SEU Cable Buyers in Pennsylvania

SEU cable is the three-wire service entrance assembly, with two insulated conductors and a bare neutral wrapped concentrically around them under a jacket. The bare conductor serves as the neutral and, at the service, as the grounded conductor bonded to the enclosure. It is the classic 120/240 V single phase service drop cable, and a great deal of it is still installed on houses, garages and small shops across Pennsylvania. The assembly is compact, sunlight resistant and made to be installed on a mast or a wall.

Because SEU serves a narrower purpose than SER, the surplus supply is smaller and comes from specific places: a service upgrade where the utility required a four-wire assembly instead, a coil left from a garage or addition, or a contractor cleaning out a truck at the end of a season. Most of it is aluminum in 2/0, 4/0 and 350 kcmil. Lengths of 50 ft or more are the ones worth a second look, since shorter pieces rarely suit a service.

Construction	Two insulated conductors with a bare neutral conductor wrapped concentrically around them under an overall jacket
Conductors	Aluminum from 8 AWG through 500 kcmil; copper versions in smaller sizes
Insulation	XHHW-2 or USE-2 rated conductors, sunlight resistant jacket
Voltage and temperature	600 V; typically 90 C dry and 75 C wet
Standards	UL 854 and NEC Article 338, Type SE style U

What SEU cable is

The U in SEU stands for unarmored, and the construction is three conductors rather than four. Two insulated legs carry the ungrounded conductors, and a bare conductor spirals around them as the neutral. At the service equipment that bare conductor lands on the neutral bar and is bonded, which is why SEU is limited to the service point rather than subpanel feeders.

That is the practical difference from SER. SER adds an insulated neutral and a separate ground so the neutral can float at a subpanel. SEU has no separate ground, so using it downstream of the service creates a hazard and violates the code. Buyers know this, which is why SEU sells to a smaller set of applications.

• Three conductors with a bare concentric neutral
• Service entrance use only
• Often supplied with a reduced size neutral
• Not a substitute for four-wire SER

Where Pennsylvania sellers use SEU cable

Overhead service replacements on houses and small commercial buildings are the main use. A mast riser from the weatherhead to the meter socket is usually SEU, and the size is set by the service rating, commonly 2/0 for 200 A and 4/0 for a larger service. Coils left from that work are the most frequent surplus item in this category.

Rural properties add garages, wells and outbuildings where a simple 120/240 V service is fed from a meter on a pole. Contractors working in older boroughs also find SEU during service upgrades when the existing riser is reused. When a utility requires a four-wire assembly, the three-wire coil that was already purchased often becomes surplus.

What makes SEU cable resellable

Size dominates. 2/0 and 4/0 aluminum SEU are the sizes a service electrician uses every week, and a sealed coil in either size moves quickly. 350 kcmil and larger serve 400 A and heavy commercial services and are worth more per foot but take longer to place. Small sizes such as 6 and 8 AWG are used for garages and outbuildings.

Copper SEU is uncommon and priced on copper content plus a premium if the jacket and print are clean. Because the neutral is bare and visible, condition is easy to judge: bright aluminum under the jacket suggests good storage, while heavy white oxide and water staining suggest a coil that sat outside. That visual check drives the quote more than the label does.

• 2/0 and 4/0 aluminum coils
• 350 kcmil and larger for heavy services
• Copper SEU coils from 2 AWG through 1/0
• Sealed coils with readable print

Condition, storage and identification

The bare concentric neutral is the exposed part, and it tells the story. Outdoor storage leaves oxide on the strands and grit between the wraps, and a coil that has been dragged will have flattened or broken strands in the outer layer. Broken strands reduce the neutral capacity, so a buyer will want to see the whole coil rather than one end.

Print on the jacket usually identifies the type, the phase size and the neutral size, which are often different. Reel tags add footage. Where the print is gone, the two insulated conductors plus a bare wrap confirm SEU, and the conductor diameter gives a good estimate of size.

What to send for a quote

Send a photo of the jacket print, the coil tag and the full coil so the condition of the bare neutral is visible. Tell us the size, the metal and the approximate length. If the coil has been outdoors, say so, because that affects both the quote and how we plan the pickup.

We review the inventory, return a quote and schedule pickup when it is accepted. A full coil of 4/0 SEU is heavy, so let us know whether it is banded, whether it is on a pallet and what equipment is available to load it.

• Jacket print showing phase and neutral sizes
• Coil tag or footage note
• Photo of the bare neutral along the coil
• Aluminum or copper
• Indoor or outdoor storage and loading gear

What we buy in this category

• 2/0 aluminum SEU service risers
• 4/0 SEU in full and partial coils
• 350 kcmil and larger three-wire service cable
• Copper SEU in 1/0 and 2/0 for service work
• Leftover coils from service upgrade work
• Garage and outbuilding service cable
• Coils with legible jacket print and tags

Selling seu cable in Pennsylvania

Reels of seu cable turn up from Philadelphia and the southeastern counties through the Lehigh Valley, and from Pittsburgh and the Mon Valley across to Harrisburg, Lancaster and York. Send the city or township with the photographs so pickup can be planned realistically.

• Philadelphia
• Norristown
• King of Prussia
• Pottstown
• Lansdale
• Abington
• Cheltenham
• Lower Merion