Specification Amperage : 7.7 Brand : Packard BulletPoint : PM42440 BulletPoint1 : Universal input 90~305VAC BulletPoint10 : Welcome to visit, the main picture above the product specifications, please read carefully, have any questions can consult us, we will answer for you.(If you need to purchase more quantities, please contact customer service.) BulletPoint2 : All-in-one function with Power supply,DC-UPS, battery charger and status monitoring in ONE compact unit BulletPoint3 : Signal and alarms design meet UL2524,NFPA 1221,BS EN/EN54-4 and GB17945 requirement, with adjustable parameters configurable by communication interface BulletPoint4 : Load-dependent high speed battery charging BulletPoint5 : Built-in MODBus protocol BulletPoint6 : Protections: Short circuit / Overload / Over voltage / Over temperature(auto derating) /Battery reverse polarity (No damage)/Battery cut off BulletPoint7 : Battery low protection / Battery reverse polarity protection BulletPoint8 : -30~+70℃ wide operating temperature BulletPoint9 : Cooling by free air convection Color : No Color CurrentRating : 31.2 amps ExternallyAssignedProductIdentifier : 4711287433356 ExternallyAssignedProductIdentifier1 : 840899100944 ExternallyAssignedProductIdentifier2 : 0840899100944 IncludedComponents : producer Packard Foot Mount Transformer, 120/208/240V, Output 40V, PF42440 ItemName : VALCOM VC-VMT-1 Matching Transformer Line Inpu by Valcom ItemPackageDimensions_Height : 16.51 centimeters ItemPackageDimensions_Length : 6.35 centimeters ItemPackageDimensions_Width : 11.43 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : isolation-transformers Manufacturer : Valcom Material : Steel MaximumFrequency : 60 hertz ModelNumber : na NumberOfBoxes : 1 NumberOfItems : 100 PackageLevel : unit PartNumber : na ProductDescription : VALCOM VC-VMT-1 Matching Transformer Line Inpu by Valcom ProductSiteLaunchDate : 2015-07-18T18:55:32.747Z Size : One Size SpecificationMet : NEMA SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 Voltage : 24 volts