High-Traffic DC Barrier Gate Operator with Aluminum Cabinet and Battery Backup The LiftMaster MATDCBB3 is a high-traffic DC barrier gate operator for commercial and industrial vehicular access points. It runs on a 24VDC, 1/2 HP equivalent continuous-duty motor with a 60:1 worm gear reducer in a synthetic oil bath, opening and closing in 2.5 seconds and rated for up to 6,000 cycles per day. The MAT designation indicates a full aluminum cabinet. Two 12V 7AH batteries are included for backup operation during power outages. The MATDCBB3 is UL listed under UL 325 and UL 991 for Class I, II, III, and IV vehicular gate applications. The controller includes 8 inputs, a built-in 120V duplex outlet, and a Security+ 2.0 3-channel receiver that handles up to 90 remotes out of the box. Magnetic limit sensors monitor arm position for high-cycle durability, and on-board surge suppression provides industrial-grade lightning protection. The SAMS feature coordinates the barrier with a slide or swing gate operator to sequence traffic flow. The operator can be converted to run on solar power in place of AC input, requiring panels, a 24VDC charge regulator, and batteries sourced by a professional solar installer. Key Features UL listed under UL 325 and UL 991 for Class I, II, III, and IV vehicular gate applications 24VDC, 1/2 HP equivalent continuous-duty motor; 2.5-second speed rated for 6,000 cycles per day Full aluminum cabinet with powder-coated 1/4 in. aluminum alloy chassis Two 12V 7AH batteries included for operation during power outages Security+ 2.0 3-channel receiver included; handles up to 90 remotes, unlimited with 811LMX/813LMX SAMS coordinates barrier with a slide or swing gate operator for sequenced traffic management Built-in 120V duplex outlet and universal controller with 8 inputs Magnetic limit sensors and on-board industrial surge and lightning protection Fire department compliance auto-opens gate on AC power loss or battery depletion; anti-tailgate included Technical Specifications Part Number: MATDCBB3 Motor: 24VDC, 1/2 HP equivalent, continuous duty Gear Reduction: 60:1 worm gear reducer in synthetic oil bath Operating Speed: 2.5 seconds to open; 2.5 seconds to close Max Daily Cycles: 6,000 Input Power: 120VAC / 230VAC single phase Accessory Power Output: 24VDC, 500mA Battery Backup: 2x 12V 7AH (included) Limit Setting: Magnetic Enclosure: Full aluminum cabinet (MAT) Chassis: Powder-coated 1/4 in. aluminum alloy Dimensions: 42.0 in H x 13.5 in W Weight: 113 lbs (without arm) Operating Temperature: -4°F to 140°F without heater; -40°F to 140°F with optional heater (UN201) UL Listing: UL listed, UL 325 and UL 991, Class I, II, III, and IV Warranty: 2 years electronics and mechanical; 10 years frame and cover Manufacturer: LiftMaster / The Chamberlain Group LLC Condition: New Compatible Arms (Sold Separately) MALED12 — 12 ft LED arm MALED17 — 17 ft LED arm (requires MALEDCW counterweight) MA024-10RDOT — 10 ft articulating aluminum arm, red/white stripe 50-ALMARMDOT — 15 ft aluminum arm, red/white stripe MA116RDOT — 17 ft aluminum arm, red/white stripe (requires MA117 counterweight) MA034RDOT — 9 ft articulating PVC arm, red/white stripe Conclusion The MATDCBB3 is rated for 6,000 cycles per day with a 10-year frame warranty, making it a dependable choice for high-volume access points where durability matters. The optional heater (UN201) extends the operating range to -40°F. The SAMS feature requires the K1 relay option (SAMSKIT, sold separately). Cut Sheet Installation / User Manual (Old Version)
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