Product Overview

The Schneider Electric MVS20H Circuit Breaker belongs to the EasyPact MVS air circuit breaker family, designed for low-voltage power distribution and industrial electrical protection. With a rated current of 2000 A, the MVS20H is intended for applications that require high-capacity circuit switching, overload protection, and short-circuit fault interruption.

Air circuit breakers are important components in industrial power distribution systems. They protect electrical installations by detecting abnormal current conditions and interrupting the circuit when configured protection thresholds are exceeded. They can also provide controlled switching and isolation functions for maintenance and power distribution operations.

The MVS20H is part of the H breaking-capacity category. Its published breaking capacity is 65 kA at 220–440 V AC and 50 kA at 690 V AC. These characteristics make it suitable for appropriately engineered distribution systems where high fault-current interruption capability is required.

The EasyPact MVS platform is available in different configurations, including fixed and withdrawable mounting arrangements, different pole counts, and various trip-unit and operating options. Consequently, the MVS20H designation identifies the product family and electrical rating, while the complete catalog number determines the exact configuration.

The dimensions and weight supplied for this listing are 439 × 441 × 395 mm and 70 kg. These values correspond to a three-pole withdrawable MVS20H configuration. Before purchasing or replacing a breaker, users should verify the complete model number, pole configuration, trip unit, operating mechanism, and chassis arrangement.

Technical Specifications

Note: MVS20H is a family designation rather than a complete orderable catalog number. Confirm the exact catalog number and configuration before procurement.

Function and Working Principle

The MVS20H circuit breaker provides switching and protective functions in industrial low-voltage distribution systems. Its main purpose is to carry normal operating current while interrupting the circuit when abnormal electrical conditions occur.

1. Overload Protection

An overload occurs when an electrical circuit carries more current than its intended operating level for an extended period. Excessive current can cause conductors, busbars, and connected equipment to overheat.

The breaker uses its configured trip unit to monitor current and determine whether an overload condition requires interruption. Long-time protection settings, where provided by the installed trip unit, allow protection characteristics to be coordinated with the electrical installation.

Correct adjustment is important. Settings that are too high may reduce protection effectiveness, while settings that are too low may cause unnecessary interruptions during normal operation.

2. Short-Circuit Protection

A short circuit can produce a very high fault current within a short period. If the fault is not interrupted, it may cause severe thermal and electromechanical stress on electrical equipment.

The MVS20H belongs to the H breaking-capacity category. Its published Icu rating is 65 kA at 220–440 V AC and 50 kA at 690 V AC.

The actual suitability of a breaker depends on the prospective short-circuit current at the installation point, the system voltage, and the protection coordination design. The breaker must not be selected solely by its rated current.

3. Ground-Fault Protection

Depending on the installed trip unit and configuration, an EasyPact MVS breaker may support ground-fault protection.

This function helps detect current conditions associated with an unintended path to earth. When the measured condition exceeds the configured threshold and delay, the trip unit can initiate circuit interruption.

The availability and adjustment range of ground-fault protection must be confirmed from the complete catalog number and trip-unit documentation.

4. Switching and Isolation

The MVS20H can be used for switching and isolation in distribution systems when the selected configuration and installation comply with applicable requirements.

A withdrawable arrangement can provide connected, test, and disconnected positions, depending on the chassis and breaker design. This can simplify maintenance procedures by allowing the breaker to be moved between defined operating positions.

Isolation procedures must always follow the equipment manufacturer’s instructions and applicable electrical safety regulations.

5. Fault Interruption

When the trip unit detects a condition requiring disconnection, the breaker mechanism opens its contacts. The arc generated during contact separation is managed by the breaker’s arc-interruption system.

The breaker is designed to interrupt current within its specified electrical ratings. Its rated breaking capacity must be appropriate for the fault level of the installation.

Role in Industrial Power Distribution Systems

The MVS20H can serve as a major protective switching device in industrial low-voltage distribution networks. It may be installed in main distribution boards, switchboards, or other engineered power distribution assemblies.

Main Incoming Protection

In a suitable distribution architecture, a 2000 A air circuit breaker can be used as an incoming protective device. It provides switching and protection between the incoming supply and downstream distribution equipment.

The actual installation must account for transformer capacity, available fault current, busbar ratings, selectivity, and the protection requirements of the complete system.

Busbar Protection and Distribution

Industrial switchboards distribute electrical power through busbar systems to downstream feeders. A correctly selected breaker helps protect these distribution paths against overload and short-circuit conditions.

The breaker rating and trip settings must be coordinated with the busbar’s current-carrying capacity and the protective devices installed downstream.

Generator and Transformer Applications

Air circuit breakers may be used in generator and transformer distribution arrangements when their electrical ratings and protection characteristics are appropriate.

For these applications, engineers should evaluate fault-current contribution, generator operating characteristics, transformer impedance, and required protection coordination. A 2000 A rating alone does not establish suitability.

Industrial Maintenance

The withdrawable version of the MVS20H can support maintenance strategies that require the breaker to be moved between operating positions. This arrangement can help maintenance personnel perform inspection and replacement procedures according to established safety practices.

The exact maintenance procedure depends on the installed chassis, interlocks, and manufacturer instructions.

Industrial Applications

The Schneider Electric MVS20H is designed for high-capacity low-voltage distribution applications.

1. Industrial Manufacturing Plants

Manufacturing facilities often contain large electrical distribution systems supplying production machinery, motor control centers, lighting, HVAC equipment, and auxiliary services.

A 2000 A air circuit breaker may be used as part of a main or sectional distribution arrangement, depending on the facility’s electrical design.

2. Commercial and Infrastructure Buildings

Large commercial buildings and infrastructure facilities require reliable distribution protection for major electrical loads. The MVS20H may be considered for suitable switchboard applications where its current rating and breaking capacity match the installation.

Examples include large facilities, transport infrastructure, and centralized building power distribution systems.

3. Data Centers

Data centers require carefully coordinated electrical distribution to support servers, cooling equipment, UPS systems, and auxiliary infrastructure.

A high-capacity air circuit breaker may be used in an appropriate main distribution or feeder position. Selection must account for available fault current, system redundancy, selectivity, and the electrical characteristics of the UPS and downstream equipment.

4. Power Distribution Rooms

Industrial power distribution rooms use circuit breakers to control and protect incoming and outgoing electrical circuits.

The MVS20H can form part of a switchboard arrangement where a 2000 A rated breaker and the appropriate H-category breaking capacity are required.

5. Water Treatment and Process Facilities

Water treatment plants and process facilities may have large electrical loads distributed among pumps, motors, blowers, and auxiliary systems.

A suitable air circuit breaker can provide protective switching at an appropriate distribution level. The selected protection settings must coordinate with the downstream motor protection and feeder devices.

Installation and System Integration

The MVS20H is a high-current electrical protection device. Installation must be performed by qualified personnel using the manufacturer’s documentation and applicable electrical standards.

1. Verify the Complete Catalog Number

Before installation, identify the complete breaker catalog number. The MVS20H designation alone does not establish whether the device is three-pole or four-pole, fixed or withdrawable, manually or electrically operated, or equipped with a particular trip unit.

Confirm the exact configuration against the existing switchboard drawings and equipment nameplate.

2. Check System Voltage and Current

Verify that the electrical system is compatible with the breaker’s rated operational voltage and rated current.

The MVS20H family has a rated current of 2000 A and an operational voltage rating up to 690 V AC. The actual configuration must be checked against the manufacturer’s data.

3. Evaluate Short-Circuit Conditions

Determine the prospective short-circuit current at the installation point. Compare this value with the breaker’s rated breaking capacity at the actual operating voltage.

The published H-category ratings include 65 kA at 220–440 V AC and 50 kA at 690 V AC. Protection coordination with upstream and downstream devices must also be evaluated.

4. Confirm Panel and Chassis Dimensions

The supplied dimensions are 439 × 441 × 395 mm, with a listed weight of 70 kg.

These values correspond to a three-pole withdrawable configuration. Before installing the breaker, check the switchboard’s mounting space, chassis compatibility, connection arrangement, and required operating clearances.

Do not assume that all MVS20H fixed and withdrawable variants share the same dimensions.

5. Configure the Trip Unit

The trip unit determines the available protection functions and adjustment ranges. Depending on the complete model, protection may include long-time, short-time, instantaneous, and ground-fault functions.

Settings must be calculated and coordinated with the electrical system design. They should not be selected arbitrarily or copied from another installation without verification.

6. Verify Electrical Connections

Inspect the main terminals, busbar connections, cable connections, and grounding arrangements. Connection torque values and conductor requirements must follow the manufacturer’s instructions.

Incorrect connections can lead to overheating, contact damage, or equipment failure.

7. Perform Commissioning Tests

Before energizing the equipment, qualified personnel should inspect the installation and perform the required mechanical and electrical checks.

Testing may include:

• Mechanical operating checks.
• Trip-unit configuration verification.
• Auxiliary contact checks.
• Opening and closing mechanism checks.
• Interlock verification.
• Insulation and connection inspections.
• Protection-system coordination checks.

The exact test procedure should follow the manufacturer’s commissioning instructions and the site’s electrical safety requirements.

Compatible System Components

The MVS20H is normally installed as part of a complete low-voltage distribution assembly.

The components listed above are potential parts of an engineered switchboard. They are not necessarily included with every MVS20H breaker.

Alternative Models and Replacement Considerations

When replacing an MVS20H, engineers should evaluate the complete electrical and mechanical configuration rather than selecting another breaker based only on the 2000 A rating.

Before approving a replacement, verify:

• Rated current and rated operational voltage.
• Short-circuit breaking capacity at the system voltage.
• Number of poles.
• Fixed or withdrawable mounting arrangement.
• Chassis and connection compatibility.
• Trip-unit model and protection functions.
• Manual or electrical operating mechanism.
• Auxiliary contacts and accessories.
• Overall dimensions and installation clearances.
• Busbar connection arrangement.
• Protection coordination and commissioning requirements.

A breaker with the same rated current may still be unsuitable if its breaking capacity, trip unit, pole configuration, or mounting arrangement differs.

Key Advantages

High Current Rating

The MVS20H is designed for applications requiring a 2000 A rated-current circuit breaker, making it suitable for appropriately engineered high-capacity distribution systems.

High Breaking Capacity

The H-category configuration provides a published Icu rating of 65 kA at 220–440 V AC and 50 kA at 690 V AC.

Industrial Protection Functions

Depending on the installed trip unit, the breaker can provide protection against overloads and short-circuit conditions, with additional functions available in selected configurations.

Fixed and Withdrawable Configurations

The EasyPact MVS family offers different mounting arrangements. Withdrawable configurations can support maintenance strategies requiring defined connected and disconnected positions.

Flexible Installation Options

Different pole counts, trip units, connection arrangements, and operating mechanisms are available across the product family. The exact options depend on the complete catalog number.

Established Low-Voltage Distribution Platform

The EasyPact MVS family is designed for industrial and commercial distribution applications where coordinated switching and circuit protection are important.

Technical FAQs

1. What is the Schneider Electric MVS20H?

The MVS20H is an EasyPact MVS air circuit breaker designation for a 2000 A H-category breaker used in low-voltage power distribution systems.

2. What is the rated current of the MVS20H?

The rated current is 2000 A at the manufacturer’s specified reference conditions.

3. What is the breaking capacity of the MVS20H?

The published Icu rating is 65 kA at 220–440 V AC and 50 kA at 690 V AC. Always verify the applicable rating at the actual system voltage.

4. What voltage can the MVS20H support?

The product family has a rated operational voltage up to 690 V AC at 50/60 Hz. The exact breaker configuration and installation requirements must be checked before use.

5. Is the MVS20H a fixed or withdrawable circuit breaker?

The EasyPact MVS20H family includes different mounting configurations. The dimensions and weight provided for this listing correspond to a three-pole withdrawable version. Confirm the complete catalog number to identify the exact arrangement.

6. What is the weight of the MVS20H?

The supplied listing weight is 70 kg. This agrees with the published net weight for the referenced three-pole withdrawable configuration.

7. What protection functions are available?

Protection functions depend on the installed trip unit. Depending on the configuration, they may include long-time, short-time, instantaneous, and ground-fault protection.

8. Can the MVS20H be used in a main distribution board?

It may be used in a main distribution board when its rated current, breaking capacity, mounting arrangement, and protection characteristics meet the electrical design requirements.

9. Can an MVS20H replace another 2000 A circuit breaker?

Not automatically. The replacement must match the required voltage, breaking capacity, pole count, trip-unit functions, mounting arrangement, chassis, and accessories.

10. What should be checked before purchasing an MVS20H?

Confirm the complete catalog number, rated current, breaking capacity, pole count, mounting arrangement, trip-unit type, operating mechanism, physical condition, and included accessories. For used equipment, request clear photographs and available test records.

Procurement and Maintenance Recommendations

When purchasing the Schneider Electric MVS20H, the complete catalog number should be treated as the primary identification reference. The MVS20H designation alone does not provide enough information to establish the exact mechanical and electrical configuration.

For replacement projects, compare the existing breaker nameplate with the proposed unit. Check the pole count, rated current, voltage, breaking capacity, trip unit, mounting method, chassis, operating mechanism, and auxiliary accessories.

For used or surplus equipment, inspect the main contacts, arc chambers, operating mechanism, trip unit, terminals, and insulation components. Request information about previous service conditions and available electrical or mechanical test results.

During maintenance, follow the manufacturer’s inspection and testing procedures. Check mechanical operation, connection integrity, auxiliary circuits, interlocks, and trip-unit settings. Maintenance and testing should be carried out by qualified personnel under approved electrical safety procedures.

For withdrawable installations, verify the condition and compatibility of the chassis and racking mechanism. A breaker that fits physically may still have incompatible electrical connections or interlocking arrangements.

Conclusion

The Schneider Electric MVS20H EasyPact MVS Circuit Breaker is a 2000 A low-voltage air circuit breaker designed for industrial and commercial power distribution. Its H-category breaking capacity is rated at 65 kA at 220–440 V AC and 50 kA at 690 V AC, supporting applications that require high-capacity circuit protection.

The supplied dimensions of 439 × 441 × 395 mm and weight of 70 kg correspond to a three-pole withdrawable configuration. Since the MVS20H designation covers different product configurations, the complete catalog number should always be checked before ordering, installation, or replacement.

Correct selection, protection coordination, commissioning, and maintenance are essential to ensure reliable operation in industrial power distribution systems.