Selecting the right 2/0 SER copper service entrance cable is essential for safe and reliable power distribution in American homes. This guide highlights five top options, focusing on common lengths and configurations like 2/0-2/0-2/0-1 and 1/0-1/0-1/0-2, to help you compare features, thickness, and conductors. Each product is evaluated on practical details such as outside diameter, conductor composition, and suitability for 600V service. Use the buying guide to match the cable to your service panel and local code requirements.
| Product | Brand | Length | Conductor Configuration | Notes |
|---|---|---|---|---|
| Nassau Electrical Supply 50′ 2/0-2/0-2/0-1 SER Copper Service Entrance Cable | Nassau Electrical Supply | 50 ft | 2/0-2/0-2/0-1 | Phase Conductors: 19; Nominal OD: 1332 mils |
| Nassau Electrical Supply 70′ 2/0-2/0-2/0-1 SER Copper Service Entrance Cable | Nassau Electrical Supply | 70 ft | 2/0-2/0-2/0-1 | Phase Conductors: 19; Nominal OD: 1332 mils |
| Nassau Electrical Supply 40′ 2/0-2/0-2/0-1 SER Copper Service Entrance Cable | Nassau Electrical Supply | 40 ft | 2/0-2/0-2/0-1 | Phase Conductors: 19; Nominal OD: 1332 mils |
| Nassau Electrical Supply 1/0-1/0-1/0-2 SER Copper Service Entrance Cable (50FT) 600V | Nassau Electrical Supply | 50 ft | 1/0-1/0-1/0-2 | Outside Diameter: 1235 mils; Conductors: Annealed Soft Copper |
| Wirenco 2-2-2-4 SER Copper Service Entrance Cable (50 Foot Cut) | Wirenco | 50 ft | 2-2-2-4 | Three #2 AWG conductors with one #4 AWG ground; OD 0.970 inches |
The following sections provide detailed product insights. Each option is presented with a concise overview, image, and the listed features to support an informed purchase decision for residential electrical installations.
Nassau 50′ 2/0-2/0-2/0-1 SER Copper Cable
The Nassau Electrical Supply 50′ SER cable uses a 2/0-2/0-2/0-1 configuration, suitable for typical residential service runs. It features 19 phase conductors and a nominal outer diameter of 1332 mils, balancing flexibility with the need for robust power delivery. This length suits mid-sized homes or sections of longer runs where a single reel helps manage installation efficiency and splicing fewer pieces.
Nassau 70′ 2/0-2/0-2/0-1 SER Copper Cable
Designed for longer service runs, the Nassau 70′ SER cable maintains the established 2/0-2/0-2/0-1 conductor layout. With 19 phase conductors and the same 1332 mil outer diameter, this length provides flexibility for routing and protection in larger homes or complex layouts. It preserves consistent electrical characteristics across extended runs and minimizes the number of splices required.
Nassau 40′ 2/0-2/0-2/0-1 SER Cable (40FT)
This 40-foot Nassau SER option offers the same conductor configuration and outer diameter as other 2/0 SER cables, making it a practical choice for shorter service runs or spaces with tighter routing constraints. It helps ensure consistent voltage delivery to the main service panel and downstream distribution without compromising safety margins or code compliance.
Nassau 1/0-1/0-1/0-2 SER Cable (50FT) 600V
The Nassau 1/0-1/0-1/0-2 SER configuration expands the conductor options for mixed-phase or multi-wire branch circuits, with an outside diameter of 1235 mils and annealed soft copper. This 50-foot length is suitable for certain service panels requiring a slightly different conductor count while maintaining strong resistance to mechanical stress during installation.
Wirenco 2-2-2-4 SER Copper Service Entrance Cable (50 Foot Cut)
Wirenco’s 2-2-2-4 SER cable uses three #2 AWG conductors plus a #4 AWG ground, a common configuration for residential service installations that require robust grounding alongside ample conductor cross-sections. With a 50-foot cut, this option provides a compact, manageable reel for standard home service runs, and an outer diameter of 0.970 inches aids in fitting through conduit or protection channels.
Nassau 1/0-1/0-1/0-2 SER Cable (100FT) 600V
The 100-foot Nassau SER option with 1/0-1/0-1/0-2 conductors supports long service routes while maintaining a compact 1235 mil outer diameter. This length is suitable for homes with extended runs from the utility meter to the service panel, reducing the need for connections and ensuring consistent electrical performance across the run.
Buying Guide
Key purchase considerations help ensure the chosen 2/0 SER copper service entrance cable meets safety standards and installation needs:
- Conductor configuration: Match the number and size of conductors (for example, 2/0-2/0-2/0-1 or 1/0-1/0-1/0-2) to your service panel requirements and local code.
- Outside diameter: Ensure the cable’s nominal OD fits through conduits, clamps, and panel entries without forcing or damage.
- Voltage rating: Most SER cables used for residential service are rated for 600V; verify compatibility with your system.
- Conductor material: Annealed soft copper provides good flexibility and conductivity, aiding install ease and long-term reliability.
- Length considerations: Choose lengths that minimize splices and waste while accommodating future expansions or re-routing.
- Grounding and safety: Some configurations include a dedicated ground conductor; confirm grounding requirements per NEC and local codes.
- Brand and warranty: Reputable brands often offer consistent quality and support; review warranty terms and availability of replacements.
When planning an upgrade, consult a licensed electrician to assess panel capacity, local codes, and routing paths. The listed options cover common residential scenarios, from short runs to extended service routes, enabling a practical balance between physical fit and electrical performance.