ABB Pluto B20 v2 2TLA020070R4600 is a compact 24 V DC programmable safety controller with 20 I/O, Pluto safety bus and failsafe relay and transistor outputs for industrial machine safety applications.
£1,083.78
The ABB Pluto B20 v2 (2TLA020070R4600) is a compact and powerful programmable safety controller (Safety PLC) designed for machine safety applications and the control of safety-related circuits. As part of the ABB Pluto safety PLC range, it combines configurable safety I/O, failsafe outputs and integrated Pluto safety bus communication for flexible industrial machine safety systems.
The Pluto B20 v2 provides 20 total I/O, comprising 8 dedicated failsafe inputs, 8 configurable failsafe inputs/non-failsafe outputs, 2 individually failsafe relay outputs and 2 individually failsafe transistor outputs. This flexible I/O architecture enables safety sensors, emergency stops, guard switches and other protective devices to be incorporated into programmable machine safety functions.
Operating from a 24 V DC supply, the Pluto B20 v2 can communicate through the Pluto safety bus and is programmed using ABB Pluto Manager software. Its compact 84 × 45 × 120 mm format and DIN-rail-oriented design make it well suited to safety control installations where panel space and flexible system integration are important.
Programmable safety controllers such as the ABB Pluto B20 v2 allow multiple machine safety functions to be implemented within one programmable platform. Safety inputs can monitor protective devices while failsafe relay and transistor outputs provide controlled switching for safety-related machine functions, reducing the need for numerous individual safety relays in more complex installations.
The Pluto platform is designed for distributed machine safety and supports communication over the Pluto safety bus. Combined with ABB Pluto Manager programming software, this enables machine builders and automation engineers to configure application-specific safety logic and integrate multiple safety devices into coordinated industrial safety systems.
| Manufacturer | ABB |
|---|---|
| Series | Pluto |
| Model | Pluto B20 v2 |
| Part number | 2TLA020070R4600 |
| Product type | Programmable safety controller / Safety PLC |
| Supply voltage | 24 V DC |
| Total I/O | 20 |
| Failsafe inputs | 8 (I0–I7) |
| Configurable I/O | 8 failsafe inputs / non-failsafe outputs (IQ10–IQ17) |
| Failsafe relay outputs | 2 (Q0–Q1) |
| Failsafe transistor outputs | 2 (Q2–Q3) |
| Analogue input | 1 × 0–27 V on I5 |
| Maximum total IQ load | 2.5 A |
| Safety bus | Pluto safety bus |
| Performance level | Up to PL e |
| Safety category | Category 4 |
| Terminal protection rating | IP20 |
| Enclosure protection rating | IP40 |
| Connection type | Screw connection |
| Conductor cross-section | 0.34–4 mm² |
| Height | 84 mm |
| Width | 45 mm |
| Depth | 120 mm |
| Weight | 0.39 kg |
| HS Code | 85371091 |
| Country of Manufacture | Poland |
The Pluto B20 v2 is a programmable safety controller designed to monitor and control safety functions in industrial machinery and automated systems.
The controller provides 20 total I/O, consisting of 8 dedicated failsafe inputs, 8 configurable failsafe inputs/non-failsafe outputs, 2 failsafe relay outputs and 2 failsafe transistor outputs.
The ABB Pluto B20 v2 operates from a 24 V DC control supply.
Yes. The Pluto B20 v2 has integrated Pluto safety bus support, enabling communication within distributed ABB Pluto machine safety systems.
The controller has 2 individually failsafe relay outputs (Q0–Q1) and 2 individually failsafe transistor outputs (Q2–Q3).
The ABB Pluto B20 v2 is designed for safety applications requiring performance levels up to PL e and Category 4 safety architectures when correctly applied within the complete safety system.
The controller is programmed using ABB Pluto Manager, the software environment used to configure and program Pluto safety PLC applications.
The controller measures 84 mm high, 45 mm wide and 120 mm deep and has a net weight of approximately 0.39 kg.
ABB Pluto programmable safety controllers provide machine builders, system integrators and automation engineers with a flexible platform for implementing dependable safety functions across industrial machinery, production equipment and automated manufacturing systems.
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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...