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Black 15ft SJT extension cord with NEMA 5-20P plug and 5-20R receptacle

Cable Leader

Cable Leader PW143-1215 15ft 12 AWG 20A 125V NEMA 5-20P to 5-20R Power Extension Cord

SKU CH-B07Q-363RD

A 15 ft, 12 AWG indoor extension cord with NEMA 5-20P to 5-20R connectors rated for 20 A at 125 V, UL listed and CSA certified

  • Key featuresThis 15 ft power extension cord is made by Cable Leader and
  • Reach wall outlets from 15 ft away with NEMA 5-20P to 5-20R connectors
  • Handle 20 A loads using 12 AWG SJT copper conductors
  • Stay safe with fully grounded 3-wire design and molded strain relief
  • Use indoors in offices or workshops thanks to SJT jacket rating
  • Trust UL Listed and CSA certified safety with file E210037

15 ft 12 AWG 5-20P to 5-20R Extension

This 15 ft power extension cord connects a NEMA 5-20P plug to a NEMA 5-20R receptacle. The 12 AWG SJT cable is rated for 20 A at 125 V. It is built for indoor use with computers, monitors, appliances and shop equipment. Buyers needing a different connector style or an outdoor-rated cable should look elsewhere.

UL Listed Indoor Thermal Safety

The heavy-duty SJT jacket provides heat-resistant PVC protection with a flame-retardant coating. Molded plugs and strain relief maintain a fully grounded three-wire path under continuous 20 A loads. The cord is UL Listed and CSA certified to file E210037 for indoor environments only.

T-Blade Connectors With Strain Relief

The male 5-20P and female 5-20R ends use a 20 A T-blade straight-blade configuration. Molded strain relief at both ends reduces cable fatigue at the connection points. The 15 ft length suits indoor workstations, labs and workshops where the outlet is beyond the reach of the device cord.

How it compares

Measured against everything we stock in AC Extension Cords, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 78% of the 864 comparable items (median $15.99).

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Specifications

Product
Brand nameCable Leader
Model namePW143-1215

Questions about this item

How do I connect the NEMA 5-20P male plug and 5-20R female receptacle, and what step is often missed?

Align the T-blade prongs with the matching slots on the 5-20R outlet, push fully until the molded body seats, and verify the ground pin engages; the step often missed is confirming the strain-relief collar sits flush so the cord cannot pull loose.

What maintenance or replacement will the 12 AWG SJT cord need over time?

Inspect the PVC sheath and flame-retardant coating periodically for cuts, abrasion or heat discoloration; replace the cord if the jacket is damaged, the blades are bent, or the ground continuity is lost.

What limit appears first when the cord runs at 20 A / 125 V continuously?

The 12 AWG copper conductors reach their ampacity ceiling first; sustained 20 A load will warm the SJT jacket to its rated temperature limit before any other component fails.

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