Technical illustration. Published product/series reference; confirm the exact configuration and supplied appearance. Images are for reference only. The supplied part’s appearance may differ.
1SAZ811201R1002 — Thermal overload relay
relayPart number: 1SAZ811201R1002
ABB 1SAZ811201R1002 is the TF65-33 thermal overload relay, with an adjustable 25–33 A current setting and class 10 trip characteristic. It provides motor overload and phase-failure protection, with temperature compensation, trip indication, selectable manual or automatic reset, and one NC trip contact and one NO signal contact.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ811201R1002 |
| Category | Electrical & controls |
| Ex Operating Instructions | ATEX - Operating instructions for thermal overload relay TF65 for potentially explosive areas |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TF65-33 |
| Product Net Width | 54.9 mm |
| Product Net Height | 101.4 mm |
| Product Net Depth / Length | 106.9 mm |
| Product Net Weight | 0.372 kg |
| Setting Range | 25–33 A |
| Rated Operational Voltage | Auxiliary circuit: 600 V AC/DC; main circuit: 690 V AC / 440 V DC |
| Rated Operational Current (I e ) | 33 A |
| Rated Frequency (f) | Auxiliary Circuit 50 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Auxiliary Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 690 V |
| Number of Poles | 3P |
| 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 6 A |
| Rated Operational Current AC-15 (I e ) | (120 V) NC 3 A |
| Rated Operational Current DC-13 (I e ) | (125 V) NC 0.55 A |
| Degree of Protection | Housing IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 2.5 ... 10 mm² |
| Tightening Torque | Auxiliary Circuit 1 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Mounting Position | 1 ... 6 |
| Power Loss | at Rated Operating Conditions per Pole 2.2 ... 3.8 W |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Contact Rating UL/CSA | (NC:) B600 |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Trip Class | Class 10 |
| 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 is the current setting range and trip class of ABB 1SAZ811201R1002?
The TF65-33 has an adjustable current setting range of 25–33 A and a class 10 trip characteristic. Confirm that the motor and starter requirements fall within the relay’s ratings before selecting it.
What protection does the TF65-33 provide?
This thermal overload relay protects motors against overload and phase failure. It also has temperature compensation and a trip indication.
Can the TF65-33 be mounted to an ABB contactor?
The TF65-33 is listed for direct mounting on ABB AF40 through AF65 contactors; a separate mounting kit is also available. Confirm the exact contactor and equipment configuration before ordering, and provide the equipment serial number if fitment is uncertain.
Does the TF65-33 support manual and automatic reset?
Yes. The relay has selectable manual or automatic reset, one normally closed trip contact, one normally open signal contact and a STOP function.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.