2TLA020055R3200 ABB OCB-3A Connection Box

Why Choose the ABB 2TLA020055R3200 OCB-3A Connection Box?

The ABB 2TLA020055R3200 is an OCB-3A sensor connection box designed to simplify the connection of multiple OSSD safety sensors in industrial machine-safety systems. It supports the individual connection of up to four Eden OSSD sensors with M12 5-pole connectors, as well as other compatible OSSD safety sensors.

Unlike a serial connection box, the OCB-3A keeps the safety signals from each connected sensor individually wired. This allows the connected sensors to have different safety functions and enables their individual signals to be evaluated by the associated safety controller, providing greater flexibility when designing machine safeguarding systems.

The OCB-3A provides four M12 5-pole female sensor connections and a single M12 12-pole male connector for connection to the safety controller in the control cabinet. With a 24 V DC supply and IP67 protection, it provides a compact and robust method of reducing field cabling while retaining individual OSSD safety channels.

Key Advantages

• Connects up to four OSSD safety sensors through one compact connection box.
• Provides individual safety-signal connections rather than placing sensors in a serial safety chain.
• Allows connected sensors to perform different safety functions.
• Designed for ABB Eden OSSD sensors with M12 5-pole connections and other compatible safety sensors.
• Reduces cabling between machine-mounted sensors and the control cabinet.
• Four M12 5-pole female sensor interfaces simplify field connections.
• Single M12 12-pole male connection routes the signals towards the safety controller.
• IP67 protection supports installation in demanding industrial environments.

Key Features

• ABB OCB-3A connection box.
• ABB order code 2TLA020055R3200.
• Designed for individual connection of OSSD safety sensors.
• Supports up to 4 safety sensors.
• Compatible with Eden OSSD M12-5 sensors and other sensors with compatible connections.
• Sensor interfaces: 4 × M12 5-pole female.
• Control-cabinet interface: 1 × M12 12-pole male.
• Individual safety signals allow different safety functionality for connected sensors.
• 24 V DC supply voltage.
• IP67 degree of protection.
• Compact connection box for decentralised machine-safety wiring.

Individual OSSD Connections with Reduced Machine Cabling

Machine-safety installations containing several OSSD sensors can require substantial wiring when every device is cabled separately back to the control cabinet. The ABB OCB-3A provides a decentralised connection point for up to four compatible sensors, allowing only one multi-core cable to run between the connection box and the safety controller while retaining the individual safety signals.

This individual connection architecture differentiates the OCB-3A from ABB OCB variants intended for serial safety connections. Each connected OSSD sensor can be evaluated individually and can therefore perform a different safety function within the machine design, making the OCB-3A particularly useful for installations requiring both simplified cabling and flexible safety control.

Typical Applications

• Individual connection of ABB Eden OSSD safety sensors.
• Machine guarding and interlocking systems.
• Automated production and assembly cells.
• Robot and automation safeguarding installations.
• Packaging and processing machinery.
• Material-handling and conveyor systems.
• Machines with several independently monitored safety guards.
• Safety systems requiring reduced field-to-cabinet cabling.