Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ321201R1003 — TA75DU-42 Thermal Overload Relay 29 ... 42 A
relayPart number: 1SAZ321201R1003
ABB TA75DU-42 (1SAZ321201R1003) is a three-pole thermal overload relay with a 29–42 A adjustable current range and class 10A trip characteristic. It provides motor overload and phase-failure protection, with one normally closed trip contact, one normally open signal contact, and selectable manual or automatic reset.
Looking for ABB 1SAZ321201R1003? 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 | 1SAZ321201R1003 |
| Category | Electrical & controls |
| Published component description | TA75DU-42 Thermal Overload Relay 29 ... 42 A |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Current setting range | 29–42 A |
| Trip class | 10A |
| Number of poles | 3 |
| Auxiliary contacts | 1 normally open + 1 normally closed |
| Reset mode | Selectable manual or automatic |
| Rated operational voltage, main circuit | 690 V AC |
| Operating ambient temperature | −25 to +55 °C |
| Terminal type | Screw terminals |
| Dimensions | 58 mm wide × 92 mm high × 111 mm deep |
| Net weight | 0.335 kg |
| Degree of protection | Housing IP20; main circuit terminals IP10 |
Catalogue information may contain errors or be out of date.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 current range and trip class does the ABB TA75DU-42 have?
The TA75DU-42 has an adjustable current setting range of 29–42 A and a class 10A trip characteristic. Check the motor nameplate and the protection requirements before selecting the relay.
Does the TA75DU-42 provide phase-loss protection and reset options?
The relay is intended to protect motors against overload and phase failure. It offers selectable manual or automatic reset, a trip indication, and stop and test functions.
What auxiliary contacts are included on 1SAZ321201R1003?
The relay has one normally closed trip contact and one normally open signal contact. The auxiliary circuit has its own ratings; do not assume the 42 A motor-current setting is the auxiliary contact rating.
How can I check whether this overload relay fits my existing starter?
Check the installed relay part number, the contactor model, motor nameplate current and required trip class. The relay is listed for certain ABB contactors, but fitment depends on the particular assembly. Provide the equipment model and serial number, if available, for verification before ordering.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.