer MDS6303WEA?
The 3000A rated current is the basis for evaluating this breaker against the circuit's load requirements. Coordinate breaker selection with the conductor ampacity and required circuit protection.
Which system voltages is this breaker rated for?
The breaker is rated for 240VAC, 480VAC and 600VAC. Select it according to the circuit's operating voltage, and evaluate the interrupting rating at that voltage.
How much available fault current can this breaker interrupt?
Its interrupting rating is 65kA at 240VAC, 480VAC and 600VAC. The available fault current at the installation point must not exceed that rating.
What protection does the electronic LI trip provide?
The electronic trip provides Long-Time and Instantaneous functions, coded LI. Long-Time protection responds to sustained overcurrent with a delay, while Instantaneous protection responds to high overcurrent without an intentional delay.
How does the 3-pole configuration apply to a 3-phase circuit?
This breaker has 3 poles for a 3-phase circuit. Use the poles for the three phase conductors when planning the circuit connections.
What does withdrawable mounting mean for installation and maintenance?
Withdrawable mounting allows the breaker to be withdrawn from its installed position. Plan the installation with access and space for withdrawal during maintenance.
How are circuit conductors terminated on this breaker?
The breaker uses lug terminals to secure the circuit conductors. Plan for lug terminations, with proper conductor preparation and tightening during installation.
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