24VDC Electric Fire Bell
The bell remains the most commonly used alarm for fire evacuation system, for wall applications, indoors.
They are designed to be used in 24 volt DC systems.
Wiring
The system designer must make sure that the total current drawn by the devices on the loop does not exceed the
current capability of the panel supply, and that the last device on the circuit is operated within its rated voltage.
When calculating the voltage available to the last device, it is necessary to consider the voltage drop due to the
resistance of the wire. The thicker the wire, the smaller the voltage drops. Wire resistance tables can be obtained from
electrical handbooks.
Specifications
Voltage ranges: 20vdc to 28vdc (Nonp
olarity)
Power and current consumption: 1W, 38ma@24vdc(maximum)
Number of standard: EN54-3
Sound levelï¼?80dBï¼?Aï¼?@1M (minimum)
Service Use: Fire alarm, general signaling, burglar alarm
Environment type: TypeA(indoor)
Input terminal Wire Gauge: 0.28 mm 2 to 1.5 mm 2
Operating Temp.: -10â?? to +55â??
Operating Humidity Range: 10% to 93% Relative Humidity ( Non-condensing)
Material of cover:Aluminum
Dimension: 150mmÃ?50mmï¼?D*H) (Without bracket)
Weight: Net Weight 342g, Gross Weight 395g
Product Overview The ignition point of a fire inside the electric panel is mostly the part where the terminal block is fastened, so in order for initial fire extinguishing, the solution should be closely installed to the part where the terminal block is fastened. In the case of a small electric panel, a complete initial fire extinguishing is expected for fires occurring inside the electric panel by attaching the SFEX Pad to the top surface of the electric panel. Product Feature It has an excellent performance in the initial fire suppression as it can be installed near the ignition point as a flexible rope type. It uses a stand-alone method based on polymer chemistry so that it does not cause malfunctions and maintenance costs. The thermo-responsive Granule composed of KNO3 and subsidiary catalysts It does not affect the peripherals after the fire goes out. Function of SFEX Granule = fire extinguishing agent storage tank + temperature sensor + nozzle function Fire extinguishing method : Suffocation + subsidiary catalyst Example of Installation 1 : SFEX Line - If ducts exist Installing the SFEX Line horizontally or vertically in the ducts closest to the expected ignition points It can be installed without damaging the panel Example of Installation 2 : SFEX Line - If ducts do not exist Installing the SFEX Line horizontally or vertically, close to the expected ignition points of the Electric panel Example of Installation 2 : SFEX Pad - Small Electric Panel Simply attach it to the top inside the Electric panel.
Product Name: Wireless Service Bell S1 Item Number: S1 Dimension: 260 (L) * 165 (W) * 40(H) (mm) Weight: 495g Power Cable: 1.5M Buttons Servicing Buttons x 32 LED Power Indicator Message Indicator Table Indicator x 32.
Plastic/rubber 18í-6cm Packing in an opp 600pcs /ctn 63X41X83cm N.W./G.W.:17/20kgs.
32 table indicator panal with led flash light. 32 table calling butten with table stand. Power supplay unit. Weight : 2.5 kg (one set )
Supplier: 1. lighting products:
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Copper Singing Bell
220-240v dual
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