IC697GDS701IC697GDS701

 空調(diào)系統(tǒng)的控制主要分為繼電器控制系統(tǒng)、直接數(shù)字式控制器（DDC）系統(tǒng)和可編程序控制器（PLC）系統(tǒng)等級(jí)幾種。由于故障率高、系統(tǒng)復(fù)雜、功耗高等明顯的缺點(diǎn)，繼電器控制系統(tǒng)已逐漸被淘汰。DDC控制系統(tǒng)雖然在智能化方面有了很大的發(fā)展，但由于其本身抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級(jí)分步式結(jié)構(gòu)的局限性，從而限制了其應(yīng)用。相反，PLC控制系統(tǒng)以其運(yùn)行可靠、使用維護(hù)方便、抗*力強(qiáng)、適合新型高速網(wǎng)絡(luò)結(jié)構(gòu)等顯著的優(yōu)點(diǎn)，在智能建筑中得到了廣泛的應(yīng)用。為了提高空調(diào)系統(tǒng)的經(jīng)濟(jì)性、可靠性和可維護(hù)性，目前空調(diào)系統(tǒng)都傾向于采用*、實(shí)用、可靠的PLC來進(jìn)行控制。

鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司  

采用傳統(tǒng)的繼電器控制系統(tǒng)來實(shí)現(xiàn)熱泵的控制，由于機(jī)械接觸點(diǎn)很多，接線復(fù)雜，參數(shù)調(diào)整不方便，而且機(jī)械接觸點(diǎn)的工作頻率低，容易損壞，可靠性差。采用直接數(shù)字式控制器（DDC）雖然可以減少接線，可靠性有所提高，但由于DDC其本身的抗*力差、不易聯(lián)網(wǎng)、信息集成度不高和分級(jí)分步式結(jié)構(gòu)的局限性，因此，越來越不能滿足復(fù)雜多變的智能控制要求。

Siemens Circuit Breaker 3VU1300-1ME00 0.4-0.6 amp SOLD IN LOTS OF 2

SQUARE D CIRCUIT BREAKER FAL12015 15A 15A A AMP 120V VOLT 1 POLE 

Siemens Circuit Breaker 5SY4204-7 5SY42 MCB C4 w/ Auxiliary Switch 5ST3010AS

SQUARE D BREAKER FA-36100-18M 100A 100 A AMP 600Vac 3 POLE FA3610018M

ABB Circuit Breaker TF3225 RT-594 175A 175 A Amp 3P 480/690 VAC 500 VDC Used

SQUARE D FAP34015 15A 15 A AMP CIRCUIT BREAKER 3 POLE

Moeller Klockner Circuit Breaker NZM3 NZM3 NZM H3 NZMH3 250A 250 A Amp 3P 690V

WESTINGHOUSE LC3400F 400A BREAKER W/ 300A 300 A AMP TRIP UNIT 600V VOLT 3P POLE

General Electric GE Breaker 250A 250 A Amp 3P 3 Pole UNSURE OF ITEMS MODEL #

FUJI ELECTRIC BREAKER EG33F 20A 20 A AMP 30mA 100-200V VOLT 3 POLE 

GE A SERIES II ADF3421DBX AB49B 225A 225 A AMP 480Y/277V 3PH BREAKER PANELBOARD

SQUARE D 600A 600 AMP A MOLDED CASE CIRCUIT BREAKER MH36600 SER 2 600V

2 ALLEN BRADLEY 1492-G030 CIRCUIT BREAKER 3A 3 a amp 3amp 250VAC

Square D Breaker Lot of 2 QOB140 QOB 40A 40 Amp A 1P 

Allen Bradley Breaker 1492-CB3 H030 1492CB3H030 3A 3 A Amp Series B 480VAC 3P 

GE CIRCIUT BREAKER THQC-2-20 20A 20 AMP A 2-POLE 2P 120-240 VOLT THQC220

WESTINGHOUSE HMCP003A0 B HMCP003A0B 3A 3 A AMP 600 VAC 3 POLE CIRCUIT BREAKER

WESTINGHOUSE BREAKER F3015 15A 15 A AMP 600Vac 3 POLE 

NEW SQUARE D CIRCUIT BREAKER FAL340351212 480/250 V 35A A AMP 3 POLE

SIEMENS LOT OF 2 CIRCUIT BREAKER 5SX21C4 4A 4 A AMP 1POLE 230/400V

NEW SWAGELOK BRASS TUBE SOCKET WELD MALE CONNECTOR 3/8"TS1/4"MNPT B-6-TSW-1-4

I-T-E Circuit Breaker EE1-H020 EE1H020 20A 20 Amp A 1P

Square D 110 V Coil 1331 S8 W18B 1331S8W18B 1331-S8-W12B New

NEW ITE CIRCUIT BREAKER ET4031 15A 15 A AMP 600Vac 3 POLE 

GE GENERAL ELECTRIC BREAKER TJJ436200 200A 200 A AMP 600Vac 3 POLE 200A TRIP 

GE General Electric Circuit Breaker TFJ236175 175A 175 A AMP 600Vac 3 Pole

CUTLER HAMMER CIRCUIT BREAKER WMS2C16 16A 16 A AMP 2 POLE 415V

SQUARE D  BREAKER FH6020B 20A 20 A AMP 277Vac 1 POLE 

ITE CIRCUIT BREAKER EE2-B015 15A 15 A AMP 240Vac 2 POLE EE2B015

WESTINGHOUSE BREAKER F3020 20A 20 A AMP 600Vac 3 POLE 

Westinghouse Circuit Breaker EHB3040 40A 40 a amp 3p

WESTINGHOUSE BREAKER MCP0358C 7A 7 A AMP 600Vac 3 POLE 

SIEMENS CIRCUIT BREAKER 5SX23C20 20A 20 A AMP 3 POLE 480V

ALLEN BRADLEY CIRCUIT BREAKER 1492-CB2 1492CB2 H070 7A 7 A AMP 2HP 2P 2 POLE

SIEMENS C16 CIRCUIT BREAKER 5SX21 230/400V 16A 16 A AMP 1 POLE 

2) FPE Federal Pacific Breaker NQ112020 20A 20 Amp A 1P

SQUARE D CIRCUIT BREAKER 999350 50A 50 A AMP 600Vac 3 POLE 

GE GENERAL ELECTRIC SHUNT BREAKER TFK226Y225 225A 225 A AMP 600Vac 2 POLE 

CUTLER HAMMER BREAKER EHD3100L 100A 100 A AMP 480Vac 250Vdc 3 pole 

WESTINGHOUSE BREAKER HMCP100L3CA02 100A 100 A AMP 600Vac 250Vdc 3 POLE 

New Cutler Hammer Breaker WMS3C30 30A 30 Amp A 3P C30

NEW GE THED124015WL HI-BREAK CIRCUIT BREAKER 15A 15 AMP A 2P 480V THED124015

SIEMENS MINIATURE CIRCUIT BREAKER 5SY4 304-7 5SY4304-7 5SY43047 400V 3 POLE NIB

SIEMENS C1A30QJ225CTS BREAKER COLUMN PANEL 250A 250 A AMP MAIN 120/240V 1PH 3W

FESTO MANIFOLD VALVE PRS-ME-1/8-6 MEH-5/2-1/8-P-L-B PRSME1/86 MEH521/8PLB

SQUARE D CIRCUIT BREAKER 24525 20 AMP A 20A 2 POLE 2P MULTI 9 C60 D20A 88125

NEW SIEMENS CIRCUIT BREAKER 5SY4220-6 5SY42MCB-B20 20A 20 A AMP 2P 2POLE 400V

Siemens I-T-E Breaker BQCH1B020 20A 20 A 20 Amp 1P BQCH

Swaglok Stainless S/S Steel 3/4" NPT End Cap SS-12-VCR-CP SS-12VCRCP New

BURNS 130 312 130312 THERMOCOUPLE PROBE 23 3/8" X 1/4" 1/2" NPT

Merlin Gerin Circuit Breaker C161N C161N-L 80A 80 A Amp 3 Pole 250V 690V New

HAGER CIRCUIT BREAKER NT 210 NT210 10A 10 A AMP 2 POLE 480210 2 MCB 9kA 430V 

SQUARE D FAL26035 CIRCUIT BREAKER 35A 35 AMP A 600V 2 POLE SERIES 2 

NEW GE GENERAL ELECTRIC BREAKER TED134C5100 100A 100 A AMP 480Vac 250Vdc 3 POLE 

GE Circuit Breaker TEC36030 30A 30 A Amp 3P 600 VAC w. Shunt Wires Used

NEW CBI CIRCUIT BREAKER QF17A30 30A 30 A A AMP 240V VOLT 2 POLE 

General Electric Breaker TQL32020 20A 20 Amp A 3P

 ENTRELEC STOP CIRCUIT 15 AMP A 15A 1 POLE GMU 15U 600VAC GMU15U 

Airpax Breaker 219-1-22636-1 Breaker 2191226361 100A 100 A Amp 12V 1 Pole 1P

NEW SCHNEIDER CIRCUIT BREAKER D10A C60 MULTI 9 10 AMP A 10A 1P 1 POLE

CUTLER-HAMMER BREAKER EHD1020L SER C 20A 20 AMP A 1 POLE

Westinghouse Circuit Breaker EH1020 1P 1 Pole 20A 20 A Amp Lot of 2 Used

SMC Solenoid Valve NVS4144-0209D NVS41440209D 150 PSI 120 VAC New

GE GENERAL ELECTRIC SHUNT BREAKER FRAME F 20A 20 A AMP 600Vac 3 pole 

ITE SIEMENS CIRCUIT BREAKER ED63A050 50 AMP 50A  600 V 

SQUARE D THERMAL-MAGNETIC CIRCUIT BREAKER KC24200AC SER 2 2-POLE 200 AMP A 200A

ge Dry TypeTransformer 9T51B84 .100 KVA 1PH 600 V 600 volt 600v Type QB 120/240V

WESTINGHOUSE BREAKER 1532373A 20A 20 A AMP 125Vac 1 POLE  E-7819

WESTINGHOUSE BREAKER HMCP250A5C 250A 250 A AMP 600Vac 3 POLE SER C 

MINCO CH102P2T4 THERMOCOUPLE TEMPERATURE PROBE SENSOR CONNECTOR HEAD 3/4 NPT NEW

ABB S 263 B 25 S263B25 25A 25 A AMP CIRCUIT BREAKER NEW

Westinghouse Mark 75 HKL3250 Circuit Breaker 250 Amp

LOT OF 2 CUTLER HAMMER CIRCUIT BREAKER BR130 30A 30 A AMP 1 POLE 120/240V

RELIANCE 01KSK13877C-XW RPM III C1812ATCZ 7.5HP 7.5 HP 180V D-C MOTOR REBUILT

General Electric Breaker TED124020 20A 20 Amp 20 A 2P 

NEW GE THED136040WL HI-BREAK CIRCUIT BREAKER 40A 40 AMP A 2P 600V THED136040

No Name Coil 5866261AB New

ITE CIRCUIT BREAKER ET4037 90A 90A AMP 600Vac 3 POLE ET-4037 

FUJI ELECTRIC BU-ESB3060 CIRCUIT BREAKER 60A 60 AMP A 3P 600VAC BU-ESB

SIEMENS CIRCUIT BREAKER 3VF3111-1FQ41-0AA0 415V VOLT 80A 80 A AMP 3 POLE 

AEG ELFA E83S C16 CIRCUIT BREAKER 277/480V AC 16A 16 A AMP 3 POLE 

MERLIN GERIN CIRCUIT BREAKER C60N 25A 25 A AMP TYPE C 480V

GE SHUNT BREAKER TKM3F TKMA1200 1200A 1200 A AMP w/ 1200A TRIP 600Vac  3 POLE 

CUTLER HAMMER 1200A 1200 AMP A CIRCUIT BREAKER ND 50K 3P 600V ND312T35WP08X03

SQUARE D 1 POLE 70A 70 A AMP FH-16070-A FH16070A 

CUTLER HAMMER BREAKER FH360020 A 20A 20 A A AMP 600Vac TYPE FH 3 POLE FH360020A

NEW WESTINGHOUSE SHUNT BREAKER F3020 20A 20 A AMP 600Vac 3 POLE 

Merlin Gerin Multi 9 Circuit Breaker 24541 C60N 20A A Amp Type D 3P 3 Pole Used

GE GF GROUND FAULT CIRCUIT BREAKER THQB1115GFEP 15A 15 AMP A 120V 1 POLE

ITE SHUNT CIRCUIT BREAKER ET4032-25 25A 25 A AMP 600Vac 3 POLE ET403225

ITE BREAKER TYPE ET 90A 90 A AMP 600Vac 3 POLE FRAME F 

ABB CONTACTOR 170A 170 AMP A 600V 4P EK-100 SK-824-040 SK-824-040-DB 24V COIL

No Name Relay 2D29M5 DCD11 2D29M5DCD11 New

Digi Key Resistor ERJ-2RKF4021X P4.02KLCT-ND 4.02K Ω Ohm 1/16W 1% 0402 50pc New

GENERAL ELECTRIC BREAKER 20A 20 AMP A TEB132020 3p NEW

GE THEF136015 3 POLE 15A 15 A AMP HI BREAK BREAKER 

Cutler Hammer Breaker WMS2C15 C15 15A Amp A 2P CSA 22.2

SQUARE D FA32020 20A 20 A AMP 240V 240 VOLT 3P 3POLE 

ABB UXAB 727131 R 111 CIRCUIT BREAKER UXAB727131R111 480 VAC 40A 40 A AMP 3 POLE

MOELLER P10-400 P10400 P 10-400 400A 400 A AMP CIRCUIT BREAKER NIB

WESTINGHOUSE CIRCUIT BREAKER HK3225F 600 VAC 225 A AMP 3 POLE 125 TRIP 

SIEMENS CIRCUIT BREAKER 5SX21C13 13A 13 A AMP 1 POLE 230/400V

ABB CIRCUIT BREAKER S271 K10A S271K10A 10 AMP A 10A 230/400V 1 POLE W/ CONTACTOR

ALLEN BRADLEY CIRCUIT BREAKER 1492-GHD040F 1492GHD040F 4.0A 4.0 A AMP SER A 250V

MAC Solenoid Valve 82A-AC-000-TM-DAAP-1DA 82AAC000TMDAAP1DA 120V Coil ONE COIL

SWAGELOK MONEL BELLOWS REPLACEMENT KIT M-8B-K1 M8BK1 NIB

WESTINGHOUSE SHUNT BREAKER F3040 40A 40 A AMP 600Vac 3 POLE 

SQUARE D CIRCUIT BREAKER MAL36800 800 AMP 800 TRIP 240/ 600 VAC 3 P POLE 

CUTLER HAMMER CIRCUIT BREAKER WMS2D06 D6 415 VOLT 6 AMP A 6A 2 POLE 2P

WESTINGHOUSE CIRCUIT BREAKER TRIP UNIT HMA3600T 3 POLE 3P 600 AMP A 600A - USED

Square D Breaker EHB14020HID 20A 20 Amp A 1P 1 Pole

Siemens Circuit Breaker 3VU1600-1ML00 6-10 amp

Bison AC Gear Motor 1/12HP 1/12 HP 115/230V 0.98A 78 RPM Ratio 23:1

ITE I-T-E CIRCUIT BREAKER 800A 800 AMP A 22" X 9" X 5-1/2"

Square D Circuit Breaker SFAL30501253 SFAL 50A 50 A Amp 3P 240-415 V Volt New

HARTZELL 90100277 0001 37" O.D. 3" BORE FAN BLADE NEW OLD INVENTORY

GE GENERAL ELECTRIC CIRCUIT BREAKER TED124015WL 15A 15 AMP A 250VDC 480V NIB

Westinghouse Breaker EB2020 20A 20 Amp 20 A 2 Pole 2P

ABB S 283 K 63A Circuit Breaker 122128193-002 S283K63A 63 A Amp 3P 3 Pole

WESTINGHOUSE AB DE-ION CIRCUIT BREAKER 1605427 3 POLE 600A 600 A AMP

WESTINGHOUSE CIRCUIT BREAKER HLA3400F 400 A AMP 3 POLE 600 VAC MARK 75 350 TRIP

WESTINGHOUSE 80E4535 225A 225 A AMP 3 POLE BREAKER NEW

MOLINS CIRCUIT BOARD CARD SA2727-003 SA2727003

I-T-E- SIEMENS ELECTRICAL CIRCUIT BREAKER ED63B090 90A 90 A AMP 3 POLE 600 VAC

WESTINGHOUSE DS4000 ds 4000  4000 A AMP BREAKER 6000A FUSE TRUCK  600 V VOLT

ITE CIRCUIT BREAKER EE3B040 40A 40 A AMP 240Vac 3 POLE 

MITSUBISHI NF30-SS BREAKER 20 AMP 20A A 2P W/LN420N9684

MITSUBISHI NF50-CS BREAKER 20 AMP 20A A 2P W/LN420N9684

SQUARE D J6 C 611 LH-36400 SER 1 BREAKER 400A 400 A AMP

AIRPAX CARRIER HH83XB408 BREAKER 23A 480V TRIP 27A 219-3-2600-408

COOPER BUSSMAN CIRCUIT BREAKER CCP-3-30CC 3 pole 600V 30A 30 AMP A 7.5HP@600V

I-T-E Circuit Breaker ET-2634 ET2634 40A 40 Amp A 3P

Westinghouse Ab De-Ion Circuit Breaker 458D732G06 25A

Siemens Sirius 3RV1421-4BA10 Breaker 3RV14214BA10 14-20A 14-20 A Amp 3P 3 Pole

GE 400A 400 A AMP CIRCUIT BREAKER 3P 3 POLE 240V 250V TJD432400WL TCAL43 NEW

Square D Circuit Breaker FAL26015 15A 15 A Amp 600 VAC 2P Series 1 2 Pole New

LOT OF 2 SIEMENS CIRCUIT BREAKER 5SX21C6 6A 6 A AMP 1 POLE 230/400V

New GE Breaker 20A 20 Amp A 1P 1 Pole UO633 U0633 THQB

SIEMENS CIRCUIT BREAKER 5SX21 C1 WITH 5SX91 1 AMP A 1A 1 POLE 1P - USED

SQUARE D FH16070B FH-16070-B 70A 70 A AMP 1P BREAKER 

GE GENERAL ELECTRIC BREAKER SGHA26AT0400 400A 400 A AMP 600Vac  2 POLE 

NEW SQUARE D PK0GTA4 I-LINE GROUNDING LUG KIT SERIES E1

GE GENERAL ELECTRIC BREAKER TEB132YT100 100A 100 A AMP 250Vac 250Vdc 3 POLE 

Siemens Circuit Breaker 5SY4206-7 5SY42 C6 400V w/ Auxiliary Switch 5ST3010AS 

ABB Circuit Breaker T1N 40A 40 A Amp 3P 230/500V Used

SIEMENS MANUAL MOTOR CONTROLLER 3RV1011-0HA10 W/CONTACTOR 3RV1901-1A 10A

ITE I-T-E  CIRCUIT BREAKER EH3-B015 EH3B015 3P 3 POLE 15A 15 A 15 AMP

NEW BARKSDALE DIAPHRAGM SWITCH D2S-A3SS-P2 D2SA3SSP2 .03-3 PSI 10 PSI  

Mitsubishi Circuit Breaker NV100-CA NV100CA 100A 100 A Amp 3P 30mA 200V 10kA 

DANFOSS 6000H52 VLT TYPE 6042 VLT6042 VLT 6000 40HP 40 HP 460V 3PH HVAC AC DRIVE

NEW WESTINGHOUSE QUICKLAG-C CIRCUIT BREAKER SWD115 1 POLE 15A 15 A AMP 

Siemens Breaker w. Shunt Wires 3VT5200-0DQ00 50A 50 A Amp 3P Used

GE 7700 LINE FDR 100A AMP CONTROL CENTER FEEDER BUCKET MCC 600V 120V CONT. 

FABCO-AIR THE PANCAKE LINE C-321-X-PM C321XPM AIR PNEUMATIC CYLINDER NEW

GE TRI-BREAK TB 43F 3P 400A 400 A AMP CIRCUIT BREAKER

WESTINGHOUSE BREAKER F3040 40A 40 A AMP 600Vac 3 POLE 

GE General Electric Breaker THEF136020 20A 20 Amp A 3P

Westinghouse Breaker QC SWD 20A 20 Amp A 1P 1 Pole

NEW GE GENERAL ELECTRIC THED114015 CIRCUIT BREAKER 15A 15 AMP A 375V THED-114015

SIEGLING E 6/2 UO/G10  E6/2UO/G10  CONVEYOR  BELT  LENGTH: 13' WIDTH:3.14" NEW

ALLEN BRADLEY CIRCUIT BREAKER 1492-SP3C320 1492SP3C320 SER C 32 AMP A 32A 3 POLE

WESTINGHOUSE MA3800F TYPE MA 800A FRAME CIRCUIT BREAKER 600 A AMP TRIP 600V 3P

Siemens Circuit Breaker 5SX2 C16 400V 480V 2 Pole Used 

Fuji Electric Circuit Breaker BU-ECA2005 5A 5 A Amp 2P 240 VAC Used

MITSUBISHI NO-FUSE CIRCUIT BREAKER NF100-CS 75A 75 A AMP 600Vac 3 POLE  NF100CS

SANKEN AIRPAX CIRCUIT BREAKER 8651 UPL 55 FL AMPS TA 25.0 I 20 V 65 2 POLE 2P

CHALLENGER CIRCUIT BREAKER CFH3030 CFH 65K CFH65K 30A 30 AMP A 3 POLE 600VAC 

Fuji Electric Circuit Breaker BU-ESB2060 60 Amp 2 Pole

ITE Siemens 10A Circuit Breaker ED63A010 with A01ED62

MERLIN GERIN MULTI 9 C60HD CIRCUIT BREAKER C60HD-D16 16A A AMP 415V VOLT 2 POLE 

CUTLER HAMMER A10CN0 SIZE SZ 1 120V COIL FUSIBLE COMBO COMBINATION MOTOR STARTER

Motortronics Transformer 460-208 460208 Ratio 1.73:1 600 Volt New

GE GENERAL ELECTRIC CIRCUIT BREAKER MODULE AMC6EB MODEL 1 6 POLE 600V 300A AMP A

SQUARE D BREAKER MOLDED CASE SWITCH 600A 600 AMP A MHL360006M MHL SER 2 3 Pole

WESTINGHOUSE CIRCUIT BREAKER MA3800NW  800 A 800A AMP 600 VAC 3 P POLE 

STI OS-2 Solid State Relay 41648 OS2 New

NEW SIEMENS BREAKER NEG3B035 TYPE NEG 35A 35 A AMP 3 POLE 

SIEMENS CIRCUIT BREAKER W/ AUXILLARY SWITCH 5SY4432-7 5SY44MCBC32 5ST3010 4P 

I-T-E CIRCUIT BREAKER E63A050 TYPE E6-A ETI 600Vac 50A 50 A AMP 3 POLE 

Allen Bradley Motor Protector Circuit Breaker 140M-C2E-A16 Ser C 0.10-0.16A New

Square D Breaker KH-36225 KH36225 225A 225 Amp A 3 Pole

Mitsubishi No-Fuse Circuit Breaker NF100-SWU3075 75A 75 A Amp 3P 220 VAC Used

United Electric J21K 7611 Pressure Switch Range 0-25PSID 1.75PSI 20A 125/250Vac

SIEMENS CDP-7 SER 8 225A 225 A AMP 3PH 4W BREAKER PANELBOARD 208Y/120V VOLT

GE A SERIES AQF3301AT 125A 125 A AMP 208Y/120V 3PH 4W BREAKER PANELBOARD NEW

CUTLER-HAMMER GROUND FAULT BREAKER CH130EPD 1P 120V 30A 30 AMP A TYPE CHGF NIB

ITE Electric Circuit Breaker 10a 10 a EF3-4010 EF34010

LOT OF 8 ITE BREAKER ET 1151 15A 15 A AMP 120Vac 1 POLE ET1151

FISHER 4194HBM 3-15 OUTPUT 0-100 PERCENT PRESSURE CONTROL CONTROLLER

Avtron Analog Converter K663 261 K663C20438 250VDC/750VDC 115/230 VAC Used

WESTINGHOUSE SHUNT BREAKER JB3200W 200A 200 A AMP 600Vac 3 POLE 200A TRIP 

Square D Circuit Breaker LAL36200 200A 200 A Amp 3P 3 Pole New