描述
输出方法的挑选。继电器输出的报价便宜,适用电压规模较宽,导通压降小。但它是原有触点元件,其动作速度较慢、寿数较短,因此适用于不频频通断的负载。当驱动感性负载时其最大通断频率不得超越1Hz。关于频频通断的低功率因数的电感负载,应选用无触点开关元件,即选用晶体管输出(直流输出)或双向可控硅输出(沟通输出)。
USED Allen Bradley 1756-L61S/B GuardLogix Processor F01
USED Allen Bradley 8600-F12A MC/TC CPU Board
USED Allen Bradley 8600-S03D Memory Module Board
USED QSAC 31-50220N12 Servo Control Board
NEW SEALED Allen Bradley 840-A7 Automatic Float Switch
NEW Pacific Scientific 6445-001-K-N Servo Control
USED Siemens 6FC5403-0AA10-0AA0 Sinumerik HT6 Pendant
USED 4000 Amp Siemens RL4000 Breaker Static Trip 3 LSG
USED Allen Bradley 2711P-T12C4D2 PanelView Plus 1250 A
USED Westinghouse 300 kVA Dry Type Transformer 3 phase
2400 Delta HV 480 Y / 277 LV
Siemens I-T-E RD63F200 Sentron Series Breaker 2000 amps
225 KVA 13800 480 277 480Y GE Dry Transformer 3 Phase