JRS2(3UA)系列熱繼電器適用于交流50/60HZ,電壓至660-1000V,電流至630A的*工作或間斷*工作的一般
交流電動機的過載保護,具有斷相保護,溫度補償,脫扣指示功能,并能自動與手動復位,可與接觸器接插安
裝,也可獨立安裝。
JRS2(3UA)thenrmal relay is suitable for A.C.50Hz or60Hz,voltage up to 600-1000V and current up
to 630A,general AC motor of long or discontinuous long operation,used as overload protection and
has the funetions of breaking phase protection ,temperature compe,and trip indication.It can au- tomatically and passively get back.It can be fixed with contactor together also be independtly
fixed.
二、型號及含義 Types and meaning
三、動作特性:三相負載平衡時的動作時間 Motion characteristic:Three-phase balance motion time
序號 No | 整定電流倍數 Set current cinles | 動作時間 Motion time | 起始條件 Start conidition | 環境溫度 Temperature | ||
1 | 1.05 | >2h | 冷態 Start condition | |||
2 | 1.2 | <2h | 熱態 Heat state (按序號1試驗后 Following the No1 test) | 20±5℃ | ||
3 | 1.5 | <4min | ||||
4 | 7.2 | 10A | 2S | ≤63A | 冷態 Cold state | |
10A | 4S | >63A |
四、斷相動作性能 Phase-losing motion characteristic
序號 No | 額定電流倍數 Set current cinles | 動作時間 Motion time | 起始條件 Start condition | 環境溫度 Temperature | |
任意二相 Arbitrary two phase | 第三相 Three phase | ||||
1 | 1.0 | 0.9 | >2h | 冷態 Cold state | 20±5℃ |
2 | 1.15 | 0 | <2h | 熱態 Heat state (按序號1試驗后 Following the No1 test) |
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獨立安裝,與接觸器相配時須用導線
六、脫扣特征 TRIP CHARACTERISTIC
熱繼電器的手動復位時間應不大于2min,自動復位時間不大于5min
Thermal relay manual closing time is 2min or below,automatic is 5min or below
七、外形及安裝尺寸 OUTLINE AND MOUNTING DIMENSIONS
圖一JRS2-12.5型 圖二JRS2-25型
圖三JRS2-32型 圖四JRS2-63型
圖五JRS2-80型 圖六JRS2-180型
圖七JRS2-400-630型 |
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