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進口德國allectra 301-KAPM-060-PAIR1-10M
產地 | 進口 | 加工定制 | 是 |
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歐戟進口VISHAY全系列KOSD-0313/60KN/15M
歐戟進口VISHAY全系列KOSD-0313/60KN/15M
上海歐戟貿易有限公司
歐戟控制設備(上海)有限公司是歐美備件服務供應商。專注于進口機電設備、儀器儀表等進口設備。
我們的客戶來自汽車(一汽大眾、一汽解放、北京奔馳、奇瑞),汽車下游(大陸汽車、卡斯馬、華域、麥格納),鋼鐵(武漢鋼鐵、山西太鋼、寶鋼),食品(百威、旺旺),能源(中石化、中石油)等多個行業(yè)。
公司總部位于德國法蘭克福,美國芝加哥和中國上海設立分部,可直接與德國、法國、意大利瑞士等千余家廠家進行高效快捷的溝通合作。
美國Progress Chemical Inc.化學制劑中國區(qū)代理
優(yōu)勢品牌
傳感器:HBM、Baumer、KIMO、GE、Kistler、Lorenz、SenoTec
開關:SUCO、Euchner、Layher、Schmersal、Contrinex、Schneider
工業(yè)閥門:Parker、Bucher、Moog、IMAV、AVENTICS、Gemue
工業(yè)泵:Parker、Bucher、Moog、Kracht、Vogel、Hawe
電機驅動:Bosch、Bonfiglioli、Jahns、VEM
夾具模具:Zimmer、Schunk、OTT、PHD、robohand、Berg、Rud
儀器儀表:Wika、Jumo、GMC、Phoenix、GOSSEN、Warmbier
電氣元件:Siemens、B&R、Vipa、Puls、Murr
上海歐戟貿易有限公司
歐戟控制設備(上海)有限公司是歐美備件服務供應商。歐戟優(yōu)勢供應德國工控產品。只要是德國及歐洲的產品,只需您提供產品的名稱、型號及規(guī)格,我們都能在德國為您買到,并送貨到您手上,低價優(yōu)購。
VISHAY | KOSD-0313/60KN/15M |
GEMU | 205 20D 0 1 4 1 24 DC |
TWK | CRT66-4096R4096C4M01 |
kimo | KH250-AO |
JUMO | 608520/0210-818-00-0-843-6-104-96-46-150-21/702 |
Niedax | LLK 60.100 |
Niedax | LER 60.100 |
Niedax | LST 60 |
Niedax | LLK 40.040 |
Niedax | LER 40.040 |
kendrion | 21080008 |
WEISS GmbH | TS004E |
Fibro | 2471.6.006 |
Phoenix | PSR-SCP- 24DC/RSM4/4X1 2981538 |
Bosch Rexroth | 820059051 |
schmalz | FGA 16 NBR-55 N016 Artikel-Nr: 10.01.06.00096 |
MINIMOTOR | MC 440 P3T - B5/D 10 - 339 SN: 840447 |
Sommer-automatic GmbH & Co. KG | MFS103KHC |
Sommer | MGD808NC |
parker | 3339532005 |
Westlock | 2649-A-BY-N-000-12AAA-AR2 |
steute | Nr.1173479 ZS 75 2O/2S WVD |
Balluff GmbH | BTL5-E17-M0200-K-K02 |
Balluff GmbH | BTL5-E17-M0150-K-K02 |
Balluff GmbH | BTL5-E17-M0300-K-K02 |
Kubler | 8.0000.7000.0045 |
Kubler | D8.3B1.0200.A113.0000 |
AVTRON | AVTRON-HS35AY1CDU1EA000 |
INTERNORMEN | AEL MK09U-1C90-B V 258, |
DRAGO | DN 22030-LV |
DRAGO | DG 3200 |
LEE | INKX0514100A |
Phoenix | Nr.1669880 |
Phoenix | Nr.1668014 |
Phoenix | Nr.1694486 |
Phoenix | Nr.1516056 |
Phoenix | Nr.2986957 |
Phoenix | Nr.2981839 |
DEUBLIN | 55-000-094,G3/8 |
FLURO-Gelenklager GmbH | FCR0160040401 ,Gelenkkopf GIXSW 16 x 1,5 |
FLURO-Gelenklager GmbH | FCL0160040401,Gelenkkopf GILXSW 16 x 1,5 |
Baumer | ITD21H00 1024 H NI S21SG8 E 14 IP65 |
Dopag | C-401-01-01 |
DOPAG Dosiertechnik und Pneumatik AG | C-419-00-01 |
Gemue | 615 15D 1125211/N |
SIKO | IG06-1530-AXX-127-PP,61271625 |
P+F | KFD2-DWB-EX1.D 231203 |
Leine & Linde | 514813-01 |
TECNA | 60019367 |
TECNA | 60019368 |
TECNA | 60019366 |
TECNA | 60019370 |
GMC | U1289 D0 F0 G1 H0 M1 P8 U6 V2 W1 Z0 |
GMC | 1715V1120 ASK 31.3 |
GMC | 1715V0150 ASK 31.3 |
IFM | LK7022 |
RTK | ST5112-32 4072423/010 |
Walther | HP-006-2-WB017-01-2 |
Dopag | C-418-01-00-02 |
Dopag | C-418-01-00-01 |
GUTEKUNST | D-117H-50 |
Hanchen | 2587820A,Nr.S008267 |
Induflex | 110 11 040 U533 0250 (ALFA LAVAL Art-Nr.4715514) |
Vahle | VLF 300-2-952-24-36-A |
Vahle | LTM300 S 24M36-95/MK 1.8-B |
Vahle | VLF 220-2-951-12-26 |
Funke | TPL 01-L-54-12,SN:559580 |
MENZEL | MS SD4 |
MENZEL | MS SD3 |
SPIT | 057451 SPIT FIX III M8x70/20-10 M (100PCS) |
ARNOLD & STOLZENBERG | Kettenrad 12B-1, Z?hnezahl = 24; (1642 - 24, 2024050) |
Bilz | WFLK225/A126/SK50 |
Bilz | WES2B-16X12-M20 |
Stoz | TYP:EF-N-0;ART-NR.ZB 4790/075 |
E+L | FX 4631 |
E+L | DR2275 |
RIEGGER | 1110 SW |
LEONI | M12PUR-SW LEONI PUR-line PUR12N-1/2"BK |
LEONI | F07382-00-01 1x35,0 gegn/sw |
LEONI | F07919-01-19 15x0,34+2x(2x0,34) bv |
LEONI | F07192-00-16 (6x(2x0,34)+4x2,5) |
LEONI | M12PUR-BL LEONI PUR-line PUR12B-1/2"BU |
LEONI | M38PUR-RT LEONI PUR-line PUR9R-3/8"RD |
LEONI | F08266-00-06 2x2x0,34+(2x0,34) |
LEONI | F07059-00-04 (4x2,5) Henrob-Kabel ? 9,9 ±0,2 |
LEONI | F07534-00-12 |
LEONI | M70-BU LEONI proflex? 70 blau |
Beckhoff | IP5209-B200-1000 |
Beckhoff | IP5209-B200 |
Murrelektronik | MPS3-230/24 Art-Nr.87760 |
parker | 9PCCM800S parker |
SMW | SMW 018345 |
SMW | SMW 026594 |
Contrinex | DW-HD-613-M30-411 |
wago | 750-454 |
wago | 750-554 |
wago | 750-469 |
wago | 750-466 |
wago | 750-461/000-002 |
wago | 750-469/000-001 |
wago | 750-530 |
wago | 750-461 |
Pantron Instruments GmbH | IMX-N24 24VDC |
Steimel | SF2-20-R,01-2146-2 |
Di-soric | 200504 DCCKR 6.5 V 1.5 POLK |
Di-soric | 206718 DCCQ 08 M 02 PSK-TSL |
Di-soric | 202754 ORV 30 K 4000 P4K-TSSL |
Procentec | 17010 |
PULSOTRONIC | Nr.9962-2330 |
Rinco | Generator SDG 70-100P-230 |
Eltra | EL58C600S5/28P10X3PR |
Schurter | 31.3901 |
Euchner | CES-A-BRN-100251 NO.100251 |
Vahle | SA-KDS2/40/04PH-88/15-0,5 |
Mayr | cr5 500.300.0 |
KTR | ROTEX GS19 64Sh-D-H-GS 6.0-16 6.0-15 |
KTR | ROTEX GS38 64Sh-D-H-GS 6.0-30 6.0-32 |
KTR | ROTEX GS19 64Sh-D-H-GS 6.0-15 6.0-11 |
KTR | ROTEX GS24 64Sh-D-H-GS 6.0-18 6.0-19 |
ELAU | ISH070/60017/0/0/00/0/00/00/00 ID-NO.VIA0702D01A0000 |
SUMER | AL100-40-L-D32-L-TP-P5-4C-FT115/95-19x40 |
Microprecision | MP210-5AL/375/200PVC W |
Kraus & Naimer | KG125 T103/04 E |
KRAUS+NAIMER | KG250 T103/05 E |
MICHAEL RIEDEL | RSTN200 1N-400-230-05 |
MICHAEL RIEDEL | REIA500 500VA Substitute for NB-500E500VA220/110V |
Krombach | SF331 03313160034 |
SERO | SVG 111 G11T2.62 |
CIPAM | BCL500I_OM100_X77 |
PHD | 17502-2-06 |
BDC | DEC12/4309KS 7-40VDC 200MA |
SCHUNK | PGN-plus 125-1 Nr.0371103 |
SCHUNK | PGN-plus 125-1-AS Nr.0371403 |
ATB | 1006918 |
ATB | 1011036 |
Klaschka | HAD-18ss85b1-5NT1 6m |
halder | 22150.0026 |
Vahle | 600111/00 KBHF5/63-1000HSC K.-ST.-SCHLEI |
Vahle | 600112/00 KBHF5/83-2000HSC K.-ST.-SCHLEI |
Vahle | 600113/00 KBHF5/63-3000HSC K.-ST.-SCHLEI |
Murrelektronik GmbH | 9000-41034-0100600 |
zimmer | HK 1505 KR |
zimmer | PMK 15-4 |
zimmer | MK 1505 AK |
KUEBLER | 8.A020.3B52.1024 |
Fibro | 2480.21.00200.100 |
schmalz | FGA11 si-55 |
SCHUNK | MMS-22-S-M8-PNP 0301032 |
SCHUNK | GWB44 0307136 |
Avdel | 07555-09286 |
Becker | U 3.6 SA G002116 |
AXIOMATIC | PWMI-DR-20MA |
KOSTYRKA | 5350.070.120 |
ABB | 5DLN533151-AAK |
Sommer-automatic GmbH & Co. KG | MGP804N |
Sommer | BDST40400 |
Sommer | MFS204KHC |
AVS-Romer | SMF-133-G3/4 498012 |
AVS-Romer | SMF-133-G1 498015 |
zimmer | RBPS1200 |
HEITRONICS | 96004080 Netzteil T24 |
HEITRONICS | 96015057 KT15.82 IIP |
Sauter-Cumulus GmbH | 361951020 |
Sauter-Cumulus GmbH | 361951025 |
SAUTER | AVM105SF132 |
Sauter-Cumulus GmbH | BUN020F300 |
Sauter-Cumulus GmbH | BUN025F300 |
hydac | PRESSURE REDUCER Dr.200/H.Dr.200bar |
hydac | 0500D010BN4HC |
hydac | ETS1701-100-000 |
legrand | Nr.077213 |
legrand | Nr.080299 |
legrand | Nr.572113 |
TAE | BCD / W-ISO-2000 Artiker-No. 25011-0F |
Hawe | SEH2-3/30F-P-G24 |
Hawe | SEH2-3/36F-P-G24 |
Hawe | SEH2-3/22F-P-G24 |
Hawe | PMVP5-44/G24 |
KTR | Rotex GS 48/60P |
Mahle | PI 0154 MIC,77749799 |
SODECA | CMA-324-2T |
Rexnord | 10373702 BWX879 BO-3.25IN (500M) |
Sommer-automatic GmbH & Co. KG | GP224-B |
HOM MEL | Nr.1006 1497 |
HOM MEL | Nr.1004 7345 |
BRECOFLEX | 100ATS15/1980 PAZ WO72 |
BRECOFLEX | 100ATS15/1710 PAZ WO72 |
SCHMERSAL | AZM 161SK-12/12RKA-024;Nr. 101166285 |
RITTAL | SK3244100(RITTAL) |
SMW | NR: 020062 |
PCE Deutschland GmbH | Clac 802 |
PCE | DRH E090 |
B&R | 4PP420.0571- 75 |
parker | MVI600SV |
Mahle | PI 22004 DF PS 6 FPM |
W. Gessmann GmbH | W1018203-010 VV8RPB3-4DWSE-2ZP+2ZP-X-B-A05P184E052 |
Staubli | RBE 08.1102/IC/HPI/OS |
RITTAL | SK3126100 |
Gelbau | 462.46 24V DC |
Woerner | DBS-150-08-EW-T2-S50 |
Bohle AG | 602.2 |
Mecatraction | DE 150-12 |
Mecatraction | DE 185-16 |
Mecatraction | DE 95-10 |
Mecatraction | DE 16-10 |
Mecatraction | DE 185-10 |
Mecatraction | DE 95-12 |
Mecatraction | DE 70-12 |
Mecatraction | DE 150-14 |
Mecatraction | DE 25-6 |
Mecatraction | DE 16-8 |
Mecatraction | DE 120-12 |
Mecatraction | DE 50-8 |
Mecatraction | DE 16-6 |
biax | 150412702 |
riegler | 226.01-14,0 |
InterApp | ES2.P73H |
Contelec AG | Artikel-Nr.: 70011E,Bezeichnung: GL 60- 10K M354 |
EGE | IGMF010GSP s-nr: P30711 |
CORTEM | LOGICHE4200 |
HIRSCHMANN | PG11/931720001;N6REF |
Phoenix | 2866776 QUINT-PS/1AC/24DC/20 |
Phoenix | 2866763 QUINT-PS/1AC/24DC/10 |
Phoenix | 2320898 QUINT-PS/1AC/24DC/20/CO |
Phoenix | 2320911 QUINT-PS/1AC/24DC/10/CO |
OMAL | SR30-F03-F05 Nr. SR030401S |
PMA | TB45-110-00000-000 |
parker | 936704Q |
parker | 936708Q |
Staubli | SPC08.2000/IA/JV.. |
Murrelektronik GmbH | 7000-08361-0000000 |
Murrelektronik GmbH | 7000-08381-0000000 |
Murrelektronik GmbH | 7000-08341-0000000 |
Murrelektronik GmbH | 7000-08321-0000000 |
Sigmatek | CIC 011 Art.-Nr. 12-003-011 |
Phoenix | 1412053 |
EMHART | Type:E503B |
EMHART | Type:Z142 551/6 |
Emhart Teknologies | E547A |
EMHART | Type:E1001067 |
EMHART | M132 363 |
EMHART | M163 008 |
EMHART | E1001028 |
EMHART | Type:E1001017 |
Sommer-automatic GmbH & Co. KG | SGW25NC/02 |
fischer | FMP20 |
fischer | FD13H |
AREVA | 3394024410 Type SS ND/DN80-R C-Steel |
Optron | 9900015 |
RIFOX - Hans Richter GmbH | Artikelnummer:6970100991 4QSOACAZ3312 |
wachendorff | WDGWA10M08 |
wachendorff | WDG-58B-1000-ABN-G24-S3 |
Murr | 7000-94021-2360150 |
Murr | 7000-18021-2360150 |
B&R | X20IF10E3-1 |
ACE | MA225EUM |
PILZ | PSENme 1S /1AS 570000 BD2 |
VERSA-MATIC | E1AP5T559C-B |
Bucher | CINDY 12-B-SNS-S060-A-G10-1-SVA250 |
LEONARD | GSW100-06 MNS |
Camille Bauer | Sineax P 530 |
VEM | K21R 71 K 2 DOD/2700 Nr:0887761004004H |
Demag | SE26089384 |
Demag | SE26087084 |
CEAG | GHG 521 2306 R 0001 |
Boellhoff | P2007 |
HOHNER | H-332A0 / 2000 |
Ahlborn Mess- und Regelungstechnik GmbH | ZA5690MU |
A.T.S | SP3216 550X590X20 L2 |
parker | HL-25.0JJHMIRNS23M200M1100 |
ebmpast | R2E280-AE52-05 |
ebmpast | 66788-4-7320 |
Kronenberg | BB-MS |
Kronenberg | WZF-D |
Contrinex | DW-HD-601-M18-411 |
KRACHT | KF0/4 S10K POA ODL32/107 |
Rechner | KAS-80-23-S-M22 |
microsonic | MIC+130/D/TC |
SCHMITT | 0T824011 Typ T 190 / PP / ET 400 |
Littelfuse | LPSC003ID |
DEUTSCHMANN | TA58-0360-GYE-IDR |
Contrinex | DW-AS-503-M12 |
Euchner | TZ1RE024MVAB-C7 SN097481 |
Balluff GmbH | BES 516-211-E4-E-03 |
Walther | sp-009-1-wr521-21 |
binder | 86 61114H07 |
roehm | 1011063;SPANNSATZ KP HSK-A40/B50 |
SCHUNK | 0340310 KGG 80 |
SCHUNK | 0204476 TENDO SDF HSK-C 32 for Chiron FZ 08 Φ6.0, L1=65 |
Stabilus | 5079DX |
BIKON | DOBIKON 1012-060-090 |
FSG | UZE-884-Z |
DELLMECO | DM15/55 (1 15 50 05) |
Maedler GmbH | 60153714 |
Gemue | 690 32D78205E12/N |
Bucher | RKVE-G-32-02 |
Niedax | LLK 40.040 |
Niedax | LER 40.040 |
coax | MK 10 NC NR500878 |
Baruffaldi | NS.COD. 24.0120.308.01 |
Baruffaldi | DMS-08BF |
TR | CEV58M-00026 |
Kerb-Konus | Art.-Nr. 620 000 100.000, M10 |
WEBER | Type:3201.03 |
TUCKER | M108 976 |
IFM | AC2086 |
micronext | Adapter for non-curved tips |
micronext | Noze Module to be mounted on 04090-A |
micronext | Clip Module to be mounted on 04090-A |
micronext | Adapter for arm tips with connector |
micronext | Adapters for TOP CONNEXION |
micronext | Angle measurement device without any module 04090-A |
micronext | Calibration set for 04090-A |
micronext | Wiper arm load gauge 00403-M |
PULSOTRONIC | 08317624202(neuer Name für 9962-4202) |
Klaschka | IAD-18mg100b5-1T2A (112102) |
Contrinex | DW-AS-503-M8 |
Contrinex | DW-AD-403-04 |
zimmer | MKS2501A |
seim | PDA032#2B01D05D0100 |
PEI | NR.36136253 |
PEI | NR.36113111 |
MEDAV | ANOVIS-Accelerometer-7kHz-TNC |
PMA | TB45-110-00000-000 |
Camfil | OPGPF70592/0592/0292BA00 |
Camfil | OPGPF70592/0287/0292BA00 |
Block | NKD 25/1.17 |
Sensopart | 18/30 L 2/500-Si ID:978-08239 |
SIKO | DA04-1097 |
Ritter&Bader | 047-100-1501 LWK 150/1 Luft-Wasser-Kühler f. |
DICTATOR | B-D-06-15-0080-1/120N-160-240-A05-A05 |
TIMMER | 53508066 |
TIMMER | HS-5358144 |
TIMMER | HS-5358060 |
TIMMER | HS-5358065 |
TIMMER | HS-5358069 |
Beckhoff Automation GmbH | KL2114 |
Beckhoff Automation GmbH | KL9010 |
Beckhoff Automation GmbH | KL9100 |
Beckhoff Automation GmbH | KL1104 |
Beckhoff | BK3150 |
Phoenix | IB IL 24 DO 8-PAC |
Phoenix | FLS IB M12 DI 16 M12 |
Phoenix | FLS PB M12 DIO 8/8 M12 |
Phoenix | ILC 170 ETH 2TX |
B&R | 8LSA44.EB030C100-0(for 8LSA44.E3030C100-0) |
Baumer | 10112896 IWRM 18U9511 |
brinkmann | TS22/350+593 |
GEFRAN | F031166 PZ-12-A-200 0000X000X00 |
HBM | 1-U1R/200KG/ZGW |
HBM | 1-S2M/500N-1 |
Michael Riedel Transformatorenbau GmbH | RSTS8000 0022-400-230-10 |
Sommer-automatic GmbH & Co. KG | GK20N-B |
Sommer-automatic GmbH & Co. KG | GK15N-B |
Eurotec | MNF532024DC-LED |
Eurotec | DRSD 1/4"-V25 |
GE | 04F12Y38T05 |
GE | 05D19y04L05 |
GE | 05F62Y04T05 |
HARMS+WENDE | 0721-HWT21098.3 HWT2109-8,3V-6/2 |
HKS | DA-H 63 180° Art.Nr.:1050734, Drawing no.:200618005048A |
parker | AK-VMY-C-G24 Ersatzfür GRFY045F20E11 |
L+B | GEL 2477Y001 |
Indu-Sol GmbH | 110080000 PBMB-Profibus-Montagebaustein(vormals Nr.00010516) |
B&R | X20BM11 |
B&R | X20DO9322 |
Phoenix | 2941714 |
Phoenix | 2757322 |
Phoenix | 2964186 |
PILZ | PNOZ X3 24VAC 24VDC 3n/o 1n/c 1so 774310 |
Murr | 7000-18021-2260150 |
Murr | 7000-94021-2360150 |
ROLLON | LTA34-550 |
Murr | 7000-94021-2360150 |
Lumberg | 10891 0903UTL101 |
legrand | Q0900 022516 |
LTA | Part no.:49.01073 |
LTA | Part no.:420645 |
LTA | Part[13] 49.00576 |
LTA | Part[8] 49.01074 |
LTA | Part no.:49.00575 |
AZCUE PUMP | 1037 |
Steinbach & Vollmann | 1.53.0711.0 |
LTA | LENGTH OF 760MM NEEDED,420584 4.00167 |
SEIKOM | 74825R RLSW4-R 24V AC/DC |
Fezer | SP-FSD200S-NOR-G Artikelnr.: 1.11.1.0068 |
Friedrich | ME05-Z Kurzhubzylinder |
Friedrich | Kugelbolzen 080-035/06,8 |
Friedrich | Messeinsatz 8658F3H Kordt |
Friedrich | Messeinheit ME05 |
Murrelektronik | 7000-18081-2261000 |
Murrelektronik | 7000-11081-2260500 |
Murrelektronik | 8000-88010-3570500 |
Murrelektronik GmbH | 52511 |
Murrelektronik | 7000-58021-6270150 |
Murr | 7000-12611-0000000 |
Murr | 7000-12491-0000000 |
Murrelektronik | 7000-41121-0000000 |
Murr | 67096 |
Murrelektronik GmbH | 7000-18021-6260300 |
Murrelektronik | 52002 |
Murrelektronik GmbH | 85161 |
Murrelektronik | 7000-12515-0000000 |
Hawe | G 3-12-1/4-XM 24 |
Sommer | GP406S-C |
FSG | 1700Z04-257.107 |
schmalz | SCPi 25 NC RD M12-5 |
Klaschka | IAD-18mg100b5-1T2A |
Sommer-automatic GmbH & Co. KG | GS65-B |
JUMO | 60/00435579(602021/0003-021-000-50-1000-40-10-00-00-000-00-6 |
B&R | X67CA0E61.0150 |
B&R | X67CA0X41.0050 |
B&R | X67CA0X21.0150 |
JUMO | 60/00435579(602021/0003-021-000-50-1000-40-10-00-00-000-00-6 |
在很多的家用電器上(如自動洗衣機、電爐加溫等等),為了防止電流過大而損傷電器,因此在電器上面安裝了一些繼電器。繼電器是一種電子控制器件,實際上是用較小的電流去控制較大電流的一種“自動開關”。那么繼電器的是如何工作的?其作用又有哪些?下面一起來看看:
1.基本概念
繼電器(英文名稱:relay)是一種電控制器件,是當輸入量(激勵量)的變化達到規(guī)定要求時,在電氣輸出電路中使被控量發(fā)生預定的階躍變化的一種電器。它具有控制系統(tǒng)(又稱輸入回路)和被控制系統(tǒng)(又稱輸出回路)之間的互動關系。通常應用于自動化的控制電路中,它實際上是用小電流去控制大電流運作的一種“自動開關”。故在電路中起著自動調節(jié)、安全保護、轉換電路等作用。
19世紀30年代,美國物理學家約瑟夫·亨利在研究電路控制時利用電磁感應現(xiàn)象發(fā)明了繼電器。最早的繼電器是電磁繼電器,它利用電磁鐵在通電和斷電下磁力產生和消失的現(xiàn)象,來控制高電壓高電流的另一電路的開合,它的出現(xiàn)使得電路的遠程控制和保護等工作得以順利進行。繼電器是人類科技的一項偉大發(fā)明創(chuàng)造,它不僅是電氣工程的基礎,也是電子技術、微電子技術的重要基礎。
圖1 繼電器
2.電路符號
繼電器的文字符號為“K”,圖形如圖2所示。在電路圖中,繼電器的接點可以畫在該繼電器線圈的旁邊,或在遠離該繼電器線圈的地方,而用編號表示它們的彼此關系。
圖2 繼電器的電路符號
3.主要作用
(1)放大:例如,靈敏型繼電器、中間繼電器等,用一個很微小的控制量,可以控制很大功率的電路。
(2)綜合信號:例如,當多個控制信號按規(guī)定的形式輸入多繞組繼電器時,經過比較綜合,達到預定的控制效果。
(3)自動、遙控、監(jiān)測:例如,自動裝置上的繼電器與其他電器一起,可以組成程序控制線路,從而實現(xiàn)自動化運行。
(4)擴大控制范圍:例如,多觸點繼電器控制信號達到某一定值時,可以按觸點組的不同形式,同時換接、開斷、接通多路電路。
4.基本結構
圖3 繼電器的結構
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