Genuine ABB TF140DU-135, order code 1SAZ431201R1003: Thermal Overload Relay 100-135 A, Class 10A, 1NO+1NC.
The TF range is the overload relay series designed for ABB AF contactors; the setting dial covers a current band, so the replacement must have the band that contains the motor full-load current.
More ABB contactors, overload relays and control parts: ABB range.
Technical data
| ABB type | TF140DU-135 |
|---|---|
| ABB order code | 1SAZ431201R1003 |
| Product Name | Thermal Overload Relay |
| Rated Operational Current AC-3 | 135 A |
| Number of Auxiliary Contacts NO | 1 |
| Number of Auxiliary Contacts NC | 1 |
| Setting Range | 100 … 135 A |
| Rated Operational Current | 135 A |
| Trip Class | class 10A |
| Rated Operational Voltage | Auxiliary Circuit 440/500 V DC/V AC Main Circuit 690 V AC |
| Rated Insulation Voltage | 690 V |
| Rated Impulse Withstand Voltage | Auxiliary Circuit 6 kV Main Circuit 8 kV |
| Number of Poles | 3 |
| Number of Protected Poles | 3 |
| Suitable For | AF116 AF140 |
| Conventional Free-air Thermal Current | Auxiliary Circuit NC 10 A Auxiliary Circuit NO 6 A |
| Rated Frequency | Auxiliary Circuit 50 Hz Auxiliary Circuit 60 Hz Auxiliary Circuit DC Main Circuit 60 Hz Main Circuit 50Hz Main Circuit DC |
| Degree of Protection | Housing IP20 Main Circuit Terminals IP10 |
| Wire Stripping Length | Auxiliary Circuit 9 mm Main Circuit 25 mm |
| Tightening Torque | Auxiliary Circuit 0.8 … 1.2 N·m Main Circuit 8 … 10 N·m |
| Mounting Position | Position 1 to 5 |
| Power Loss | at Rated Operating Conditions per Pole 3.2 … 5.8 W |
Key data (per ABB)
- Setting Range: 100 … 135 A
- Trip Class: class 10A
- Suitable For: AF116 AF140
- Rated Operational Current AC-3: 135 A
- Ambient Air Temperature Compensation: Yes
Typical applications
- Pumps, fans and compressors
- Star-delta starters
- Direct-on-line motor starters with AF contactors
- Replacement of a failed overload relay
- Conveyors and machine motors
Compatibility and replacement
Order with the full type TF140DU-135 or the order code 1SAZ431201R1003; in ABB type designations the last digits select the current range or the coil voltage, so a part with a different suffix is not always a drop-in replacement.
All values in the table are from ABB’s official product data; if your old unit differs, send a photo of its label and we will check it.
What to check first
- Contactor size it mounts on
- Setting range versus the motor full-load current
- Reset mode (manual/automatic)
Frequently asked questions
What is the protection rating?
Housing IP20 Main Circuit Terminals IP10, according to ABB’s product data.
Which standards does it meet?
IEC/EN 60947-1 IEC/EN 60947-4-1 IEC/EN 60947-5-1 UL 60947-1 UL 60947-4-1, according to ABB’s product data.
What is the AC-3 rating?
135 A, according to ABB’s product data.
Can I get the datasheet?
The official manufacturer data is the source of the technical values above; we can send the datasheet with the quotation on request.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
How to order
Message us the order number and quantity. For breakdowns, tell us the delivery address and we will offer the fastest shipping option. If the exact part is discontinued, we confirm the official successor before quoting.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
