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2TLA020055R3300 ABB OCB-4A Connection Box
ABB 2TLA020055R3300 OCB-4A is an IP67-rated 24 V DC connection box for individually connecting up to four voltage-free safety sensors using M12-5 sensor connectors and an M12-12 control cabinet connection.
£173.61
Why Choose the ABB 2TLA020055R3300 OCB-4A Connection Box?
The ABB 2TLA020055R3300 is an OCB-4A safety sensor connection box designed to simplify the connection of multiple safety devices to a machine safety control system. As part of ABB’s safety accessories range, the OCB-4A provides connections for up to four safety sensors while allowing a single multicore cable to run between the connection box and the control cabinet.
The OCB-4A is specifically designed for individual connection of voltage-free safety sensors. It provides four M12 5-pin female sensor connectors, with each safety signal connected individually so that the connected devices can perform different safety functions. This arrangement is useful where separate safety devices need to remain independently identifiable within the machine safety system.
Connection from the OCB-4A to the safety controller in the control cabinet is provided through an M12 12-pin male connector. Designed for 24 V DC industrial control systems and providing IP67 protection, the 2TLA020055R3300 offers a compact and robust method of reducing machine cabling while maintaining individual safety signal connections.
Key Advantages
- Connection box for up to four voltage-free safety sensors.
- Allows individual connection of safety signals for different safety functions.
- Four M12 5-pin female sensor connectors.
- Single M12 12-pin male connection to the safety controller in the cabinet.
- Reduces cabling between field-mounted safety sensors and the control cabinet.
- 24 V DC rated operating voltage for industrial safety systems.
- IP67 protection rating for installation in demanding machinery environments.
Key Features
- ABB OCB-4A Connection Box.
- ABB order code 2TLA020055R3300.
- Designed for up to four safety sensors.
- Suitable for safety devices with voltage-free contacts and compatible pin configuration.
- Individual safety signal connection rather than series connection.
- Four M12-5 female connections for safety sensors.
- One M12-12 male connection for connection to the control cabinet.
- 24 V DC rated control supply voltage.
- IP67 degree of protection.
- Compact black housing for industrial machine installations.
Simplified Individual Safety Sensor Connectivity
The ABB OCB-4A reduces the amount of cabling required between safety devices on a machine and the electrical control cabinet. Up to four compatible voltage-free safety sensors can be connected locally to the connection box, with a single M12-12 connection carrying the required circuits back towards the safety controller.
Unlike connection boxes intended for series-connected safety signals, the OCB-4A keeps the safety signals individually connected. This enables connected sensors to be assigned different safety functionality and makes the connection box suitable for machinery incorporating several independently monitored safeguarding devices.
Typical Applications
- Machine guard safety switch connections.
- Emergency stop and safety device installations.
- Industrial machinery safeguarding systems.
- Robot cells and automated production equipment.
- Multiple voltage-free safety sensor installations.
- Machine safety control cabinet wiring simplification.
Technical Specifications
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| Device Type | Cable / Connector | |
|---|---|---|
| Product group | Safety accessories | |
| Order code | 2TLA020055R3300 | |
| Product type | Safety sensor connection box | |
| Connection method | Individual safety signal connection | |
| Communication type | Voltage-free | |
| Maximum number of safety sensors | 4 | |
| Sensor connectors | 4 × M12-5 female | |
| Control cabinet connector | 1 × M12-12 male | |
| Rated operating voltage | 24 V DC | |
| Rated control supply voltage | 24 V DC | |
| Protection rating | IP67 | |
| Pollution degree | 2 | |
| Ambient temperature | -25 to +80 °C | |
| Colour | Black | |
| Status indication | No | |
| Dimensions (H × W × D) | 118 × 54 × 28 mm | |
| Weight | approximately 0.16 kg |
Frequently Asked Questions
What is the ABB 2TLA020055R3300 used for?
The ABB 2TLA020055R3300 OCB-4A is a connection box used to connect up to four compatible voltage-free safety sensors individually to a machine safety control system.
How many safety sensors can the ABB OCB-4A connect?
The OCB-4A can connect up to four safety sensors, using four M12 5-pin female sensor connections.
Are the safety signals connected individually on the OCB-4A?
Yes. The OCB-4A connects the safety signals individually, allowing connected sensors to have different safety functionality within the machine safety system.
What connectors are fitted to the ABB OCB-4A?
The OCB-4A has four M12-5 female connectors for safety sensors and one M12-12 male connector for connection towards the safety controller in the control cabinet.
What is the protection rating of the ABB 2TLA020055R3300?
The ABB OCB-4A has an IP67 protection rating, making it suitable for industrial machinery and automation installations.
Trusted Machine Safety Connectivity from ABB
ABB OCB safety sensor connection boxes simplify industrial machine wiring by providing centralised connections for multiple safety devices, helping machine builders create organised and robust connections between field-mounted safety equipment and the control cabinet.
