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1SAZ811201R1003 — Thermal overload relay
relayPart number: 1SAZ811201R1003
ABB 1SAZ811201R1003, type TF65-40, is a three-pole thermal overload relay for motor overload and phase-failure protection. It has a 30–40 A adjustable current range, class 10 trip characteristic, selectable manual or automatic reset, and one normally closed and one normally open auxiliary contact.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ811201R1003 |
| 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 TF65-40 |
| 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 | 30–40 A |
| Rated Operational Voltage | Auxiliary circuit: 600 V AC/DC; main circuit: 690 V AC, 440 V DC |
| Rated Operational Current (I e ) | 40 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; main circuit terminals IP10 |
| 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 ... 3.7 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 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Catalogue information may contain errors or be out of date.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 the ABB TF65-40 provide?
The 1SAZ811201R1003 has an adjustable current range of 30–40 A and trip class 10. Check the motor nameplate and the starter design before selecting the relay.
Which contactors can the TF65-40 be mounted with?
The product catalogue lists ABB AF40, AF52 and AF65 contactors. Direct contactor mounting is supported; separate mounting requires an accessory kit. Confirm the contactor reference and equipment serial number before ordering.
Does this overload relay protect against phase failure?
The TF65-40 is designed to protect motors against overload and phase failure. It is a thermal overload relay used with a contactor; verify the complete protection arrangement for the installation.
What reset options and auxiliary contacts are provided?
Manual or automatic reset is selectable. The relay has one normally closed trip contact and one normally open signal contact, plus a trip indication and STOP function.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.