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[VIP第4年] 指数:3
热继电器主要用于交流频率50Hz和60Hz，额定电压至690V，额定电流至800A的电力系统中，作为三相交流电动机的过载保护和断相保护。
延迟型（带饱和电抗器）特别适用于起动时间长的电动机负载。热过载继电器与上级保护的塑壳断路器可以轻松实现协调保护。
电流 |
标准（2热动元件）
|
3热动元件
|
延迟型（带饱和电抗器）
|
|||||
过载保护
|
过载、断相保护
|
过载保护
|
过载、断相保护
|
|||||
起动器用
|
单独安装
|
起动器用
|
单独安装
|
起动器用
|
单独安装
|
起动器用
|
单独安装
|
|
N12
|
TH-N12
|
注1
|
TH-N12KP
|
注1
|
TH-N12SR
|
注1
|
－
|
－
|
N18
|
TH-N18
|
－
|
TH-N18KP
|
－
|
－
|
－
|
－
|
－
|
N20
|
TH-N20
|
TH-N20KP
|
TH-N20SR
|
TH-N20KPSR
|
||||
N20TA
|
TH-N20TA
|
－
|
TH-N20 |
－
|
TH-N20 |
－
|
TH-N20 |
－
|
N60
|
TH-N60
|
TH-N60KP
|
TH-N60SR
|
TH-N60KPSR
|
||||
N60TA
|
TH-N60TA
|
－
|
TH-N60 |
－
|
TH-N60 |
－
|
TH-N60 |
－
|
N120
|
TH-N120
|
TH-N120KP
|
TH-N120SR
|
TH-N120KPSR
|
||||
N120TA
|
TH-N120TA
|
TH-N120 |
TH-N120 |
TH-N120 |
TH-N120 |
－
|
TH-N120 |
－
|
N220
|
TH-N220RH
|
TH-N220HZ
|
TH-N220 |
TH-N220 |
TH-N220 |
TH-N220 |
TH-N220 |
TH-N220 |
N400
|
TH-N400RH
|
TH-N400HZ
|
TH-N400 |
TH-N400 |
TH-N400RHSR
|
TH-N400HZSR
|
TH-N400 |
TH-N400 |
N600
|
TH-N600
|
TH-N600KP
|
TH-N600SR
|
TH-N600KPSR
|
||||
