SE-R USE-2(UD cable URD cable)

SER Cable: Safe and Code-Compliant Residential and Commercial Wiring

In residential and commercial electrical systems across North America, selecting the right cable is essential for safety, reliability, and compliance with electrical codes.

SER cable (Service Entrance Cable, Round) is a widely used UL-listed building wire designed for service entrance, feeders, and branch circuits, delivering long-term performance and code-compliant installation.

What Is SER Cable?

SER cable is a multi-conductor, insulated copper or aluminum wire with a round jacket.

It is manufactured according to UL 44 (thermoplastic insulation) and permitted under the National Electrical Code (NEC) for residential and commercial service entrance applications.

SER is ideal for use in conduit, raceways, or direct burial applications (as allowed by code) and is commonly specified for panel feeders and branch circuits.

Key Construction Features

• Conductors: Copper or aluminum, stranded or solid

• Insulation: THHN/THWN or equivalent thermoplastic, rated 75°C–90°C

• Outer Jacket: Thermoplastic round jacket

• Voltage Rating: 600 V

• Certification: UL Listed – SER

The round jacket provides mechanical protection while maintaining flexibility for pulling into panels and conduits.

Typical Applications

SER cable is commonly used in:

• Service entrance wiring for homes and small commercial buildings

• Branch circuits and feeders

• Panelboard and subpanel connections

• Indoor and dry locations (per NEC)

• Residential and light commercial wiring

Its multi-conductor design simplifies installation by reducing the number of individual wires to pull.

Why Choose SER Cable?

1. UL & NEC Compliance

SER cable meets UL requirements and NEC standards for residential and commercial wiring.

2. Safe and Reliable

Thermoplastic insulation and round jacket protect conductors from heat, moisture, and mechanical damage.

3. Efficient Installation

Multi-conductor design reduces labor time and simplifies service entrance and panel connections.

4. Long-Term Durability

Rated for 600 V, SER cable supports safe, reliable performance for decades in residential and commercial applications.

Qingdao Cable Co., Ltd, founded in 1950. For 75 years, we've been perfecting our craft, ensuring our products stand the test of time. Quality you can count on.

More than 90% of the cables we produce have UL and CSA certification. we produced high-quality wires and cables for customers in the United States , Canada ,Singapore, Malaysia, Philippines, Middle East, such as Nokia, LG, ICI, Amphenol, TE, GE ,Valmont and Mitsubishi……

Our products include AC90, ACWU90, RW90,T90,NMD90,CIC-TC-ER, ACIC,irrigation cable, THHN, THWN, THW, XHHW, TC, MC cables, photovoltaic cables, SER and so on. We can also OEM North American wires. Customers all over the world are very appreciative of the quality of our products.