Eaton Fusible AC Disconnect, 100A, 240V, 3-Pole – DG323NRB
SKUDG323NRB
The Eaton DG323NRB is a 100 A, 240 V general-duty fusible cartridge-fuse safety switch in a NEMA 3R painted galvanized steel enclosure.
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Product Overview
The Eaton DG323NRB is a 100 A, 240 V general-duty fusible cartridge-fuse safety switch in a NEMA 3R painted galvanized steel enclosure.
This three-pole, four-wire fusible switch includes a neutral and accepts Class H cartridge fuses. It is the three-pole counterpart to two-pole fusible DG models in the same general-duty family.
Best For
- Outdoor 100 A AC disconnect points: Where a lockable fusible cartridge-fuse switch is specified for equipment isolation.
- Three-phase or three-pole fused disconnects: Where a 100 A, 240 V, three-pole fusible NEMA 3R switch with neutral is specified.
Key Features & Specifications
| Specification | Details |
|---|---|
| Product type | Eaton general duty cartridge fuse safety switch |
| Catalog number | DG323NRB |
| Amperage rating | 100 A |
| Voltage rating | 240 V |
| Number of poles | Three-pole |
| Number of wires | Four-wire |
| Fuse configuration | Fusible with neutral |
| Fuse class provision | Class H fuses |
| Enclosure | NEMA 3R, painted galvanized steel |
| Certifications | UL Listed |
| Source | Eaton Specification Sheet for this catalog number (retrieved Oct 8, 2026) |
What You May Also Need
Usually required
- Correctly sized conductors and overcurrent protection for the load (provide fuses for fusible models; provide upstream protection for non-fusible models).
- Lockout/tagout hardware as required by the job.
May be required
- Disconnects & Breakers: Matching Eaton Type BR breakers or related disconnects for the same project.
Optional upgrades
- Enclosures, Electrical & Safety: Outdoor enclosures and related balance-of-system hardware.
Check current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.
Important Considerations
- Select fuse ampacity and type per the load and Eaton fuse tables. Eaton notes that maximum horsepower ratings apply only when dual-element fuses are used — this listing does not state a horsepower rating.
- Confirm wire sizing, grounding, and enclosure clearances with the installation instructions.
- General-duty switches are for lighter-duty residential and light commercial use. Confirm suitability for the application against Eaton documentation.
- Professional installation required. Follow Eaton instructions and the NEC.