ABB T16-6.3 thermal overload relay with adjustable current range from 4.5 to 6.3 A, designed for industrial motor protection and automation systems.
£52.16
The ABB T16-5.7 Thermal Overload Relay (1SAZ711201R1038) is a dependable electromechanical motor protection device designed to safeguard three-phase motors against overload conditions and phase failure. As part of the proven ABB T16 thermal overload relay series, it delivers reliable motor protection while helping to reduce downtime and extend the operational life of industrial equipment.
Designed for direct mounting onto compatible ABB mini and block contactors, the T16-5.7 combines straightforward installation with dependable performance. Features including temperature compensation, selectable automatic or manual reset, integrated auxiliary contacts, trip indication and a trip-free mechanism make it ideal for demanding industrial motor control applications.
With an adjustable current range of 4.2 to 5.7 A and Trip Class 10 protection, the ABB 1SAZ711201R1038 is well suited to protecting motors used in conveyors, pumps, compressors, fans, machine tools and automated manufacturing equipment.
Thermal overload relays continuously monitor motor current and disconnect the control circuit if prolonged overload or phase loss is detected. This helps prevent motor overheating, insulation failure and premature equipment wear, improving reliability and reducing maintenance costs.
The ABB T16 series is widely used in motor starters and industrial control panels, providing dependable overload protection while integrating seamlessly with ABB contactors for OEM machinery and automation systems.
| Current | 6.3 A |
|---|---|
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | T16 Thermal Overload Relays |
| Product code | 1SAZ711201R1038 |
| Product type | Thermal overload relay |
| Current adjustment range | 4.5 to 6.3 A |
| Rated operational current | 6.3 A |
| Trip class | Class 10 |
| Number of poles | 3 |
| Auxiliary contacts | 1 NO + 1 NC |
| Rated insulation voltage | 690 V AC |
| Auxiliary circuit voltage | 600 V AC/DC |
| Protection rating | IP20 |
| Reset method | Automatic or manual |
| Mounting type | Direct mounting / DIN rail |
| Terminal type | Screw terminals |
| Dimensions (H × W × D) | approx. 76.7 × 45 × 53.5 mm |
| Operating temperature | approx. -25 °C to +60 °C |
| Weight | approx. 0.1 kg |
It protects three-phase electric motors against overload conditions and phase failure, helping prevent overheating and equipment damage.
The overload relay has an adjustable setting range of 4.2 to 5.7 A.
Yes. It includes 1 normally open (NO) signal contact and 1 normally closed (NC) trip contact.
Yes. The reset mode is selectable, allowing either automatic or manual reset depending on the application.
It mounts directly onto compatible ABB B6, BC6, B7, BC7, VB6, VB7 and AS series contactors.
ABB thermal overload relays are trusted by panel builders, OEMs and maintenance engineers worldwide for dependable motor protection, long service life and seamless integration into industrial motor control systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...