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電源選型推薦

整個DTU系統(tǒng)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(tǒng)的正常運行。另外，電網(wǎng)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(tǒng)掉電保持時間500mS以上。

根據(jù)上面的應(yīng)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(yè)級工作溫度：-40℃～+70℃；2500VAC 高隔離電壓；大瞬時過功率達540W；優(yōu)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(wěn)態(tài)功率達到351W。
電源是各種電子設(shè)備必不可缺的組成部分,其性能優(yōu)劣直接關(guān)系到電子設(shè)備的技術(shù)指標(biāo)及能否安全可靠地工作。目前常用的直流穩(wěn)壓電源按功率管的工作方式分為線性電源和開關(guān)電源兩大類。線性穩(wěn)壓電源亦稱串聯(lián)調(diào)整式穩(wěn)壓電源,電路技術(shù)比較成熟。具有低紋波、高穩(wěn)壓性能等優(yōu)點。但由于必須使用工頻變壓器,且調(diào)整管工作在線性放大區(qū),因而體積大和重量大、效率低。開關(guān)電源調(diào)整管工作在高頻開關(guān)狀態(tài),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(xiàn)電壓變換和電網(wǎng)隔離。
為解決傳統(tǒng)的PWM型變換器的上述問題,可采用諧振、準(zhǔn)諧振、多諧振以及具軟開關(guān)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(shù)或外加電感、電容作為諧振參數(shù),使變換器中的功率開關(guān)在零電壓或零電流下開通和關(guān)斷,開關(guān)兩端的電壓或經(jīng)過開關(guān)的電流是正弦或半正弦波形。因此大大減少開關(guān)的瞬問損耗和開關(guān)應(yīng)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(shù)以及散熱方式的改進，就使電源系列、標(biāo)準(zhǔn)化、模塊化成為現(xiàn)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
Sprecher+Schuh TD-855 COIL 24VAC 50/60HZ FOR STARTER  in the box!
Sprecher+Schuh TD733 COIL, DC, CA7-43C, 110V  in the box!
Sprecher+Schuh TD475 COIL  in the box!
Sprecher+Schuh TC296 Coil 208-240 Volt  in the box!
Sprecher+Schuh ta860 coil  in the box!
Sprecher+Schuh TA-855 Coil  in the box!
SPRECHER+SCHUH SWITCH KIT 93-2013
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