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1SAZ721201R1051 — Thermal overload relay
reléReferencia de la pieza: 1SAZ721201R1051
ABB TF42-24 (1SAZ721201R1051) is an electromechanical thermal overload relay for motor overload and phase-failure protection. It has a 20–24 A adjustable current range, trip class 10, selectable manual or automatic reset, and normally closed trip and normally open signal contacts. It connects directly to block contactors; a single-mounting kit is available as an accessory.
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Especificaciones técnicas
| Fabricante | ABB |
|---|---|
| Referencia de la pieza | 1SAZ721201R1051 |
| Categoría | Electricidad y control |
| Ex Operating Instructions | ATEX - Operating instructions for thermal overload relay TF42 for potentially explosive areas |
| Time-Current Characteristic Curve | Tripping characteristic - Thermal overload relay TF42-24 |
| Product Net Width | 45 mm |
| Product Net Height | 88.3 mm |
| Product Net Depth / Length | 70.5 mm |
| Product Net Weight | 0.145 kg |
| Setting Range | 20–24 A |
| Rated Operational Voltage | Main circuit: 690 V AC; auxiliary circuit: 600 V AC/DC |
| Rated Operational Current (I e ) | 24 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 2.5 ... 10 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 1.8 ... 2.6 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 14-6 AWG |
| Published component type | Thermal overload relay |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Trip Class | 10 |
| Reset | Selectable automatic or manual |
| Auxiliary Contacts | 1 normally closed trip contact and 1 normally open signal contact |
| Ambient Air Temperature | Operation and compensated operation: −25 to +60 °C; storage: −50 to +80 °C |
La información del catálogo puede contener errores o estar desactualizada. Las especificaciones completas y los datos verificados están disponibles bajo petición. Confirme con nosotros la referencia y la compatibilidad con su equipo antes de realizar el pedido.
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