NEMA L21-30 30A 3-Phase 120/208V 3PY, 5-Wire Extension Cord Industrial High-Power Locking Extension Cord Works with a 30 Amp L21-30 Outlet, Inlet, Plugs, and Connector 30A 3-Phase 120/208V 5-Wires Industrial Rubber Extension Cord Trade Show Convention Center Stringers Streamers Extension Cord This AC WORKS brand extension cord [L2130PR] is a 30 Amp, 5-Wires industrial high-power locking extension cord. The cable is an SOOW 10/5, 30 Amp copper with 600 Volt rubber jacket which stays flexible in cold weather. This cord is popular for use with industrial and high-power equipment. Included with your purchase is a 5-year limited warranty. Note, de-rated to 27 Amps when the cable is longer than 50 ft. NEMA L21-30 30A 3-Phase 120/208V 3PY, 5-Wire Extension Cord Industrial High-Power Locking Extension Cord Works with a 30 Amp L21-30 Outlet, Inlet, Plugs, and Connector 30A 3-Phase 120/208V 5-Wires Industrial Rubber Extension Cord Trade Show Convention Center Stringers Streamers Extension Cord 5-year Limited Warranty