ABB RT5/150 transil diode surge suppressor designed for 77–150 V DC contactor control circuits and industrial switching applications.
£48.76
The ABB RT5/150 is a compact transil diode surge suppressor designed to protect DC operated ABB contactors and contactor relays from voltage spikes generated when inductive loads are switched. It helps reduce overvoltage peaks and improve the reliability of industrial control circuits.
This surge suppressor clips directly onto compatible ABB contactors or contactor relay bases without increasing the overall device dimensions. Its fast voltage clipping characteristics help protect sensitive electrical components while maintaining reliable contactor operation.
With a rated control circuit voltage range of 77–150 V DC, the ABB RT5/150 is suitable for ABB DC operated contactors and industrial automation systems where suppression of coil switching surges is required.
Surge suppressors such as the ABB RT5/150 help improve the reliability of industrial control systems by limiting transient overvoltages created during contactor coil switching. This reduces the risk of interference and damage to sensitive electrical components.
The ABB surge suppressor range is designed for machine builders, panel manufacturers and automation engineers requiring dependable protection accessories for low-voltage switching equipment.
| Manufacturer | ABB |
|---|---|
| Series | RT5 Surge Suppressors |
| Model | RT5/150 |
| Ordering code | 1SBN050020R1003 |
| Product type | Surge suppressor |
| Suppression technology | Transil diode |
| Rated control circuit voltage | 77–150 V DC |
| Mounting type | Clip-on contactor mounting |
| Protection rating | IP20 |
| Dimensions (W × D × H) | 30.25 × 32.4 × 10.5 mm |
| Weight | approx. 0.015 kg |
| Operating temperature | -20 to 70 °C |
The RT5/150 is used to suppress voltage spikes generated when DC contactor coils are switched off.
The RT5/150 is designed for 77–150 V DC control circuits.
The surge suppressor clips onto compatible ABB contactors or contactor relay bases without increasing the device dimensions.
The RT5/150 uses transil diode surge suppression technology.
The surge suppressor is typically installed inside industrial control panels and automation systems.
ABB surge suppressors are widely used in industrial control applications to improve switching reliability and protect electrical systems from transient overvoltages.
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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...