Eaton / Cutler-Hammer HFDDC3150L Molded Case Circuit Breaker
- 150A
- 3 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer HFDDC3150L - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for renewable energy applications, the Eaton HFDDC3150L is a 150A, 3-pole molded case circuit breaker. It features specialized PVGard and DC ratings, making it an excellent choice for solar combiner boxes and industrial setups. This Series C F-Frame breaker mounts into compatible Eaton panelboards and enclosures. It includes factory-installed line and load lugs, accommodating 4 AWG to 4/0 AWG wire. Delivering a 42 kAIC capacity, it utilizes a fixed thermal-magnetic trip unit.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFDDC3150L |
| Series | HFDDC |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 600VAC, 42kA @ 250VDC, 42kA @ 600VDC |
| Frame Type | HFDDC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Solar Combiner Boxes |
| Wire Gauge | 4 AWG - 4/0 AWG |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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 | Line and Load Terminals |
| Standards | UL 489, UL 489B |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Photovoltaic Rated, 50C Ambient Calibration, Reverse Feed, Non-Interchangeable Trip, High Interrupting Capacity |
Product FAQs
7 answersWhat does the "DC" in the HFDDC3150L frame type indicate?
The "DC" designates that this breaker is specifically engineered and tested for direct current applications. It is commonly used in solar photovoltaic (PV) systems, battery storage, and UPS systems requiring up to 600VDC protection.
What does the "L" suffix in the HFDDC3150L catalog number mean?
The "L" suffix indicates that the circuit breaker is factory-equipped with both line and load lug terminals. Breakers without this suffix may only have terminals on one end or require separate lug kits.
How should the poles be wired for 600VDC applications?
For 600VDC applications, Eaton requires all three poles of the HFDDC3150L to be wired in series to safely interrupt the fault current and achieve the full voltage rating.
What enclosures or panels is the HFDDC3150L compatible with?
This F-Frame breaker is designed to mount in Eaton Series C panelboards. Because of its DC ratings, it is also frequently installed in solar combiner boxes and DC distribution enclosures.
Can I use the HFDDC3150L in a 2-pole DC configuration?
Yes, a 3-pole HFDDC breaker can be wired as a 2-pole device for lower voltage DC applications, such as 250VDC, by wiring two poles in series according to Eaton published wiring diagrams.
How does the handle indicate the breaker status?
The breaker features a color-coded handle barrier. The indicator shows red when ON, green when OFF, and white when the breaker has tripped. The handle will also rest in the center position after a trip.
How do I reset the HFDDC3150L after a trip?
To reset the breaker after a thermal-magnetic trip, move the handle firmly to the OFF position (indicated by the green color code) until it clicks, then push it back to the ON position (red).
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