| 品牌：AB | 規格：1756-A13 | 材質：1756-A13 |
| 產地：美國 |
1756-A13
1756-A13
1756-A13
控制繼電器存在的缺點
今天繼電器已應用到家庭及工業控制的各個領域。他們比以往的產品具有更高的可靠性。但是，這也是隨之帶來的一些問題。如絕大多數控制繼電器都是長期磨損和疲勞工作條件下進行的，容易損壞。而且繼電器的觸點容易產生電弧，甚至會熔在一起產生誤操作，引起嚴重的後果。再者，對一個具體使用的裝有上百個繼電器的設備，其控制箱將是龐大而笨重的。在全負荷運載的情況下，大的繼電器將產生大量的熱及噪聲，同時也消耗了大量的電能。並且繼電器控制係統是手工接線、安裝，如果有簡單的改動，也需要花費大量時間及人力和物力去改制、安裝和調試。
ALLEN BRADLEY 1492-SP1D040 SERIES C MINI CIRCUIT 4A 1 POLE
ALLEN BRADLEY 104S-C37DJ210BC SERIES C SAFTEY CONTACTOR 600V AC MAX
ALLEN BRADLEY 100S-C37DJ14BC SERIES C SAFETY CONTACTOR 600V 37A
ALLEN BRADLEY 800P-F2CGA SERIES E PALM OPERATED PUSH BUTTON
SIEMENS 3RV1021-1CA10 CIRCUIT BREAKER 3 POLE 1.8-2.5AMP GB14048.2/4/50
REES 50703N0-NC CONTACT BLOCK 600AMP 15VAC
FESTO ADVU-32-40-P-A COMPACT CYLINDER 0,8-10 BAR
BRAD HARRISON DN11A-M210 DEVICENET 5P CABLE MINI CHANGE M/F ST/ST
ALLEN BRADLEY 1492-A1B8 SERIES A SINGLE PHASED BUS BAR 80 A
EFECTOR PN5006 ELECTRIC PRESSURE MONITOR 36VDCF 250MA
ALLEN BRADLEY 800FM-SM22MX11 SERIES A MAINTAINED SELECTOR SWITCH 2 POS
ALLEN BRADLEY 800F-MD3CX11 SERIES A FULL VOLTAGE CONTACT MODULES
APOLLO CONBRACO 82-105-19 BALL VALVE 1" NPT BRONZE LOCKING
PIAB X1072 VACUUM CHECK VALVE VT-1H VACUSTAT WITH COAX AIR IN G1/8
TURCK RKM 46-8M/S600 CORDSET, MINIFAST, 4 POLE, SINGLE ENDED, FEMALE
TURCK RKM 36-8M CORDSET, MINIFAST, 3 POLE, FEMALE, STRAIGHT
TURCK NI25U-CK40-ADZ30X2-B1131 PROXIMITY SWITCH, 25MM, 20-250VAC
TURCK NI20U-MT30-AN6X2-H1141 PROXIMITY SENSOR, 200MA, 10-30VDC
TURCK MK13-UPN-EX0/24VDC ISOLATING SWITCH AMPLIFIER, MULTI-MODULE
TURCK FSSDWE D95 FKSDWE 456-0.5M-0.5M CORDSET, 9-POLE
TURCK BI5U-MT18H-AP6X2-H1141/S1589 PROXIMITY SENSOR, 10-30VDC
TURCK BI15U-CP40-VP4X2 PROXIMITY SWITCH, UPROX, 10-65VDC, 200MA, 15MM
TURCK BI15U-CP40-AP6X2 PROXIMITY SWITCH, UPROX, 10-30VDC, 200MA
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