How to confirm TA75DU-52M in service
Keep the entire TA75DU-52M designation with the maintenance request. TA75DU-52M belongs to a specific equipment design; the visible family name alone is insufficient for a replacement decision.
Product data and selection limits
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | TA75DU-52M |
| Product family | TA75DU-M |
| Component role | thermal motor overload relay |
| Setting range | 36-52 A |
| Trip class | 10A |
| Order code | 1SAZ321201R2004 |
| Application | Match motor and compatible contactor |
| Final configuration | Confirm exact nameplate, hardware revision and order options before purchase |
For TA75DU-52M, the table identifies useful checks but does not replace the marked unit and its complete technical documentation. Confirm option and revision details before purchase.
What the replacement must match
Before substituting TA75DU-52M, compare motor current, relay adjustment, contactor coupling, reset mode and short-circuit coordination. Check the exact code and nameplate against the purchase specification.
Do not call another TA75DU-M designation a direct replacement for TA75DU-52M solely because its enclosure looks similar. Ratings and fitted options require separate confirmation.
Field fault isolation
For an unexplained TA75DU-52M fault, note the present indicators and alarm history. Measure only at safe accessible test points according to the plant procedure.
When TA75DU-52M interacts with a controller or protective system, verify the upstream command and downstream response independently before deciding which component failed.
Equipment role
The installed role of TA75DU-52M is to protect the installed motor from sustained overload. Write down the connected circuit, controller or process tag and the equipment being served.
A failure around TA75DU-52M may also arise from the supply, sensor, wiring, communications or mechanical accessory. Capture the symptoms before removing parts.
Commissioning handover
After fitting TA75DU-52M, test overload indication, trip contacts and reset. Record the test method, readings, settings and any open deviation.
Release TA75DU-52M for service only after the relevant protection, communication or measurement response has been witnessed and the asset record is updated.
Related family designations
These TA75DU-M designations are included with TA75DU-52M to support model searches and enquiries. Individual specifications can differ, and they are not automatically interchangeable.
- TA75DU-80M
Ordering record
Retain the TA75DU-52M nameplate image, purchase code and configuration note with the quotation. Include the commissioning results when the unit is installed.
If a future TA75DU-52M replacement is required, compare its complete code with the installed record again rather than relying on this page alone.
