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電源選型推薦

整個DTU系統的電源解決方案，主要考慮到不間斷供電的問題，所以需要雙電源供電的一個供電形式，主流的供電方式一般是有兩部分組成，一部分是大功率300W或者500W的AC/DC充電電源，這個電源一般兩路輸出，一路給后級的板卡進行供電，一方面給后級的蓄電池或者是超級電容進行充電；另外的一部分就是蓄電池或者超級電容，這個主要是在市電斷電的情況下，保證整個系統的正常運行。另外，電網對于EMC方面的要求比較苛刻，特別是浪涌方面，需要完全滿足4級的要求。主電源和蓄電池都掉電時，系統掉電保持時間500mS以上。

根據上面的應用描述，我們推薦選用金升陽MBP500-2A54D54的接線式電源，它具備電池充電功能，可對48V 鉛酸電池充電；工業級工作溫度：-40℃～+70℃；2500VAC 高隔離電壓；大瞬時過功率達540W；優越的EMC性能；接線式安裝。

另外，如果鉛酸電池的電壓值為24V，還可以選用金升陽公司的MBP300-2A27D27的接線式電源，可對24V的鉛酸電池充電，穩態功率達到351W。
電源是各種電子設備必不可缺的組成部分,其性能優劣直接關系到電子設備的技術指標及能否安全可靠地工作。目前常用的直流穩壓電源按功率管的工作方式分為線性電源和開關電源兩大類。線性穩壓電源亦稱串聯調整式穩壓電源,電路技術比較成熟。具有低紋波、高穩壓性能等優點。但由于必須使用工頻變壓器,且調整管工作在線性放大區,因而體積大和重量大、效率低。開關電源調整管工作在高頻開關狀態,功率損耗小,且使用小體積的高頻變壓器替代笨重的工頻變壓器來實現電壓變換和電網隔離。
為解決傳統的PWM型變換器的上述問題,可采用諧振、準諧振、多諧振以及具軟開關的PWM型變換器。這些變換器吸收、利用了PWM型變換器中的寄生參數或外加電感、電容作為諧振參數,使變換器中的功率開關在零電壓或零電流下開通和關斷,開關兩端的電壓或經過開關的電流是正弦或半正弦波形。因此大大減少開關的瞬問損耗和開關應力以及電磁干擾和射頻干擾.使其工作頻率可進一步提高到1Mhz以上，效率達90%以上。再加上小型片狀電子元器件,包括磁性材科,例如:平板型變壓器等以及表面安裝技術以及散熱方式的改進，就使電源系列、標準化、模塊化成為現實。

SPRECHER+SCHUH/ALLEN BRADLEY KTA3-25 CAT. 140-A11 CIRCUIT BREKEAR
SPRECHER+SCHUH, KT4-C-ASA20, AUXILIARY CONTACT BLOCK, 690V, 10A, SER A
Sprecher+Schuh Zeitrelais KOP 160-D gebraucht/
Sprecher+Schuh Zeitrelais KOP 111-D gebraucht/
SPRECHER+SCHUH XXHCOMPTROL-01 F4/LA7/KTA ASSEMBLY KIT **NIB**
Sprecher+Schuh VUPE 4-4 Ground Terminal Block (Lot of 10 each)
SPRECHER+SCHUH VUET4-4 DOUBLE DECK TERMINAL BLOCK 300V 10A (LOT OF 5) ***NIB***
SPRECHER+SCHUH VU4-4 AND VUPE4-4
SPRECHER+SCHUH VAET4-4 TERMINAL BLOCK END PIECE (BAG OF 9) ***NIB***
Sprecher+Schuh Trip Indication Contact KT7-PAF1-S01/M10
Sprecher+Schuh Timing Relay KOP10 1010 1.5-30 Seconds 100-127 VAC ()
Sprecher+Schuh Thermal Overload Relay CT7-75-45
SPRECHER+SCHUH THERMAL OVERLOAD RELAY 1.6-5.0A CEP7-A32 SER B
SPRECHER+SCHUH THERMAL OVERLOAD RELAY - CT 3-12 1.6 - 2.5 AMP W/ SOCKET
SPRECHER+SCHUH THERMAL OVERLOAD RELAY - CT 3-12 1.6 - 2.5 AMP W/ SOCKET
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Sprecher+Schuh Starter CA3-9-10 Overload Range: 6-9A 120V Coil 
Sprecher+Schuh Side Mount Auxiliary Contact Block 1NO CA7-PA10 USG
SPRECHER+SCHUH S+S CONTACTOR CS7-40E-120 EQUAL TO ALLEN-BRADLEY 700-CF400D
SPRECHER+SCHUH S+S CONTACTOR CS7-31E-120 EQUAL TO ALLEN-BRADLEY 700-CF310D
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-480 EQUAL TO ALLEN-BRADLEY 100-C97B10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-277 EQUAL TO ALLEN-BRADLEY 100-C97T10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-24Z EQUAL TO ALLEN-BRADLEY 100-C97J10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-240 EQUAL TO ALLEN-BRADLEY 100-C97A10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-220W EQUAL TO ALLEN-BRADLEY 100-C97L10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-208 EQUAL TO ALLEN-BRADLEY 100-C97H10
SPRECHER+SCHUH S+S CONTACTOR CA7-97-10-120 EQUAL TO ALLEN-BRADLEY 100-C97D10
SPRECHER+SCHUH S+S CONTACTOR CA7-9-10-277 EQUAL TO ALLEN-BRADLEY 100-C09T10
SPRECHER+SCHUH S+S CONTACTOR CA7-9-10-24 EQUAL TO ALLEN-BRADLEY 100-C09J10
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-277 EQUAL TO ALLEN-BRADLEY 100-C09T01
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-240 EQUAL TO ALLEN-BRADLEY 100-C09A01
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-24 EQUAL TO ALLEN-BRADLEY 100-C09J01
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-220W EQUAL TO ALLEN-BRADLEY 100-C09L01
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-208 EQUAL TO ALLEN-BRADLEY 100-C09H01
SPRECHER+SCHUH S+S CONTACTOR CA7-9-01-120 EQUAL TO ALLEN-BRADLEY 100-C09D01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-480 EQUAL TO ALLEN-BRADLEY 100-C85B10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-277 EQUAL TO ALLEN-BRADLEY 100-C85T10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-240 EQUAL TO ALLEN-BRADLEY 100-C85A10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-24 EQUAL TO ALLEN-BRADLEY 100-C85J10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-220W EQUAL TO ALLEN-BRADLEY 100-C85L10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-208 EQUAL TO ALLEN-BRADLEY 100-C85H10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-10-120 EQUAL TO ALLEN-BRADLEY 100-C85D10
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-480 EQUAL TO ALLEN-BRADLEY 100-C85B01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-277 EQUAL TO ALLEN-BRADLEY 100-C85T01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-240 EQUAL TO ALLEN-BRADLEY 100-C85A01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-24 EQUAL TO ALLEN-BRADLEY 100-C85J01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-220W EQUAL TO ALLEN-BRADLEY 100-C85L01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-208 EQUAL TO ALLEN-BRADLEY 100-C85H01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-01-120 EQUAL TO ALLEN-BRADLEY 100-C85D01
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-480 EQUAL TO ALLEN-BRADLEY 100-C85B00
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-277 EQUAL TO ALLEN-BRADLEY 100-C85T00
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-24 EQUAL TO ALLEN-BRADLEY 100-C85J00
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-220W EQUAL TO ALLEN-BRADLEY 100-C85L00
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-208 EQUAL TO ALLEN-BRADLEY 100-C85H00
SPRECHER+SCHUH S+S CONTACTOR CA7-85-00-120 EQUAL TO ALLEN-BRADLEY 100-C85D00
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-480 EQUAL TO ALLEN-BRADLEY 100-C72B10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-277 EQUAL TO ALLEN-BRADLEY 100-C72T10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-240 EQUAL TO ALLEN-BRADLEY 100-C72A10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-24 EQUAL TO ALLEN-BRADLEY 100-C72J10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-220W EQUAL TO ALLEN-BRADLEY 100-C72L10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-208 EQUAL TO ALLEN-BRADLEY 100-C72H10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-10-120 EQUAL TO ALLEN-BRADLEY 100-C72D10
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-480 EQUAL TO ALLEN-BRADLEY 100-C72B01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-277 EQUAL TO ALLEN-BRADLEY 100-C72T01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-240 EQUAL TO ALLEN-BRADLEY 100-C72A01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-24 EQUAL TO ALLEN-BRADLEY 100-C72J01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-220W EQUAL TO ALLEN-BRADLEY 100-C72L01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-208 EQUAL TO ALLEN-BRADLEY 100-C72H01
SPRECHER+SCHUH S+S CONTACTOR CA7-72-01-120 EQUAL TO ALLEN-BRADLEY 100-C72D01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-480 EQUAL TO ALLEN-BRADLEY 100-C60B10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-24Z EQUAL TO ALLEN-BRADLEY 100-C60J10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-240 EQUAL TO ALLEN-BRADLEY 100-C60A10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-220W EQUAL TO ALLEN-BRADLEY 100-C60L10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-208 EQUAL TO ALLEN-BRADLEY 100-C60H10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-10-120 EQUAL TO ALLEN-BRADLEY 100-C60D10
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-480 EQUAL TO ALLEN-BRADLEY 100-C60B01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-277 EQUAL TO ALLEN-BRADLEY 100-C60T01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-24Z EQUAL TO ALLEN-BRADLEY 100-C60J01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-240 EQUAL TO ALLEN-BRADLEY 100-C60A01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-220W EQUAL TO ALLEN-BRADLEY 100-C60L01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-208 EQUAL TO ALLEN-BRADLEY 100-C60H01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-01-120 EQUAL TO ALLEN-BRADLEY 100-C60D01
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-480 EQUAL TO ALLEN-BRADLEY 100-C60B00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-277 EQUAL TO ALLEN-BRADLEY 100-C60T00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-24Z EQUAL TO ALLEN-BRADLEY 100-C60J00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-240 EQUAL TO ALLEN-BRADLEY 100-C60A00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-220W EQUAL TO ALLEN-BRADLEY 100-C60L00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-208 EQUAL TO ALLEN-BRADLEY 100-C60H00
SPRECHER+SCHUH S+S CONTACTOR CA7-60-00-120 EQUAL TO ALLEN-BRADLEY 100-C60D00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-480 EQUAL TO ALLEN-BRADLEY 100-C43B10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-277 EQUAL TO ALLEN-BRADLEY 100-C43T10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-24 EQUAL TO ALLEN-BRADLEY 100-C43J10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-220 EQUAL TO ALLEN-BRADLEY 100-C43L10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-208 EQUAL TO ALLEN-BRADLEY 100-C43H10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-10-120 EQUAL TO ALLEN-BRADLEY 100-C43D10
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-480 EQUAL TO ALLEN-BRADLEY 100-C43B01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-277 EQUAL TO ALLEN-BRADLEY 100-C43T01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-240 EQUAL TO ALLEN-BRADLEY 100-C43A01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-24 EQUAL TO ALLEN-BRADLEY 100-C43J01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-208 EQUAL TO ALLEN-BRADLEY 100-C43H01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-01-120 EQUAL TO ALLEN-BRADLEY 100-C43D01
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-480 EQUAL TO ALLEN-BRADLEY 100-C43B00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-277 EQUAL TO ALLEN-BRADLEY 100-C43T00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-24Z EQUAL TO ALLEN-BRADLEY 100-C43J00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-240 EQUAL TO ALLEN-BRADLEY 100-C43A00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-220W EQUAL TO ALLEN-BRADLEY 100-C43L00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-208 EQUAL TO ALLEN-BRADLEY 100-C43H00
SPRECHER+SCHUH S+S CONTACTOR CA7-43-00-120 EQUAL TO ALLEN-BRADLEY 100-C43D00
SPRECHER+SCHUH S+S CONTACTOR CA7-37-00-480 EQUAL TO ALLEN-BRADLEY 100-C37B00
SPRECHER+SCHUH S+S CONTACTOR CA7-37-00-277 EQUAL TO ALLEN-BRADLEY 100-C37T00
SPRECHER+SCHUH S+S CONTACTOR CA7-37. 24 volts
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-480 EQUAL TO ALLEN-BRADLEY 100-C30B10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-277 EQUAL TO ALLEN-BRADLEY 100-C30T10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-24Z EQUAL TO ALLEN-BRADLEY 100-C30J10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-240 EQUAL TO ALLEN-BRADLEY 100-C30A10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-220W EQUAL TO ALLEN-BRADLEY 100-C30L10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-10-208 EQUAL TO ALLEN-BRADLEY 100-C30H10
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-480 EQUAL TO ALLEN-BRADLEY 100-C30B01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-277 EQUAL TO ALLEN-BRADLEY 100-C30T01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-24Z EQUAL TO ALLEN-BRADLEY 100-C30J01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-240 EQUAL TO ALLEN-BRADLEY 100-C30A01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-220W EQUAL TO ALLEN-BRADLEY 100-C30L01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-208 EQUAL TO ALLEN-BRADLEY 100-C30H01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-01-120 EQUAL TO ALLEN-BRADLEY 100-C30D01
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-480 EQUAL TO ALLEN-BRADLEY 100-C30B00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-277 EQUAL TO ALLEN-BRADLEY 100-C30T00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-24Z EQUAL TO ALLEN-BRADLEY 100-C30J00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-240 EQUAL TO ALLEN-BRADLEY 100-C30A00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-220W EQUAL TO ALLEN-BRADLEY 100-C30L00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-208 EQUAL TO ALLEN-BRADLEY 100-C30H00
SPRECHER+SCHUH S+S CONTACTOR CA7-30-00-120 EQUAL TO ALLEN-BRADLEY 100-C30D00
SPRECHER+SCHUH S+S CONTACTOR CA7-23-10-480 EQUAL TO ALLEN-BRADLEY 100-C23B10
SPRECHER+SCHUH S+S CONTACTOR CA7-23-10-277 EQUAL TO ALLEN-BRADLEY 100-C23T10
SPRECHER+SCHUH S+S CONTACTOR CA7-23-10-240 EQUAL TO ALLEN-BRADLEY 100-C23A10
SPRECHER+SCHUH S+S CONTACTOR CA7-23-10-120 EQUAL TO ALLEN-BRADLEY 100-C23D10
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-480 EQUAL TO ALLEN-BRADLEY 100-C23B01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-277 EQUAL TO ALLEN-BRADLEY 100-C23T01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-24Z EQUAL TO ALLEN-BRADLEY 100-C23J01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-240 EQUAL TO ALLEN-BRADLEY 100-C23A01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-220W EQUAL TO ALLEN-BRADLEY 100-C23L01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-208 EQUAL TO ALLEN-BRADLEY 100-C23H01
SPRECHER+SCHUH S+S CONTACTOR CA7-23-01-120 EQUAL TO ALLEN-BRADLEY 100-C23D01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-10-277 EQUAL TO ALLEN-BRADLEY 100-C16T10
SPRECHER+SCHUH S+S CONTACTOR CA7-16-10-240 EQUAL TO ALLEN-BRADLEY 100-C16A10
SPRECHER+SCHUH S+S CONTACTOR CA7-16-10-24 EQUAL TO ALLEN-BRADLEY 100-C16J10
SPRECHER+SCHUH S+S CONTACTOR CA7-16-10-120 EQUAL TO ALLEN-BRADLEY 100-C16D10
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-480 EQUAL TO ALLEN-BRADLEY 100-C16B01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-277 EQUAL TO ALLEN-BRADLEY 100-C16T01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-24 EQUAL TO ALLEN-BRADLEY 100-C16J01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-220W EQUAL TO ALLEN-BRADLEY 100-C16L01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-208 EQUAL TO ALLEN-BRADLEY 100-C16H01
SPRECHER+SCHUH S+S CONTACTOR CA7-16-01-120 EQ