Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAZ811201R1004 — Thermal overload relay
relayPart number: 1SAZ811201R1004
ABB 1SAZ811201R1004 is the TF65-47 three-pole thermal overload relay for motor overload and phase-failure protection. It has a 36–47 A adjustable setting, trip class 10, selectable manual or automatic reset, and one normally closed trip contact and one normally open signal contact. It includes temperature compensation, a STOP function and trip indication.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ811201R1004 |
| 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 TF65-47 |
| 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 | 36–47 A |
| Rated Operational Voltage | Auxiliary circuit 600 V AC/DC; main circuit 690 V AC / 440 V DC |
| Rated Operational Current (I e ) | 47 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 | 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 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 2.1 ... 3.6 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 | 10 |
| Reset Method | 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 ABB 1SAZ811201R1004 provide?
ABB identifies 1SAZ811201R1004 as TF65-47, with an adjustable overload setting of 36–47 A and trip class 10. Check the motor nameplate current and the protection design before selecting the relay.
What protection does the TF65-47 provide, and does it replace short-circuit protection?
The three-pole thermal relay provides motor overload and phase-failure protection. Separate short-circuit protection is required; its selection depends on the complete installation and coordination requirements.
How is the TF65-47 mounted and which contactors should be checked?
The TF65-47 is intended for direct mounting on ABB AF40 to AF65 contactors. A separate single-mounting kit is also available. Confirm the exact contactor and starter configuration before ordering; provide equipment identification or serial number if fitment is uncertain.
Does the TF65-47 have manual and automatic reset and auxiliary contacts?
Yes. Reset can be selected as manual or automatic. The relay has one normally closed trip contact and one normally open signal contact, plus trip indication and a STOP function.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.