ABB 2TLA010040R0200 Sentry BSR11 Safety Relay

ABB 2TLA010040R0200 is a Sentry BSR11 safety relay designed for safety-related control applications in industrial machinery and electrical control systems. The device operates with a 24 V DC supply and provides four normally open failsafe relay outputs. Its primary function is to monitor suitable safety devices and control safety-related circuits according to the requirements of the connected machine safety architecture.

The BSR11 belongs to the ABB Sentry safety relay family. ABB identifies the product as a safety relay and expansion relay with four normally open relay outputs, a +24 V DC supply and screw terminal connections. The device can monitor safety devices such as emergency stops directly in the voltage supply circuit of the relay. It can also be used as an expansion relay connected to a safety relay or safety programmable logic controller when additional safe outputs are required. :contentReference[oaicite:1]{index=1}

Product Overview

The ABB 2TLA010040R0200 provides a dedicated interface between safety input conditions and safety-related output circuits. Its four normally open outputs can be used to control multiple downstream safety circuits where the safety architecture requires relay-based switching.

The BSR11 is particularly suited to applications in which an emergency stop or another compatible safety device must be supervised and the resulting safety condition must be transferred to one or more controlled circuits. The relay architecture allows the safety function to be implemented independently of ordinary machine control signals.

The product is identified by the engineering designation BSR11 and ABB ordering code 2TLA010040R0200. ABB’s current product catalog places this model within the Sentry safety relay range and classifies it as a device for monitoring safety-related circuits. :contentReference[oaicite:2]{index=2}

Technical Specifications

• Manufacturer: ABB
• Product family: Sentry
• Product type: Safety relay
• Engineering designation: BSR11
• Ordering code: 2TLA010040R0200
• Supply voltage: 24 V DC
• Safety outputs: 4 normally open failsafe relay outputs
• Connection type: Screw terminals
• Mounting method: DIN rail
• Protection degree: IP20
• Product width: 22.5 mm
• Product height: 120 mm
• Product depth: 120 mm
• Approximate product weight: 0.19 kg
• Application: Safety circuit monitoring and safe output expansion

ABB specifies a 24 V DC supply and four failsafe normally open relay outputs for the BSR11. The product dimensions are approximately 120 mm in height, 22.5 mm in width and 120 mm in depth, while the stated product weight is approximately 0.19 kg. The protection degree is IP20, which indicates that the relay is intended for installation within an appropriate electrical enclosure or control cabinet rather than direct exposure to the surrounding environment. :contentReference[oaicite:3]{index=3}

Safety Relay Function

A safety relay is designed to process signals from safety-related devices and establish a defined output condition when the required safety conditions are satisfied. In a machine safety system, this can provide an interface between an emergency stop circuit and the power control elements responsible for stopping hazardous machine movement.

With ABB 2TLA010040R0200, the BSR11 monitors compatible safety circuits and controls its relay outputs according to the configured safety function. When the safety circuit is interrupted, the output state changes so that connected safety-related circuits can be brought into the required safe condition.

This operating principle separates safety functions from ordinary operational control. A machine controller may manage production sequences, while the safety relay provides an independent path for safety-related switching.

Emergency Stop Monitoring

One of the applications explicitly identified by ABB for the BSR11 is monitoring safety devices such as emergency stops directly in the voltage supply circuit of the relay. An emergency stop device can therefore form part of a safety circuit in which interruption of the safety condition causes the safety relay outputs to change state. :contentReference[oaicite:4]{index=4}

Emergency stop monitoring is commonly used on industrial machinery where operators need a defined method of stopping hazardous functions. The safety relay does not replace the emergency stop device itself; instead, it provides the electrical evaluation and switching interface between the safety device and the machine’s safety-related control circuits.

Four Normally Open Safety Outputs

The four normally open relay outputs are an important characteristic of ABB 2TLA010040R0200. Multiple output contacts allow one safety condition to control several safety-related circuits or provide the required switching interfaces for connected equipment.

For example, the outputs can be incorporated into machine control architectures where several circuits must respond when a safety device is activated. The exact wiring arrangement depends on the machine risk assessment, safety circuit design and applicable safety standards.

The four output contacts also make the BSR11 suitable for safe output expansion. ABB specifically identifies the product as an expansion relay that can be used with a safety relay or safety programmable logic controller to increase the number of safe outputs. :contentReference[oaicite:5]{index=5}

Expansion Relay Application

In larger machine safety systems, the number of available safe outputs from a primary safety controller may not be sufficient for every controlled circuit. The BSR11 can be used as an expansion relay to provide additional relay contacts while remaining part of the overall safety architecture.

This function can simplify system design by allowing one safety decision to be distributed to several downstream circuits. The expansion configuration must be engineered according to the safety controller’s specifications and the required safety performance level.

The ABB Sentry range includes different relay configurations for different safety input and output requirements. The BSR11 is specifically distinguished by its four normally open outputs and its defined safety input configuration. :contentReference[oaicite:6]{index=6}

DIN Rail Installation

ABB 2TLA010040R0200 is designed for DIN rail mounting, making it suitable for installation inside industrial electrical control cabinets. Its 22.5 mm width allows the relay to occupy a relatively narrow section of a control cabinet while still providing four relay output contacts.

The screw terminal connection method provides a conventional wiring interface for industrial control panels. During installation, conductors, terminal connections, protective measures and cabinet layout should be selected according to the applicable electrical requirements and the detailed ABB installation documentation.

The IP20 enclosure rating means that the relay should be installed in an environment where protection against direct contact and environmental conditions is provided by the surrounding control cabinet or enclosure.

Machine Safety Applications

ABB 2TLA010040R0200 can be incorporated into a range of industrial machine safety applications. Typical system-level applications include:

• Emergency stop monitoring
• Machine safety control circuits
• Safety-related relay interfaces
• Safe output expansion
• Industrial automation control cabinets
• Production machinery
• Machine access protection systems
• Safety circuits associated with industrial equipment

The BSR11 is intended for safety-related circuits rather than ordinary switching applications. Its application should therefore be determined by the safety design of the machine and the characteristics of the connected safety devices.

Safety Architecture

A safety relay forms one component of a complete machine safety system. Depending on the application, the system can include emergency stop devices, guard switches, enabling devices, safety controllers, contactors and other safety-related components.

ABB 2TLA010040R0200 provides the relay interface required to connect suitable safety inputs with four safety-related normally open outputs. The complete safety function depends on the correct selection and coordination of all components within the safety system.

ABB documentation identifies the BSR11 as suitable for safety applications and specifies performance capability up to Performance Level e. The final achieved safety level, however, depends on the complete system architecture, component selection, diagnostics, wiring and applicable risk assessment rather than the relay alone. :contentReference[oaicite:7]{index=7}

BSR11 Compared with Related Sentry Models

The Sentry family includes several safety relay configurations. ABB’s product catalog lists BSR10, BSR11 and BSR23 models with different safety input and output arrangements. The BSR11 is identified by ordering code 2TLA010040R0200, while the closely related BSR10 uses ordering code 2TLA010040R0000. :contentReference[oaicite:8]{index=8}

The BSR11 should therefore be identified by its complete ordering code when selecting equipment for a specific safety circuit. Similar-looking Sentry products may have different input configurations, output arrangements or functions.

Electrical System Integration

The BSR11 can be integrated into an industrial control cabinet alongside safety controllers, motor contactors, circuit protection equipment and standard automation components. Its relay outputs can provide the switching interface required by downstream safety circuits.

When used as an expansion relay, the BSR11 can increase the number of available safe relay outputs from a compatible safety controller or safety relay. This allows several controlled circuits to respond to the same safety condition while maintaining a structured machine safety architecture.

The 24 V DC supply also corresponds with a common control voltage used in industrial automation systems, allowing the relay to be integrated into suitable low-voltage control circuits.

Product Identification

Correct identification of ABB 2TLA010040R0200 is important because the Sentry family contains multiple models with different electrical functions. The complete ordering code should be checked against the device marking and system documentation before installation.

The key identification information is the ABB ordering code 2TLA010040R0200 and the engineering designation BSR11. ABB’s catalog associates this ordering code specifically with the Sentry BSR11 24 V DC safety relay. :contentReference[oaicite:9]{index=9}

Conclusion

ABB 2TLA010040R0200 is a Sentry BSR11 safety relay designed for safety-related industrial control applications. It operates from a 24 V DC supply and provides four normally open failsafe relay outputs through a compact DIN rail-mounted housing with screw terminals.

The device can monitor safety devices such as emergency stops and can also be used as an expansion relay for a safety relay or safety programmable logic controller. Its four safety outputs provide additional switching capacity for safety-related circuits, making the BSR11 suitable for structured machine safety architectures. :contentReference[oaicite:10]{index=10}

For engineering and system identification, ABB 2TLA010040R0200 should be referenced by its complete ordering code and BSR11 designation. The supply voltage, output configuration, input requirements, installation method and safety characteristics should be considered together with the complete machine safety design and applicable technical documentation.