Product Overview

The Schneider BMXXSP1200 Shielded Connection Kit is a dedicated connection accessory designed for industrial automation installations where effective cable shielding and reliable electrical connection practices are important. Used within compatible Schneider Electric automation architectures, the kit supports the practical implementation of shielded wiring by providing a structured connection arrangement between cable shielding and the control-system installation.

In industrial control cabinets, signal and communication cables can be exposed to electromagnetic interference generated by variable speed drives, contactors, motors, switching power supplies, relays, and other electrical equipment. Proper shielding and grounding techniques help reduce the influence of unwanted electrical noise on sensitive control and measurement signals.

The BMXXSP1200 is therefore an important installation accessory when designing a clean and reliable automation cabinet. Rather than functioning as a PLC processor, I/O module, or communication controller, it serves a physical and electrical connection role within the broader automation system.

The listed dimensions of the Schneider BMXXSP1200 are 520 × 90 × 45 mm, with a listed weight of 0.4 kg. Its relatively long physical format is suitable for installations where multiple shielded cable connections need to be organized along an automation cabinet or equipment assembly.

Technical Specifications

The exact electrical configuration, terminal arrangement, supported cable types, and grounding method should be confirmed against the applicable system design and hardware documentation before installation.

What Is the Schneider BMXXSP1200?

The Schneider BMXXSP1200 is a shielded connection kit intended to support organized connection of cable shields within an industrial automation installation.

Shielded cables are frequently used in automation systems because control signals can be affected by electrical noise. The effectiveness of a cable shield depends not only on the cable itself but also on how the shield is connected and grounded.

A shield that is poorly connected, excessively long, or improperly routed may provide limited protection against interference. A dedicated shielded connection accessory helps create a more controlled installation arrangement.

The BMXXSP1200 can therefore be considered part of the physical infrastructure supporting signal integrity in a modular automation cabinet.

A simplified arrangement can be represented as:

Field Device → Shielded Cable → Shield Connection → Automation Equipment → Control System

The actual installation arrangement depends on the Schneider Electric system, cabinet design, cable construction, and grounding strategy.

Function of a Shielded Connection Kit

The main purpose of a shielded connection kit is to provide a practical method for handling the shielding layer of cables used in industrial automation.

A properly designed shield connection can help:

• Reduce electromagnetic interference
• Improve signal integrity
• Provide organized cable shielding
• Support consistent grounding practices
• Reduce unwanted electrical coupling
• Improve reliability of sensitive control signals
• Simplify cabinet wiring
• Maintain a cleaner installation layout

The BMXXSP1200 does not replace good EMC engineering. Cable routing, cabinet grounding, equipment bonding, and separation between power and signal wiring remain important.

Importance of Shielding in Industrial Automation

Industrial automation environments contain many potential sources of electromagnetic interference.

Typical sources include:

• Variable frequency drives
• Servo drives
• AC motors
• Contactors
• Switching power supplies
• High-current conductors
• Solenoid valves
• Relay circuits
• Welding equipment
• Industrial communication equipment

When power and signal cables are installed close together, electrical noise can couple into sensitive signal circuits.

This can potentially result in:

• Unstable analog measurements
• Communication errors
• Intermittent I/O behavior
• Incorrect sensor readings
• Unexpected controller diagnostics
• Increased communication retransmissions
• Intermittent equipment faults

A correctly installed shielded connection system helps reduce these risks by providing a controlled path for the cable shielding system.

Role in Schneider Electric Automation Systems

The BMXXSP1200 can form part of the installation infrastructure surrounding a Schneider Electric control system.

In a typical modular automation cabinet, different components perform different functions. The PLC or controller executes the control program, I/O modules exchange signals with field devices, communication modules handle network traffic, and accessories such as shielded connection kits support physical wiring and EMC practices.

The shield connection therefore contributes indirectly to overall system reliability.

For example:

PLC / Controller → I/O Module → Field Wiring → Shielded Cable → Shield Connection → Field Device

A properly organized connection arrangement can make the installation easier to inspect, maintain, and troubleshoot.

Industrial Applications

Factory Automation

The BMXXSP1200 can be used in factory automation cabinets where large numbers of sensors, actuators, and control devices are connected to PLC-based systems.

Shielded wiring is particularly useful when signal cables are installed near motors or power equipment.

Process Automation

Process plants often contain long cable runs between control cabinets and field instruments. Shielding can help maintain signal quality when analog and instrumentation signals travel through electrically noisy environments.

Motor Control Systems

Motor control cabinets can contain substantial electromagnetic noise due to switching equipment. Proper separation and shielding of control wiring can help reduce interference.

Packaging Machinery

Packaging equipment frequently combines PLCs, motors, drives, sensors, and high-speed control devices within a relatively compact machine. Shielded cable installation can help improve the reliability of sensitive signals.

Material Handling

Conveyor systems and material-handling equipment may require extensive sensor and actuator wiring. Organized shield connections can help maintain a cleaner cabinet installation.

Water and Utility Systems

Pump stations, treatment systems, and utility installations often use long signal cables and variable speed drives. Proper EMC installation practices are particularly relevant in these environments.

Physical Characteristics

The Schneider BMXXSP1200 has listed dimensions of:

520 × 90 × 45 mm

Its listed weight is:

0.4 kg

The relatively long 520 mm dimension should be considered during cabinet layout and mounting planning. Engineers should ensure that sufficient physical space is available for the connection kit as well as cable entry, routing, service access, and adjacent equipment.

The physical dimensions should also be considered when planning replacement parts and spare inventory.

Installation Guidelines

Proper installation is essential for obtaining the intended benefits of a shielded connection system.

1. Verify the Model

Before installation, confirm that the component is the correct BMXXSP1200 model for the intended Schneider Electric automation system.

Check:

• Complete model number
• Physical configuration
• Connection arrangement
• Cabinet location
• Associated automation hardware
• Cable requirements

2. Plan the Cabinet Layout

The 520 × 90 × 45 mm physical dimensions should be considered before mounting.

Allow adequate room for:

• Cable entry
• Shield termination
• Cable bending
• Adjacent components
• Maintenance access
• Grounding connections

3. Route Signal and Power Cables Correctly

Signal cables should generally be routed separately from high-power conductors whenever practical.

Avoid unnecessarily long parallel runs between:

• Motor cables
• Drive output cables
• High-current power cables
• Sensitive analog cables
• Communication cables

4. Establish a Proper Shield Connection

The cable shield should be connected according to the electrical design of the installation.

The exact shield termination method should be determined from the applicable Schneider system requirements and the cable/application design.

5. Verify Grounding

The grounding arrangement should provide a low-impedance path appropriate for the cabinet and system architecture.

Grounding connections should be mechanically secure and free from contamination that could compromise electrical continuity.

EMC and Shielding Considerations

Electromagnetic compatibility is a system-level issue. A shielded connection kit alone cannot compensate for poor cabinet design.

Important EMC practices include:

Short Shield Connections

Where the application requires high-frequency interference control, unnecessarily long shield connections can reduce shielding effectiveness.

Proper Cable Routing

Signal cables should be separated from major noise sources whenever possible.

Cabinet Bonding

Metallic cabinet sections should have appropriate electrical bonding where required by the system design.

Grounding Consistency

Grounding and shield termination should follow a deliberate engineering strategy rather than being connected arbitrarily.

Drive and Motor Cable Separation

Variable frequency drive motor cables can produce significant electromagnetic disturbance. These cables should be routed separately from sensitive control and communication wiring.

System Integration

The BMXXSP1200 may be incorporated into a broader automation cabinet containing:

• Schneider Electric PLCs
• Modicon M340 components
• Modicon M580 components
• I/O modules
• Communication modules
• Analog input modules
• Analog output modules
• Digital I/O modules
• Remote I/O equipment
• Industrial Ethernet equipment
• Variable speed drives
• Servo systems
• Sensors
• Actuators
• Shielded instrumentation cables

The exact compatible configuration should be verified according to the host system and installation requirements.

The BMXXSP1200 should not be treated as an independent control module. Its value comes from its role within the physical wiring and EMC infrastructure of the automation system.

Cabinet Design Considerations

When installing a shielded connection kit, cabinet designers should consider the complete wiring architecture.

The 520 mm length of the BMXXSP1200 means that the component may occupy a substantial section of the available cabinet space.

Before installation, consider:

• Mounting location
• Cable entry direction
• Cable bending radius
• Shield termination position
• Adjacent PLC equipment
• Power distribution
• Drive location
• Grounding structure
• Maintenance access

A well-planned layout can reduce cable congestion and simplify future troubleshooting.

Troubleshooting

Although the BMXXSP1200 is a passive installation accessory rather than an active electronic controller, problems associated with shield connections can still affect system performance.

Communication Errors

If an industrial network experiences intermittent communication problems, inspect:

• Cable shielding
• Shield termination
• Cable routing
• Grounding
• Connector condition
• Proximity to high-power conductors
• Network cable condition

The shielded connection should be checked as part of the complete communication installation.

Unstable Analog Signals

If analog measurements fluctuate unexpectedly, investigate:

• Sensor wiring
• Shield termination
• Grounding
• Cable routing
• Electrical interference
• Sensor condition
• Analog module configuration

The connection kit itself should not automatically be considered the source of the problem.

Intermittent Electrical Noise

Unexpected noise may be caused by poor shield continuity, damaged cable shielding, incorrect routing, or grounding problems.

Inspect the complete signal path rather than replacing components immediately.

Loose Connections

Mechanical looseness can compromise shield continuity and produce intermittent behavior. Connection points should be inspected during maintenance activities.

Preventive Maintenance

Regular inspection helps maintain the reliability of shielded wiring installations.

Recommended maintenance activities include:

• Inspect shield connections
• Check mechanical fastening
• Examine cables for physical damage
• Inspect grounding connections
• Check for corrosion
• Verify cable routing
• Look for excessive cable movement
• Inspect areas near high-power equipment
• Review recurring communication or signal faults

Maintenance personnel should also inspect the surrounding cabinet environment for dust, moisture, vibration, and other conditions that may affect long-term reliability.

Replacement Considerations

When replacing a Schneider BMXXSP1200 Shielded Connection Kit, verify the complete model number before installation.

Important identification information includes:

• Model number: BMXXSP1200
• Product type: Shielded Connection Kit
• Dimensions: 520 × 90 × 45 mm
• Weight: 0.4 kg
• Existing mounting arrangement
• Associated Schneider automation equipment
• Cable and shield configuration

A visually similar accessory should not automatically be treated as an equivalent replacement.

Physical dimensions, mounting method, connection configuration, and system compatibility should all be checked.

Storage and Handling

The BMXXSP1200 should be handled carefully before installation.

Recommended practices include:

• Store in a clean and dry environment
• Protect the component from excessive moisture
• Avoid mechanical impact
• Keep connection surfaces clean
• Prevent deformation of mounting or connection components
• Retain original identification information

During transportation, the listed 0.4 kg product weight should be considered for handling and inventory planning.

Engineering Best Practices

For reliable use of the BMXXSP1200, several general engineering practices are recommended.

Use Appropriate Shielded Cables

The connection accessory should be used together with cable types appropriate for the signal and application.

Maintain Cable Separation

Keep sensitive wiring away from major electrical noise sources whenever possible.

Minimize Unnecessary Cable Loops

Organized routing reduces cabinet congestion and can improve maintainability.

Maintain Clear Identification

Cable labels and shield connection identification can make future maintenance considerably easier.

Document the Installation

The shield connection arrangement should be documented as part of the cabinet electrical documentation.

Inspect During Commissioning

After installation, verify signal stability and communication performance under normal operating conditions.

Key Advantages

The Schneider BMXXSP1200 offers several practical advantages for industrial automation installations:

• Dedicated shielded connection solution
• Supports organized cable-shield management
• Helps implement consistent EMC practices
• Suitable for industrial control cabinet applications
• Long 520 mm physical format for installation planning
• Compact 90 × 45 mm cross-sectional dimensions
• Listed weight of only 0.4 kg
• Supports cleaner cabinet wiring
• Facilitates maintenance and troubleshooting
• Can contribute to improved signal integrity when correctly installed

Technical FAQs

What is the Schneider BMXXSP1200?

The Schneider BMXXSP1200 is a Shielded Connection Kit designed to support shielded cable connection and installation practices in compatible industrial automation systems.

What are the dimensions of the BMXXSP1200?

The listed dimensions are 520 × 90 × 45 mm.

How much does the BMXXSP1200 weigh?

The listed weight is 0.4 kg.

What is the purpose of a shielded connection kit?

A shielded connection kit provides a structured method for connecting and managing cable shields, helping support electromagnetic compatibility and signal integrity in industrial installations.

Is the BMXXSP1200 an active electronic module?

No. It is a shielded connection accessory, rather than a PLC processor, I/O module, or active communication controller.

Why is cable shielding important in automation systems?

Shielding can help reduce the influence of electromagnetic interference on sensitive control, instrumentation, and communication signals when the complete cable and grounding system is correctly designed.

Can the BMXXSP1200 eliminate all electrical interference?

No. Shielding is only one part of EMC engineering. Cable routing, grounding, cabinet design, equipment separation, and correct installation practices are also important.

What should be checked before replacing the BMXXSP1200?

The complete model number, mounting arrangement, cable configuration, associated Schneider automation equipment, and physical dimensions should be verified before replacement.

Where can the BMXXSP1200 be used?

It can be incorporated into compatible industrial automation and control installations where shielded cable connections are required as part of the system wiring and EMC strategy.

Conclusion

The Schneider BMXXSP1200 Shielded Connection Kit is an installation-oriented accessory designed to support organized shield connection and cable management within industrial automation systems. By providing a structured approach to shielded wiring, it can contribute to better electromagnetic compatibility, cleaner cabinet construction, and more reliable signal transmission when used as part of a properly engineered installation.

With listed dimensions of 520 × 90 × 45 mm and a weight of 0.4 kg, the BMXXSP1200 should be considered during cabinet layout, cable-routing, maintenance, and replacement planning. Its long physical format makes available mounting space and cable access particularly important during installation.

For reliable operation, the BMXXSP1200 should be integrated with appropriate shielded cables, grounding practices, cable routing, and cabinet EMC design. Correct identification of the complete BMXXSP1200 model and verification of the intended system configuration are recommended before installation or replacement.