T Thermal Relay
Application
The relay is suitable for using in the power circuit up to rated voltage 660V, rated current 500A 50Hz or 60Hz for overload and loss of phase protection of three phases induction motor and often combined with B series AC contactor into magnetic starter.
T16 & T25 thermal relays have a friction trip operating mechanism with loss of phase running protection, pull back spring trip operating mechanism (jump mechanism) with loss of phase protection for T85 & TSA45, backpack jump
mechanism for T170 & T105, main circuit with instrument transformer jump mechanism with loss of phase for T250 & T370.
Specifications
Type
T16
T25
TSA45
T85
T105
T170
T250
T370
Rated current (A)
16
25
45
85
105
170
250
370
Thermal element setting current range (A)
0.11-17.6
0.17-32
0.28-48
6.0-100
27-115
90-200
100-400
100-500

Auxiliary contacts
Number
1NO,1NC
1NO,1NC
1NO,1NC,2NC
1NO,1NC
Rated operating current (A)
220V:3 380V:2 500V:1
220V:3、1.7 380V:2、1.3 500V:1.5
220V:3、2.5 380V:2、1.3 500V:1.5、0.8
220V:3、1.7 380V:2、1.3 500V:1.5
  
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