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SSRL240 andSSRL660 Series

SSRL240 andSSRL660 Series

分  类：压力传感器

品  牌：欧米茄

厂  商：Omega工业测量（中国）

型  号：SSRL240 andSSRL660 Series

相关行业：

发布时间：2019-12-19 16:43 浏览人数：人

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    参数
    包装
    • Solid State Relays SSR Rarted to 100 Amps
    • Multi-Million Cycle Life
    • Compatible with Temperature Controllers
    • Solid-State, SCR Design
    • Zero Voltage Switching
    • Control ac Lines to 660 Vac
    • AC and DC Control Signal Models
    • LED Input Status Indicator

      • The Omega's SSRL series of solid state relays are used to control largeresistance heaters in conjunction with temperature controllers. Solidstate relays are SPST, normally open switching devices withno moving parts, capable of millions of cycles of operation. By applying acontrol signal, an SSR switches ON the ac load current, just as themoving contacts do on a mechanical contactor. Three-phaseloads can be controlled using 2 or 3 SSR’s. Use 3 SSR’s for Y or star3-phase loads using a neutral line. Two SSR’s will control “delta” loadswith no neutral line. Three solid state relays are also used whenthere is no neutral load to provide redundancy and extra assurance ofcontrol.

      "Switching" takes place at the zero voltage crossover point of thealternating current cycle. Because of this, no appreciable electricalnoise is generated, making SSR’s ideal for environments where thereare apparatuses susceptible to RFI.

      Common Specifications
      Operating Temperature: -20 to 80°C (-5 to 175°F)
      Storage Temperature:-40 to 80°C (-40 to 175°F)
      Isolation: 4000 Vrms, input to output; 2500 Vrms input/output to ground
      Capacitance: 8 pF, input to output (max)
      Line Frequency Range: 47 to 63 Hz
      Turn-On Time: 20 ms, ac; 05 cycle, dc
      Turn-Off Time: 30 ms, ac; 05 cycle, dc

      These SSR’s are of the twin SCR type, inherently morereliable and capable of higher overloads before failure thantriacs. Heat is developed in a solid state relay due to thenominal voltage drop across the switching device. Todissipate the heat, an SSR must be mounted on a finnedheat sink or aluminum plate. An SSR should be locatedwhere the ambient temperature is relatively low, since thecurrent switching rating is lowered as the temperatureincreases. Another SSR characteristic is a small leakagecurrent across the output when the relay is open. Becauseof this, a voltage will always exist on the load sideof the device.

      In comparing SSR’s with mechanical contactors, the SSRhas a cycle life many times that of a comparably pricedcontactor. However, SSR’s are more prone to failure due tooverload and improper initial wiring. Solid state relays canfail, contact closed, on overload circuits. It is essential that aproperly rated, fast blowing I2T fuse be installed to protectthe load circuit.

      Finned heat sinks are anodized fabrications that comecomplete with tapped mounting holes and screws. Seethermal rating curves and ordering instructions for properselection.

      All SSRL series relays come with a thermally conductivepad mounted on the baseplate. This will significantlyimprove the thermal conductivity between the heat sink andSSR baseplate. It is also suggested that 10-inch-pounds oftorque be used on the SSR mounting screws.





      Output Specifications for Vac and Vdc Input Models
      Specifications10 Amp25 Amp50 Amp75 Amp100 Amp
      Max On State Current10 A25 A50 A75 A100 A
      Max On State Current100 mA
      Max 1-Cycle Surge150 A300 A750 A1000 A1200 A
      Max 1 sec Surge30 A75 A150 A225 A300 A
      12T (60 Hz), A2sec416937245850006000


      SSR240 Series Electrical Specifications
       Input-Control SignalOutput
      Model No.TypeControl
      Signal
      Voltage      		Control
      Signal
      Turn-On      		Control
      Signal
      Turn-Off      		Max
      Input
      Current      		Peak
      Voltage*
      (60 Sec. Max.)
      SSRL240AC10
      SSRL240AC25
      SSRL240AC50
      SSRL240AC75
      SSRL240AC100      		ac
      Control
      Signal      		90 to 280 Vac90 Vac10 Vac10 mA800 V
      SSRL240DC10
      SSRL240DC25
      SSRL240DC50
      SSRL240DC75
      SSRL240DC100      		dc
      Control
      Signal      		3 to 32 Vdc3 Vdc1 Vdc14 mA800 V
      SSRL660AC50
      SSRL660AC75
      SSRL660AC100      		ac
      Control
      Signal      		90 to 280 Vac90 Vac10 Vac10 mA1200 V
      SSRL660DC50
      SSRL660DC75
      SSRL660DC100      		dc
      Control
      Signal      		4 to 32 Vdc4 Vdc1 Vdc14 mA1200 V
      *Transients above table value should be suppressed.

      SSR240 Series Output-Vac Load Specifications
      Model No.Nominal
      ac Line
      Voltage      		Nominal
      Load
      Current      		Max.
      Contact
      Voltage Drop      		Max. Off-State Leakage
      (25°C max. ambient)
      120 Vac240 Vac440 Vac
      SSRL240AC10
      SSRL240AC25
      SSRL240AC50
      SSRL240AC75
      SSRL240AC100      		24 to 280 Vac10 A
      25 A
      50 A
      75 A
      100 A      		1.6 V0.1 mA0.1 mAN/A
      SSRL240DC10
      SSRL240DC25
      SSRL240DC50
      SSRL240DC75
      SSRL240DC100      		24 to 280 Vac10 A
      25 A
      50 A
      75 A
      100 A      		1.6 V0.1 mA0.1 mAN/A
      SSRL660AC50
      SSRL660AC75
      SSRL660AC100      		48 to 660 Vac50 A
      75 A
      100A      		1.6 V0.25 mA0.25 mA0.25 mA
      SSRL660DC50
      SSRL660DC75
      SSRL660DC100      		48 to 660 Vac50 A
      75 A
      100 A      		1.6 V0.25 mA0.25 mA0.25 mA

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