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1SAZ721201R1047 — Thermal overload relay
relayPart number: 1SAZ721201R1047
ABB 1SAZ721201R1047 is the TF42-16 thermal overload relay, with a 13–16 A adjustable current range and class 10 tripping. It is designed for motor overload and phase-failure protection and offers selectable manual or automatic reset, a stop function and trip indication. It mounts directly on compatible contactors; a separate kit is available for standalone mounting.
Looking for ABB 1SAZ721201R1047? 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.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAZ721201R1047 |
| Category | Electrical & controls |
| Ex Operating Instructions | ATEX - Operating instructions for thermal overload relay TF42 for potentially explosive areas |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TF42-16 |
| Product Net Width | 45 mm |
| Product Net Height | 88.3 mm |
| Product Net Depth / Length | 70.5 mm |
| Product Net Weight | 0.13 kg |
| Setting Range | 13–16 A |
| Rated Operational Voltage | Auxiliary Circuit 600 V AC/DC |
| Rated Operational Current (I e ) | 16 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 | IP20 |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 0.75 ... 4 mm² |
| Tightening Torque | Auxiliary Circuit 1 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 9 mm |
| Power Loss | at Rated Operating Conditions per Pole 1.3 ... 2.2 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 18-10 AWG |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Extended product type | TF42-16 |
| Trip class | 10 |
| Reset mode | Selectable manual or automatic |
| Terminal type | Screw connection |
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 TF42-16 cover?
ABB identifies 1SAZ721201R1047 as the TF42-16 thermal overload relay. Its adjustable current range is 13–16 A and its trip class is 10. Check the motor nameplate current and application before selecting the relay.
Does the TF42-16 offer manual and automatic reset?
Yes. The TF42 series offers selectable manual or automatic reset, along with a stop function and trip indication. The appropriate reset mode depends on the machine control system and restart safety requirements.
How is the TF42-16 mounted, and what details should I check?
The TF42-16 is designed for direct mounting on compatible ABB AF contactors; a separate mounting kit is available for standalone mounting. Confirm the contactor model and motor current before ordering. If equipment fitment is uncertain, provide the equipment model and serial number for verification.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.