ABB TA series thermal relay

Thermal overload relays and electronic overload relays are mainly used in connection with AX series contactors to protect motors with rated operating voltages up to 690V AC or 800V DC.
Product range
Standard relay
Model :TA25DU-M, TA42DU-M, TA75DU-M,
TA80DU, TA11ODU, TA200DU
E16DU, E45DU, E80DU, E140DU,
EF205, EF370, E500DU, E800DU,
E1250DU

·TA25-TA200 thermal overload relay
Directly connected to the main circuit of the motor, allowing the rated current of the motor to pass through.
·E16DU-E1250DU electronic overload relay
Advanced electronic technology, adjustable trip grade, with higher protection accuracy.

1. Thermal overload relay has setting current level, in line with international and domestic standards, setting current is the rated current of the motor, not trip current
(Do not trip when the current is set at 1.05x1, trip when the current is set at 1.2x1).
2. The trip current level of the electronic overload relay 10,20,30 can be selected, and the protection accuracy is higher than that of the ordinary thermal overload relay (±10%), with a wider current setting range
3. When the free trip mechanism fails, the trip state cannot be changed even if the reset button is pressed
4. Ambient temperature compensation
5. Lack of phase protection, in line with IEC 60947-4-1 standard:
It can shorten the operation time of the relay in case of phase loss accident, thus improving the motor protection function in the setting range
Trip category :10A:TA... DU
6. Reset the test function
Auxiliary contact:
Has 2 auxiliary contacts
One normally closed contact, marked 95-96
One normally open contact, marked 97-98
Electrical isolation of 2 contacts, making it suitable for application in 2 different lines (control loop and signal indicating loop)