LiftMaster SL585151U Slide Gate Opener 1 1/2 HP Dual Voltage Phase (115V/208V/230V) DUAL VOLTAGE CONNECTIONS Increase flexibility by enabling the installer to select the required voltage, within phase, to meet job-site requirements. Voltage is selectable within phases at the time of installation with the placement of a connector. Single Phase: 115V, 208V and 230V. 3 Phase: 208V, 230V and 460V. 3 Phase: 575V is a discrete model without field-selectable voltage. Includes factory installed heater. ATTENTION BUYERS:  Please provide a reliable phone number so the shipping company can contact you if needed. If not provided, your item could be delayed or even returned.  Upon Receipt/Delivery Of This Product, Do Not Sign For Any Item Until You Have Thoroughly Inspected The Shipment For Any Kind Of Damages. Seller Is Not Responsible For Any Damaged Shipment That Has Not Been Signed & Reported As "Damaged Upon Arrival. Please Contact Us If You Have Any Questions Or Concerns. MAXIMUM RUN TIMER - Protects against damage to the gate and operator by limiting the units runtime to 120 seconds. EXTERNAL ALARM RESET BUTTON - Allows for quick reset of the gate operator when the alarm has been activated. ADJUSTABLE FRICTION CLUTCH - Helps to protect gate and operator from damage should the door meet an obstruction. ANTI-TAILGATE - Prevents unauthorized access. Gate will pause when closing as vehicle pulls onto interrupt loop or breaks photo beam. Once vehicle backs up, gate will continue to close. QUICK CLOSE - Closes the gate immediately after a vehicle pulls off the interrupt loop. CUSTOMERS OUTSIDE THE CONTINENTAL USA MUST CONTACT US FOR A FREIGHT QUOTE PRIOR TO MAKING A PURCHASE. CONTINENTAL USA SHIPPING PRICES DO NOT APPLY TO PUERTO RICO , ALASKA, GUAM, CANADA & INTERNATIONAL.