Eaton / Cutler-Hammer GDB3030D Molded Case Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
GDB3030D
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GDB3030D
Quantity
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Eaton / Cutler-Hammer GDB3030D - 30A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial power systems, the Eaton GDB3030D is a 30A, 3-pole molded case circuit breaker. As part of the Series C lineup, it delivers reliable long-time and instantaneous (LI) protection. The unit mount configuration ensures proper fitment into Eaton Series C panelboards, switchboards, and motor control centers. With a 14 kAIC rating at 480VAC, this breaker features fixed thermal-magnetic trip settings. It is HACR rated for demanding motor control applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GDB3030D |
| Series | GDB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | GDB |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-10 AWG (Cu/Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 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 |
|---|---|
| Accessories | Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
5 answersIs the GDB3030D compatible with older Westinghouse panelboards?
Yes. Eaton acquired the Westinghouse distribution equipment line, and this Series C G-Frame breaker serves as a direct replacement for legacy Westinghouse breakers sharing the exact same catalog number.
What equipment is this G-Frame breaker designed to fit?
It is a unit mount, bolt-on breaker intended for use in Eaton Series C panelboards, switchboards, and motor control centers.
What type of trip unit is installed in this breaker?
It features a non-interchangeable thermal magnetic trip unit. Both the long-time and instantaneous trip functions are fixed and cannot be adjusted in the field.
Can the GDB3030D be utilized in direct current applications?
Yes, this breaker is rated for DC systems up to 250VDC, providing a 10kA interrupting capacity for those specific applications.
What wire sizes are supported by the standard lugs?
The included line and load lugs accept 14 AWG to 10 AWG wire and are rated for both copper and aluminum conductors.
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