TA110DU-110 motor protection review: current range and starter coordination
TA110DU-110 is an ABB thermal overload relay designation for motor-circuit protection. The complete device label determines the adjustment range, trip class, reset mode, phase-loss sensitivity and exact contactor attachment. Treat TA110DU-110 as an overload component within a coordinated starter, not as a standalone short-circuit protective device.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Model | TA110DU-110 |
| Product role | Thermal overload relay for motor protection |
| Frame family | TA110DU / TA110DU-110 |
| Current adjustment | Confirm exact adjustment range from device label and ABB coordination table |
| Mounting | Verify contactor size, attachment kit and terminals |
| Protection | Overload protection; upstream short-circuit protection remains required |
Identification note: TA110DU-110. The figures above are selection references; verify the actual label, duty rating, approvals, firmware and options for the exact unit before purchase or engineering release.
Compare the complete code, rating, terminal arrangement, firmware and accessories for TA110DU-110.
Related model references
The following model references belong to the same identifiable family as TA110DU-110; they are configuration alternatives, not automatic substitutes. Compare each complete designation and application before selecting.
- 1SAZ411201R1002 TA110DU-110
- TA110DU-110A
- TA110DU-90
- TA110DU110
- TA110DU90
For the TA110DU-110 record, retain the full type string and do not infer range, rating or compatibility from a shortened family code.
Configuration boundary
Before ordering TA110DU-110, compare the adjustment range with the motor nameplate current, check trip class and reset behavior, and confirm the compatible contactor and connection accessory. Coordinate the upstream fuse or breaker and verify the approved type 1/type 2 starter combination where applicable. Do not substitute an adjacent TA frame based only on appearance.
A TA110DU-110 starter arrangement is selected from the motor full-load current, starting duration, starts per hour, contactor rating and expected fault level. Review whether manual or automatic reset is appropriate to the machine risk controls. The relay should fit the selected contactor mechanically and provide the required auxiliary trip indication to the control circuit.
Safe return to service
Set TA110DU-110 to the approved motor current and verify phase sequence, control contacts, reset function and trip indication. Test under the authorized commissioning procedure and record the setting, overload class and protective-device coordination. Never bypass the relay to keep a motor running after an unexplained trip.
Keep the verified order information for TA110DU-110 with the panel drawing, commissioning record and maintenance history.
