Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ431201R1001 — Thermal overload relay
relayPart number: 1SAZ431201R1001
ABB TF140DU-90 (1SAZ431201R1001) is a three-pole thermal overload relay for motor overload and phase-failure protection. It has an adjustable 66–90 A setting range, class 10A trip characteristic, selectable manual or automatic reset, trip indication, and TEST and STOP functions.
Looking for ABB 1SAZ431201R1001? 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.
Availability on request
Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ431201R1001 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TF140DU-90/TF140DU-90-V1000 |
| Product Net Width | 89 mm |
| Product Net Height | 140 mm |
| Product Net Depth / Length | 126 mm |
| Product Net Weight | 0.82 kg |
| Setting Range | 66–90 A |
| Rated Operational Voltage | Main circuit: 690 V AC, 440 V DC; auxiliary circuit: 500 V AC, 440 V DC |
| Rated Operational Current (I e ) | 90 A |
| Rated Frequency (f) | Main and auxiliary circuits: DC, 50/60 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Main circuit: 8 kV; auxiliary circuit: 6 kV |
| Rated Insulation Voltage (U i ) | 690 V |
| Number of Poles | 3 |
| Number of Auxiliary Contacts NC | 1 |
| Number of Auxiliary Contacts NO | 1 |
| Number of Protected Poles | 3 |
| Conventional Free-air Thermal Current (I th ) | Auxiliary Circuit NC 10 A |
| Rated Operational Current AC-15 (I e ) | (120 V) NC 3 A |
| Rated Operational Current DC-13 (I e ) | (125 V) NC 0.25 A |
| Degree of Protection | IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 16 ... 70 mm² |
| Tightening Torque | Auxiliary Circuit 0.8 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Mounting Position | any |
| Power Loss | at Rated Operating Conditions per Pole 2.1 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | (NC:) B600 |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 6-2/0 AWG |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Trip Class | 10A |
| Reset Mode | Selectable manual or automatic |
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 TF140DU-90 provide?
ABB identifies 1SAZ431201R1001 as the TF140DU-90, with an adjustable setting range of 66–90 A and trip class 10A. Check the motor rated current and starting requirements when selecting the relay.
What protection does the TF140DU-90 provide?
This three-pole thermal overload relay is intended to protect motors against overload and phase failure. The TF140DU documentation also specifies a separate short-circuit protective device; selection must suit the complete installation.
Does the TF140DU-90 support manual and automatic reset?
Yes. Manual or automatic reset can be selected. The relay also has a trip indication and TEST and STOP functions.
What auxiliary contacts does the TF140DU-90 have?
The TF140DU has one normally closed auxiliary contact, 95–96, and one normally open contact, 97–98. Their current ratings depend on voltage and utilization category.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.