Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ211201R1051 — TA25DU-25 Thermal Overload Relay 18 ... 25 A
relayPart number: 1SAZ211201R1051
ABB TA25DU-25 (1SAZ211201R1051) is a thermal overload relay with an adjustable 18–25 A current setting and trip class 10A. It provides motor overload protection with phase-loss sensitivity and has selectable manual or automatic reset, one normally closed trip contact and one normally open signal contact.
Looking for ABB 1SAZ211201R1051? 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 | 1SAZ211201R1051 |
| Category | Electrical & controls |
| Published component description | TA25DU-25 Thermal Overload Relay 18 ... 25 A |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Current setting range | 18–25 A |
| Trip class | 10A |
| Number of poles | 3 |
| Auxiliary contacts | 1 normally open and 1 normally closed |
| Reset | Selectable manual or automatic |
| Phase-loss sensitivity | Yes |
| Ambient air temperature | −25 to +55 °C |
| Connection type | Screw terminals |
Catalogue information may contain errors or be out of date.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 TA25DU-25 provide?
ABB 1SAZ211201R1051 has an adjustable current setting range of 18–25 A and trip class 10A. Check the motor nameplate current and the installation requirements before selecting the relay.
Does the TA25DU-25 protect against phase loss?
Yes. This thermal overload relay is designed for motor overload protection and is sensitive to phase loss. A separate short-circuit protective device must be selected for the installation.
Does the TA25DU-25 support manual and automatic reset?
Yes, manual or automatic reset can be selected. Automatic reset can allow a motor to restart unexpectedly after a trip, creating a risk of injury or equipment damage.
Can this relay be mounted separately from a contactor?
The relay can connect directly to a block contactor; a separate mounting kit is also available. Confirm the contactor model and equipment serial number before ordering to verify the intended installation.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.