Specification Brand : Mallory Sonalert Products BulletPoint : Price For: Each Transducer Function: Alarm Tones: Continuous Supply Voltage Min: 1.5V Supply Voltage Max: 30V Operating Current Max: 12mA Sound Level SPL: 80dB Resonant Frequency: 3kHz External Diameter: 24mm RoHS Compliant: Yes BulletPoint1 : Descriptions:This is a mini split base current transformer; it's the smallest one compared to the similar products (output 100MA). Fully enclosed, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability. Used for energy meter in special; AC 220v, 380v power supply can both be applied BulletPoint2 : Model: PZCT-02 Environment temperature: -40℃~+85℃ Relative humidity: ≤ 90%(40℃) Working frequency: 50Hz~60Hz Insulation endurance grade: B grade (130℃) Insulation resistance: >1000MΩ normally Dielectric strength: can afford power frequency 1000V/1minute Flame resistance: Conform to UL94-Vo grade Internal resistance: 10Ω Measuring range: 0-100A BulletPoint3 : Application:1. The current transformer is used for energy meter in special; AC 220v, 380v power supply can both be applied.2. When you fix the energy meter, you don't need to cut off the power if you use this product. BulletPoint4 : Note:1. The CT primary should be connected in series with the test current loop, the secondary should be as work in the short-circuit state.2. The secondary circuit is not allowed open circuit, so please do not install fuse BulletPoint5 : Features:This is a mini split base current transformer; it's the smallest one compared to the similar products (output 100MA). The diameter of inner hole is 16mm, the accuracy is ≤0.5 grade,Using snap joint structure, it can be fixed to the cable directly through nylon ties.Built-in input coil; small and light, easy to install.Fully enclosed, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability Color : Multiple colors CurrentRating : 100 amps ExternallyAssignedProductIdentifier : 9497371132309 ExternallyAssignedProductIdentifier1 : 0013962259249 ExternallyAssignedProductIdentifier2 : 013962259249 FinishType : Finish IncludedComponents : inc ItemName : Mallory Sonalert Transducer, Piezo, 3Khz, 80Db, 30Vdc - PK-21N30PQ ItemPackageDimensions_Height : 5.08 centimeters ItemPackageDimensions_Length : 22.86 centimeters ItemPackageDimensions_Width : 15.24 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : piezo-transducers Manufacturer : Mallory Sonalert Material : copper MaximumFrequency : 60 hertz MinimumFrequency : 50 hertz ModelNumber : PK-21N30PQ NumberOfItems : 1 PartNumber : PK-21N30PQ PowerSourceType : Corded Electric ProductDescription : TRANSDUCER, PIEZO, 3KHZ, 80DB, 30VDC; Transducer Function:Alarm; Tones:Continuous; Supply Voltage Min:1.5V; Supply Voltage Max:30V; Operating Current Max:12mA; Sound Level SPL:80dB; Resonant Frequency:3kHz; Product Range:- RoHS Compliant: Yes ProductSiteLaunchDate : 2013-06-23T21:27:44.654Z Size : Small Style : Wire Collated UnitCount : 1 UnspscCode : 31160000