Finding the right service entrance cable (SER) for a 100 amp service involves balancing voltage rating, conductor material, insulation, and installation environment. The following selections highlight common aluminum and copper SER options, including direct burial and above-ground ratings. This guide compares length, conductor size, and suitability for wet or dry locations to help you choose the best fit for residential or small commercial projects.
| Product | Conductor Type | Conductor Size (AWG) | Length | Installation |
|---|---|---|---|---|
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (50FT Cut) | Aluminum | 2-2-2-4 | 50 ft | Above Ground |
| FairySandy 50′ 1-1-1-3 SER Aluminum Service Entrance Cable | Aluminum | 1-1-1-3 | 50 ft | Underground/Direct Burial |
| Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (100FT Cut) | Aluminum | 2-2-2-4 | 100 ft | Above Ground |
| NASSAU ELECTRICAL SUPPLY 2-2-2-4 SER Aluminum Service Entrance Cable (100FT) | Aluminum | 2-2-2-4 | 100 ft | Direct Burial/Underground |
| FairySandy 75′ 1-1-1-3 SER Aluminum Service Entrance Cable | Aluminum | 1-1-1-3 | 75 ft | Underground/Direct Burial |
Note: The table above summarizes representative options for 100 amp SER installations. Always verify local code requirements and consult a licensed electrician for your specific installation.
Wirenco 2-2-2-4 SER Aluminum 50FT
Product: Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (50FT Cut). Brand: Wirenco. This above-ground SER cable is rated for 600 volts and 100 amps, suitable for wet and dry locations. The 2-2-2-4 configuration provides four conductors, including a ground, for standard 100 amp service needs. Use for residential or light commercial applications where above-ground routing is feasible. The insulation and jacket are designed to withstand outdoor exposure and typical job-site conditions.
FairySandy 50′ 1-1-1-3 SER Aluminum Cable
Product: FairySandy 50′ 1-1-1-3 SER Aluminum Service Entrance Cable. This 1-1-1-3 aluminum direct burial wire features XHHW-2 insulation with a gray PVC jacket, rated for 600V and commonly used in 100 amp service installations. The set includes three insulated conductors and a bare ground conductor, designed for underground or direct burial use in residential contexts such as mobile homes or other non-permanent structures. The 50-foot length supports flexible routing in yards or along foundation walls.
Wirenco 2-2-2-4 SER Aluminum 100FT
Product: Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (100FT Cut). This option mirrors the 50 ft variant with extended length for longer runs. It remains rated for 600 volts and 100 amps, suitable for above-ground installations. The 2-2-2-4 conductor arrangement includes necessary protection for wet and dry locations, making it a versatile choice for mid-to-long service runs where direct burial is not required.
NASSAU ELECTRICAL SUPPLY 2-2-2-4 SER Aluminum 100FT
Product: Nassau Electrical Supply 2-2-2-4 SER Aluminum Service Entrance Cable (100FT). This option uses AA-8000 series aluminum conductors, offering good conductivity with a 600V rating. It features a 2-2-2-4 conductor count and a 4-wire configuration, making it suitable for standard 100 amp residential service installations where aluminum conductors are preferred for cost or availability. The 100-foot length supports longer routing or multiple entry points in a property.
Wirenco 2-2-2-4 SER Aluminum 75FT
Product: Wirenco 2-2-2-4 SER Aluminum Service Entrance Cable (75FT Cut). This variant provides the same 600V, 100A rating with above-ground suitability in a mid-length option. It is designed for reliable performance in mixed environments, including wet and dry locations. The 75-foot length strikes a balance between shorter runs and the flexibility needed for complex layouts around a property.
FairySandy 75′ 1-1-1-3 SER Aluminum Cable
Product: FairySandy 75′ 1-1-1-3 SER Aluminum Service Entrance Cable. This is a direct burial-rated cable with XHHW-2 insulation and a gray PVC jacket, rated for 600V and commonly used for 100 amp services. The 75-foot length provides extended reach for underground installations and long outdoor runs, making it a practical choice for mobile homes or longer service routes. The assembly includes three insulated conductors and a bare ground conductor in a direct burial configuration.
Buying Guide: Key Purchase Considerations
When selecting SER cable for a 100 amp service, consider the following factors to compare options objectively:
- Conductor Material: Aluminum SER cables are typically less expensive than copper and are common for 100 amp services, but copper variants exist and offer different flexibilities and temperature ratings.
- Conductor Size and Configuration: Common configurations include 2-2-2-4 and 1-1-1-3. Ensure the size matches your service panel and local code requirements. A 2-2-2-4 layout includes a ground conductor suitable for many residential installations.
- Voltage Rating: Verify a minimum of 600V rating to handle standard residential service conditions.
- Installation Environment: Above-ground vs. underground (direct burial) impacts jacket type, insulation material (XHHW-2 vs. other), and burial protection needs. Wet and dry location ratings influence where the cable can be installed.
- Length and Routing: Choose lengths that minimize splices and allow for a clean, code-compliant route from the service entry to the panel. Longer runs may require additional protection or support hardware.
- Direct Burial Capabilities: If burial is planned, confirm the cable is rated for underground use and that trenching and moisture protection meet local regulations.
- Code Compliance: SER installations should align with the National Electrical Code (NEC) and any local amendments. Some jurisdictions require specific jackets or conductor materials for outdoor or underground use.
- Availability and Lead Time: Consider current stock, shipping times, and the need for on-site coordination with a licensed electrician to verify compatibility with the service panel and grounding requirements.
These perspectives help balance cost, durability, and ease of installation. Aluminum SER offers a cost-effective option for many 100 amp services, while copper SER may be preferred when lower resistance or long-term stability is prioritized. Always prioritize safety and professional guidance for electrical installations.