Product Overview

The Siemens 6AG1961-2BA41-7AA0 SIPLUS PS PSE200U 10 A Selectivity Module is a four-channel electronic protection and load-distribution module designed for 24 V DC industrial power systems. It distributes a DC power supply to multiple independent load circuits and monitors each output channel to help protect connected equipment against overloads and short circuits.

Manufactured by Siemens, this SIPLUS version is based on the standard SITOP PSE200U product 6EP1961-2BA41. It includes conformal coating to provide additional protection for the electronic assembly in industrial environments exposed to certain environmental stresses.

The module accepts a 24 V DC supply and provides four independently protected 24 V DC outputs. Each output supports a rated current of up to 10 A, with an adjustable current response threshold from 3 A to 10 A. Individual channel status signals allow connected control systems to monitor the condition of the distributed power circuits.

In industrial automation systems, a reliable 24 V DC supply is essential for PLCs, sensors, actuators, communication equipment, and other control devices. If one branch experiences a short circuit or sustained overload, the resulting voltage disturbance can affect other connected equipment. The 6AG1961-2BA41-7AA0 helps reduce this risk by isolating a faulty output channel while maintaining power to unaffected branches.

Its four-channel architecture makes it suitable for control cabinets where multiple DC loads need separate protection and monitoring. The adjustable current thresholds also allow engineers to configure each channel according to the requirements of the connected load.

Technical Specifications

Note: The supplied dimensions correspond to the product packaging dimensions listed for this item. Confirm the manufacturer’s mechanical drawing for actual enclosure and mounting clearances.

Function and Working Principle

The Siemens 6AG1961-2BA41-7AA0 combines 24 V DC power distribution with electronic branch-circuit protection. Its primary function is to distribute electrical power to four separate load circuits while monitoring the current drawn by each channel.

1. Four-Channel Power Distribution

The module receives a 24 V DC input from an industrial power supply and distributes it to four independent output channels.

Each output can supply up to 10 A under the specified operating conditions. This arrangement allows engineers to organize different loads into separate power branches rather than connecting all equipment to a single unprotected DC circuit.

For example, a control cabinet may use separate outputs for PLC-related equipment, sensor groups, communication devices, and actuator circuits.

Separating these loads makes it easier to identify faults and perform maintenance without unnecessarily interrupting the entire 24 V DC distribution system.

2. Adjustable Current Threshold

Each channel has an adjustable current response threshold between 3 A and 10 A. Engineers can configure the threshold according to the connected load’s normal operating current and expected starting behavior.

This adjustment helps prevent a faulty or overloaded branch from drawing excessive current from the common power supply.

The correct threshold should be selected with consideration for the connected equipment, cable capacity, operating conditions, and temporary inrush current.

3. Electronic Overload Protection

When a connected load draws more current than its configured threshold for a sustained period, the module can disconnect the affected output.

The electronic protection system is designed to distinguish between temporary current peaks and persistent overload conditions. This is important because some industrial devices draw increased current briefly during startup.

By managing these conditions electronically, the module helps protect the distribution system while reducing unnecessary interruptions to healthy circuits.

4. Short-Circuit Detection

A short circuit in one output branch can cause a substantial increase in current demand. If the common power supply cannot maintain its output voltage, other connected devices may also be affected.

The 6AG1961-2BA41-7AA0 monitors individual branches and can disconnect a faulty channel according to its electronic protection characteristics.

This selective response helps maintain the availability of unaffected loads and supports more reliable operation of industrial control cabinets.

5. Individual Channel Status Signaling

Each output channel provides status information. The module also uses individual LED indicators to help maintenance personnel identify the operating condition of each branch.

The indicators distinguish normal power delivery, manually switched-off outputs, and outputs disconnected because of overcurrent.

These indications simplify troubleshooting and help technicians locate the affected circuit without inspecting every connected device individually.

6. Remote Reset and Output Control

The module supports remote reset functionality through a 24 V control input. This allows a connected control system to participate in the recovery process after an output has been disconnected by a fault.

The reset function should only be used after the underlying fault has been investigated and corrected. Repeatedly resetting an output without identifying the cause may expose the connected equipment and wiring to further electrical stress.

Role in Industrial Automation Systems

The 6AG1961-2BA41-7AA0 is generally installed in the 24 V DC distribution section of an industrial control cabinet. It works alongside power supplies, PLC systems, sensors, actuators, and other control devices.

PLC Power Distribution

PLCs depend on stable DC power for CPU operation, I/O processing, and communication. The selectivity module can help organize power distribution to suitable control-system branches.

By separating the PLC-related power circuit from other loads, engineers can reduce the risk that a fault in an external device will interrupt the entire control system.

The actual wiring arrangement should follow the current requirements and protection recommendations for the PLC and its accessories.

Sensor and Actuator Protection

Industrial sensors and actuators often operate on 24 V DC. These devices may be distributed across several machine sections or process stations.

Using separate protected channels can help isolate a fault in one group of devices while maintaining power to other branches.

For example, a short circuit in an actuator cable may cause the corresponding channel to disconnect without requiring the shutdown of every sensor and control device in the cabinet.

HMI and Communication Equipment

Human-machine interfaces, communication gateways, and network devices may also require 24 V DC power.

These components are often important for machine supervision and operational communication. Separating their power circuits from higher-current loads can improve the organization of the control cabinet.

The 6AG1961-2BA41-7AA0 provides a practical method of distributing and monitoring suitable DC loads through independent output channels.

Centralized Power Monitoring

The individual channel status signals can be connected to suitable PLC inputs or monitoring equipment.

This allows a control system to identify which branch has been disconnected and generate an alarm for operators or maintenance personnel.

The exact monitoring arrangement depends on the PLC input configuration and the electrical design of the control cabinet.

Industrial Applications

The Siemens SIPLUS 6AG1961-2BA41-7AA0 is intended for 24 V DC power distribution in industrial automation environments.

1. PLC Control Cabinets

Industrial control cabinets commonly contain PLC CPUs, I/O modules, communication equipment, and peripheral devices that require 24 V DC power.

The selectivity module can distribute power to several independent branches and provide individual protection for suitable loads.

This helps maintenance teams isolate electrical faults and maintain the operation of unaffected equipment.

2. Manufacturing Production Lines

Production lines may contain multiple sensor groups, actuators, indicator devices, and control interfaces.

Separating these loads into different DC branches can make the power distribution system easier to maintain.

If a fault occurs in one branch, electronic channel protection can help prevent the problem from affecting other connected branches.

3. Packaging Machinery

Packaging machines often use distributed 24 V DC components, including photoelectric sensors, proximity switches, solenoid valves, and control devices.

The module can support the organization of these circuits into separate protected channels.

This is useful when a machine contains several functional sections that need independent electrical monitoring.

4. Process Automation Systems

Process automation installations may include remote I/O stations, instrumentation devices, communication interfaces, and local control equipment.

A selective distribution module can help improve the organization of 24 V DC power circuits and provide channel-level fault information.

The current rating of each output must be checked against the actual connected load.

5. Industrial Communication Cabinets

Industrial Ethernet switches, gateways, and other communication devices may require a stable 24 V DC supply.

Using a dedicated protected branch for communication equipment can help reduce the possibility that faults in unrelated loads will interrupt network devices.

6. Equipment Operating in Harsh Environments

The SIPLUS version includes conformal coating on the electronic assembly and is specified for an extended temperature range of -25°C to +70°C.

These features make it suitable for selected installations exposed to environmental stresses beyond those of standard indoor control cabinets.

However, conformal coating does not make the module waterproof or suitable for unrestricted exposure to corrosive liquids, condensation, or direct contamination. The complete installation must still provide appropriate environmental protection.

Installation and System Integration

Correct installation is essential for reliable power distribution and effective electronic protection.

1. Verify the 24 V DC Supply

Before installation, confirm that the input supply is suitable for the module.

The rated input voltage is 24 V DC, with a specified input range of 22–30 V DC. The power supply must have sufficient current capacity for the total connected load.

The rated input current is 40 A. Engineers should also consider the expected startup current and the operating conditions of all connected devices.

2. DIN Rail Mounting

The module is designed for mounting on a standard EN 60715 DIN rail.

Install it in a suitable control cabinet with sufficient space for wiring, maintenance, and heat dissipation.

The supplied 85 × 75 × 89 mm dimensions refer to packaging dimensions rather than necessarily representing the actual installed enclosure dimensions. Use the manufacturer’s mechanical documentation when planning panel layouts.

3. Input and Output Wiring

Connect the 24 V DC input and the four output branches according to the terminal markings and wiring instructions.

Use conductors with appropriate cross-sectional areas for the expected current. Ensure that each branch is correctly identified and that the connected load does not exceed its configured current threshold.

Incorrect wiring or inadequate conductor sizing can affect protection performance and create electrical hazards.

4. Configure Current Thresholds

Set the current response threshold for each channel according to the connected load.

The adjustable range is 3–10 A. A suitable threshold should be higher than the normal operating current but remain appropriate for the cable, device, and circuit protection requirements.

Avoid selecting the maximum threshold automatically for every channel. Each output should be configured according to its actual load.

5. Configure Output Startup Behavior

The module supports different output connection strategies, including simultaneous and sequential startup arrangements.

Sequential or load-dependent startup can help reduce the combined inrush current when several devices are energized at the same time.

Select the startup method according to the connected equipment and the available power supply capacity.

6. Connect Status Signals

Each output channel provides status information that can be used by a PLC or monitoring system.

When integrating the module with a PLC, verify the signal characteristics, terminal assignments, and input compatibility.

A suitable alarm strategy can notify operators when an output is disconnected because of an overload or short circuit.

7. Test Protection and Recovery Functions

After installation, test the four output branches under normal operating conditions.

Verify the channel indicators, output voltage, current settings, status signals, and remote reset behavior.

Testing should be carried out according to the manufacturer’s instructions and applicable electrical safety procedures. Do not deliberately create uncontrolled short circuits as a troubleshooting method.

Compatible System Components

The 6AG1961-2BA41-7AA0 is designed for integration into 24 V DC power distribution systems.

These components are examples of equipment that may be used in the same control system. They are not necessarily included with the selectivity module.

Alternative Models and Replacement Considerations

The 6AG1961-2BA41-7AA0 belongs to the Siemens SIPLUS product family and is based on the standard 6EP1961-2BA41.

When selecting a replacement, engineers should compare the number of channels, output current, adjustable threshold, environmental specifications, and monitoring functions.

Before selecting a replacement, verify:

• Rated input voltage and permitted voltage range.
• Number of output channels.
• Maximum output current per channel.
• Adjustable current response range.
• Overload and short-circuit response characteristics.
• Channel status and signaling functions.
• Remote reset requirements.
• Environmental temperature range.
• Conformal coating and environmental protection.
• Mechanical dimensions and DIN rail compatibility.
• Terminal layout and wiring requirements.

The standard 6EP1961-2BA41 and SIPLUS 6AG1961-2BA41-7AA0 share the underlying 10 A PSE200U design, but their environmental specifications differ. A replacement decision should account for the operating environment rather than relying only on the electrical ratings.

Key Advantages

Four Independent Output Channels

The module distributes 24 V DC power to four separate load circuits, helping organize the electrical architecture of industrial control cabinets.

Adjustable Current Protection

Each output has an adjustable current threshold from 3 A to 10 A, allowing engineers to configure protection according to the connected load.

Electronic Overload and Short-Circuit Protection

The module can disconnect a faulty branch when an overload or short circuit is detected, helping protect the remaining distribution system.

Individual Channel Monitoring

Status indicators and signaling outputs help maintenance personnel identify the condition of each output.

Support for Remote Reset

The remote reset function allows a suitable control system to participate in recovery after a fault has been corrected.

Reduced Startup Current Peaks

Configurable output startup behavior supports simultaneous or sequential connection of the output branches, helping manage combined inrush current.

SIPLUS Conformal Coating

The conformal coating provides additional protection for the electronic assembly under specified environmental stress conditions.

Extended Operating Temperature

The specified -25°C to +70°C operating temperature range supports installations that require a wider temperature capability than standard versions.

Technical FAQs

1. What is the Siemens 6AG1961-2BA41-7AA0?

It is a Siemens SIPLUS PS PSE200U 10 A four-channel selectivity module designed for 24 V DC load distribution and electronic branch-circuit protection.

2. How many output channels does this module have?

It has four independent 24 V DC output channels. Each channel supports a rated output current of up to 10 A.

3. What is the input voltage?

The rated input voltage is 24 V DC, with a specified input range of 22–30 V DC.

4. Can the output current be adjusted?

Yes. The current response threshold can be adjusted independently for each channel within the 3–10 A range.

5. What happens when one output experiences a short circuit?

The module monitors individual output channels and can disconnect the affected branch according to its electronic protection characteristics. The other healthy branches can continue operating if the common power supply and system conditions remain within their permitted limits.

6. Does the module provide individual fault signals?

Yes. Each channel provides status information. The module also includes LED indicators to help identify normal operation, manual disconnection, and overcurrent-related shutdown.

7. Can the module be connected to a Siemens PLC?

Yes. Its status signaling and remote reset functions can be integrated into an appropriately designed control system. Verify the electrical signal characteristics and PLC input compatibility before wiring.

8. What is the difference between the SIPLUS and standard versions?

The 6AG1961-2BA41-7AA0 is based on the standard 6EP1961-2BA41 but includes conformal coating and an extended operating temperature range of -25°C to +70°C.

9. What is the mounting method?

The module is designed for mounting on an EN 60715 DIN rail. Confirm the mechanical installation dimensions and required clearances using the manufacturer’s documentation.

10. What should be checked before purchasing?

Verify the complete part number, product condition, channel configuration, output current rating, terminal condition, and included accessories. For replacement projects, also compare the environmental requirements and wiring arrangement of the original installation.

Procurement and Maintenance Recommendations

When purchasing the Siemens 6AG1961-2BA41-7AA0, verify the complete order number rather than relying only on the general description of a 10 A selectivity module.

The SIPLUS designation is important because it identifies the conformally coated version with an extended temperature range. If the equipment operates in an environment with temperature variations or environmental stresses, confirm that the replacement provides the required protection characteristics.

For used or surplus equipment, inspect the enclosure, terminal connections, mounting clips, and visible condition of the electronic assembly. Request clear product-label photographs and confirm the module’s functional condition where possible.

During maintenance, inspect the wiring and terminal connections and verify that each channel’s current threshold matches its connected load. Check the status indicators and confirm that the remote reset and monitoring functions operate correctly.

If an output repeatedly disconnects, investigate the connected device, cable condition, and actual load current before resetting the channel. Repeated trips may indicate a short circuit, overload, damaged cable, or incorrectly configured current threshold.

Keep a record of the channel assignments and current settings. This documentation can make future troubleshooting and replacement work more efficient.

Conclusion

The Siemens 6AG1961-2BA41-7AA0 SIPLUS PS PSE200U 10 A Selectivity Module is a four-channel electronic protection device designed for 24 V DC industrial power distribution. It provides four independently monitored outputs, each rated for up to 10 A, with adjustable current thresholds from 3 A to 10 A.

Its electronic overload and short-circuit protection, individual channel status signaling, remote reset capability, and conformal coating make it suitable for selected industrial control applications requiring organized and monitored DC power distribution.

For maintenance and replacement projects, engineers should verify the complete SIPLUS order number, electrical ratings, environmental requirements, terminal configuration, and mounting dimensions before installation.