Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ211201R1035 — TA25DU-5.0 Thermal Overload Relay 3.5 ... 5.0 A
relayPart number: 1SAZ211201R1035
ABB TA25DU-5.0 (1SAZ211201R1035) is a three-pole thermal overload relay with a 3.5–5.0 A setting range and trip class 10A. Designed for motor overload and phase-loss protection, it has screw terminals, selectable manual or automatic reset, and one normally open and one normally closed auxiliary contact.
Looking for ABB 1SAZ211201R1035? 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 | 1SAZ211201R1035 |
| Category | Electrical & controls |
| Published component description | TA25DU-5.0 Thermal Overload Relay 3.5 ... 5.0 A |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Current setting range | 3.5–5.0 A |
| Trip class | 10A |
| Main poles | 3 |
| Auxiliary contacts | 1 normally open and 1 normally closed |
| Reset | Selectable manual or automatic |
| Terminal type | Screw terminals |
| Main circuit rated operational voltage | 690 V AC |
| Auxiliary circuit rated operational voltage | 500 V AC; 440 V DC |
| Operating ambient temperature | −25 to +55 °C |
| Dimensions | 44 × 80 × 94 mm (width × height × depth) |
| Net weight | 0.15 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Catalogue information may contain errors or be out of date.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 does the TA25DU-5.0 cover?
ABB lists an adjustable setting range of 3.5–5.0 A and trip class 10A. Check the motor nameplate and the protection requirements before selecting the relay; a 5 A setting is not suitable for every 5 A-labelled application.
Does the TA25DU-5.0 protect against phase loss?
The three-pole thermal overload relay is phase-loss sensitive and is intended to protect motors against overload and phase failure. The overall motor circuit still needs appropriate short-circuit protection.
Can this relay be reset manually or automatically?
Yes. The TA25DU-5.0 has selectable manual or automatic reset, plus test and stop functions and a trip indication. It has one normally closed trip contact and one normally open signal contact.
How can I check whether this is the right replacement relay?
Compare the existing relay part number and 3.5–5.0 A setting range, as well as the motor and contactor details. The relay connects to compatible block contactors, but suitability for your specific assembly cannot be assumed. Provide the contactor model and equipment serial number for verification.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.