ABB T16-4.2 thermal overload relay with adjustable current range from 3.1 to 4.2 A, designed for motor protection in industrial automation and motor starter applications.
£52.16
The ABB T16-4.2 Thermal Overload Relay (1SAZ711201R1035) is a high-quality electromechanical motor protection device designed to protect three-phase motors against overload conditions and phase failure. As part of the proven ABB T16 thermal overload relay series, it provides reliable and fast motor protection, helping to maximise equipment uptime and extend motor service life in industrial applications.
Designed for direct mounting onto compatible ABB mini and block contactors, the T16-4.2 offers straightforward installation and dependable performance. Its temperature-compensated design, selectable automatic or manual reset, integrated auxiliary contacts and clear trip indication make it an excellent choice for modern motor control systems.
With an adjustable current range of 3.1 to 4.2 A and Trip Class 10 protection, the ABB 1SAZ711201R1035 is ideal for protecting industrial motors used in conveyors, pumps, compressors, fans, packaging machinery and manufacturing equipment.
Thermal overload relays continuously monitor motor current and disconnect the control circuit when sustained overload conditions occur. This protects motors from overheating, insulation damage and premature failure while improving the reliability and longevity of industrial machinery.
The ABB T16 series is widely specified for motor starters and control panels where dependable overload protection and seamless integration with ABB contactors are essential. Its compact construction makes it suitable for OEM equipment, manufacturing plants and industrial automation systems.
| Current | 4.2 A |
|---|---|
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | T16 Thermal Overload Relays |
| Product code | 1SAZ711201R1035 |
| Product type | Thermal overload relay |
| Current adjustment range | 3.1 to 4.2 A |
| Rated operational current | 4.2 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 motors against overload conditions and phase failure, helping prevent overheating and unexpected equipment downtime.
The relay has an adjustable overload setting range of 3.1 to 4.2 A.
Yes. It features 1 normally open (NO) signal contact and 1 normally closed (NC) trip contact.
Yes. The ABB T16-4.2 supports both automatic and manual reset, allowing it to suit different industrial control applications.
The relay mounts directly onto compatible ABB mini and block contactors, providing a compact and efficient motor starter solution.
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...