Sersuamr ser250-250-250-250-3/0mr Ser Aluminum Cable

Product Description

The SERSUAMR ser250-250-250-250-3/0mr is an aluminum round service entrance cable sold by the cut-to-length foot. SER cable is a multi-conductor assembly used to bring electrical service from a utility meter or service panel to a load-center or sub-panel. This configuration carries three 250 kcmil phase conductors plus a 3/0 AWG neutral, making it suited for high-ampacity residential or light commercial service entrance applications. Licensed electricians install this cable during new construction or service upgrades. The aluminum conductors reduce cost and weight compared to copper while maintaining adequate conductivity for large-feeder runs.

This cable is appropriate for residential service entrance runs, sub-panel feeders, and metered distribution applications where a 250-250-250-3/0 aluminum conductor configuration is required. Cut-to-length purchasing allows contractors to order only what the job requires, minimizing waste on large or oddly sized runs. It is typically installed in conduit or as a direct service entrance application per local electrical code requirements.

Key Features

• Three 250 kcmil aluminum phase conductors plus 3/0 AWG aluminum neutral
• Round SER construction for consistent conduit fill and neat routing
• Aluminum conductors provide weight and cost advantages on long feeder runs
• Cut-to-length format reduces material waste on custom service runs
• Suited for high-ampacity residential and light commercial service entrance work

Compatibility

Designed as an OEM-style replacement and standard-supply cable for residential and light commercial service entrance and feeder installations requiring a 250-250-250-3/0 aluminum round SER configuration.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the upstream service disconnect and verify the circuit is de-energized with a calibrated meter before handling conductors. Follow NEC Article 338 requirements for service entrance cable installation, including approved termination hardware rated for aluminum conductors. Use only connectors and lugs listed for aluminum wire to prevent connection failures from galvanic incompatibility.

Technical Specifications

• Conductor Configuration: 250-250-250-3/0 AWG
• Conductor Material: Aluminum
• Cable Type: SER Round Service Entrance
• Sold As: Cut to Length
• UPC: 980120S0205

Standard Information

• Brand: SERSUAMR
• Manufacturer Part Number: ser250-250-250-250-3/0mr