Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ211201R1031 — TA25DU-3.1 Thermal Overload Relay 2.2 ... 3.1 A
relayPart number: 1SAZ211201R1031
ABB TA25DU-3.1 (1SAZ211201R1031) is a three-pole thermal overload relay with an adjustable 2.2–3.1 A setting range and trip class 10A. It provides motor overload and phase-failure protection, with selectable manual or automatic reset, one normally open and one normally closed auxiliary contact, and stop, test and trip indication functions.
Looking for ABB 1SAZ211201R1031? This catalogue reference is listed under relay. Send the part number and your equipment details so we can confirm the specification, availability and a quotation including shipping.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ211201R1031 |
| Category | Electrical & controls |
| Published component description | TA25DU-3.1 thermal overload relay, 2.2–3.1 A |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Current setting range | 2.2–3.1 A |
| Trip class | 10A |
| Number of poles | 3 |
| Protected poles | 3 |
| Auxiliary contacts | 1 normally open and 1 normally closed |
| Reset mode | Selectable manual or automatic |
| Rated operational current | 3.1 A |
| Rated operational voltage, main circuit | 690 V AC |
| Rated operational voltage, auxiliary circuit | 500 V AC; 440 V DC |
| Ambient operating temperature | −25 to +55 °C |
| Dimensions, height × width × depth | 80 × 44 × 94 mm |
| Net weight | 0.15 kg |
| Protection degree | Housing IP20; main circuit terminals IP10 |
| Ambient temperature compensation | Yes |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What motor current range does the ABB TA25DU-3.1 cover?
The adjustable overload setting range is 2.2–3.1 A. Compare this range with the motor nameplate current and the application requirements before selection.
What protection and trip class does 1SAZ211201R1031 provide?
This is a three-pole thermal overload relay for motor overload and phase-failure protection, with trip class 10A. Confirm the complete protection scheme for the installation.
Does the TA25DU-3.1 have manual and automatic reset?
Yes. Manual or automatic reset can be selected. It also has stop and test functions and a trip indication. Automatic reset must be assessed for unintended restart risk.
What auxiliary contacts and dimensions does the relay have?
It has one normally open and one normally closed auxiliary contact. The listed dimensions are 80 mm high × 44 mm wide × 94 mm deep.
How can I check whether this relay will replace my existing unit?
Compare the full part number, 2.2–3.1 A setting range, trip class, contactor and mounting arrangement. Provide the contactor model and equipment serial number for fitment verification; compatibility cannot be assumed from appearance alone.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.