add1234 wrote:
你確定3個接點並聯起...(恕刪)
李組長皺眉 事情好像沒有那麼單純
5007382 wrote:
你控制是DC應該要買...(恕刪)
MC對於A/DC等不同的負載電流,其啟斷能力是不同的,不可只看其額定電流(大多數之額定電流,以AC-1定義,但這是最寬鬆的負載),還必須確認屬於何種用電負載,許多電機工作者都不懂,也不會去翻規範.
請參閱 IEC-60947-4-1 2000 Table-1的定義
Kind of current Utilization categories Typical applications
AC-l Non-inductive or slightly inductive loads, resistance furnaces.
AC-2 Slip-ring motors: starting, switching off.
AC-3 Squirrel-cage motors : starting, switching off motors during
running.
AC-4 Squirrel-cage motors : starting, plugging. Inching.
AC-5a Switching of electric discharge Ismp controls.
AC-5b Switching of incandescant lamps.
AC-6a Switching of transformers.
AC-6b Switching of capacitor banks.
AC-7a Slightly inductive loads in household appliances and similar applications.
AC-7b Motor-loads for household applications.
AC-8a Hermetic refrigerant compressor motor control with manual resetting of overload releases.
AC-8b Hermetic refrigerant compressor motor control with automatic resetting of overload releases.
DC-1 Non-inductive or slightly inductive loads. resistance furnaces.
DC-3 Shunt-motors: starting. plugging. Inching Dynamic breaking of d.c. motors.
DC-5 Series-motors : starting. plugging. Inching Dynamic breaking of d.c. motors.
DC-6 Switching of Incandescent lamps.
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