Brand:Schneider PLC Item No.:MT40H1b Product Origin:France Product Dimensions:439 x 556 x 395 mm Product Weight:90 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
Schneider Electric’s MT40H1b circuit breaker is designed for low-voltage distribution systems that require dependable protection and stable electrical operation. As part of the Masterpact MT range, it can be configured for different switchboard and power distribution requirements through compatible trip units and accessories.
The breaker is intended for use in professional electrical installations, including industrial facilities, commercial buildings, and infrastructure projects. Its suitability for a particular system depends on the required electrical ratings, protection settings, installation arrangement, and coordination with upstream and downstream protective devices.
When sourcing an MT40H1b, buyers should confirm the complete model reference and product condition. Differences in trip units, connection arrangements, and installed accessories can affect whether a particular unit is suitable for an existing installation.
Technical Specifications
Parameter
Description
Brand
Schneider Electric
Model
MT40H1b
Product Name
Masterpact MT Circuit Breaker
Product Type
Air Circuit Breaker (ACB)
Product Family
Masterpact MT
Performance Category
H1b
Application
Low-voltage power distribution
Installation
Electrical switchboards and distribution systems
Protection
Dependent on installed trip unit
Dimensions (W × H × D)
439 × 556 × 395 mm
Weight
90 kg / 198.42 lb
Note: Confirm the exact electrical ratings, trip-unit type, pole configuration, and accessory references against the product nameplate and applicable technical documentation.
Recommended Related Models
The following Masterpact MT references may be relevant when comparing products within the same general breaker family. They should not be treated as direct replacements without checking their complete specifications.
Schneider MT20H1b Circuit Breaker
Schneider MT25H1b Circuit Breaker
Schneider MT32H1b Circuit Breaker
Schneider MT40H1b Circuit Breaker
Popular Related Models
Other Schneider Electric circuit breaker models that may be considered for low-voltage distribution projects include:
Schneider MT32H1 Circuit Breaker
Schneider MT40H1 Circuit Breaker
Schneider MT50H1 Circuit Breaker
Schneider MT63H1 Circuit Breaker
Schneider MVS20N Circuit Breaker
Schneider MVS32N Circuit Breaker
When purchasing the Schneider MT40H1b, confirm the full model reference, nameplate information, breaker configuration, and required accessories. Matching these details with the installation requirements helps ensure the selected unit is appropriate for the intended electrical distribution system.
Applications
The Schneider MT40H1b is part of Schneider Electric’s Masterpact MT air circuit breaker range. Designed for demanding low-voltage power distribution systems, it is suitable for installations where reliable circuit protection, operational continuity, and effective power management are essential.
Typical applications include:
Industrial power distribution: Protects main and feeder circuits in manufacturing plants and industrial facilities.
Commercial buildings: Supports electrical distribution in large commercial complexes and infrastructure projects.
Power generation facilities: Used in low-voltage distribution sections of power generation systems.
Data centers: Helps protect critical power distribution circuits where continuity is important.
Electrical switchboards: Suitable for integration into appropriately configured low-voltage switchgear and distribution panels.
Advantages and Key Features
Designed for high-capacity distribution
The MT40H1b belongs to the Masterpact MT family and is intended for high-current applications. Its frame and configuration make it suitable for demanding distribution environments.
Flexible protection configuration
Depending on the installed trip unit and accessories, the breaker can support different protection and monitoring requirements. The exact protection functions depend on the selected configuration.
Integration with switchgear systems
The Masterpact MT platform supports a range of electrical and mechanical accessories, allowing the breaker to be configured for different switchboard designs.
Maintainability
The product family is designed for use in professional electrical distribution equipment. Correct installation, inspection, and maintenance help support long-term operational reliability.
Suitable for critical electrical infrastructure
Its application in industrial and commercial distribution systems makes it a practical option for projects requiring robust low-voltage circuit protection.
Technical FAQs
Q1: What is the Schneider MT40H1b used for?
The MT40H1b is an air circuit breaker designed for low-voltage power distribution. It is used to protect electrical circuits against fault conditions according to its installed protection configuration.
Q2: What does the H1b designation indicate?
H1b identifies a performance category within the Masterpact MT product range. The exact breaking capacity must be confirmed against the applicable product documentation and rated voltage.
Q3: Is the MT40H1b suitable for industrial applications?
Yes. It is intended for high-capacity low-voltage distribution systems and can be applied in industrial switchboards when its electrical ratings and configuration meet the project requirements.
Q4: What protection functions can this circuit breaker provide?
Protection functions depend on the installed trip unit. Depending on the selected version, the breaker may support overload, short-circuit, and other protection functions.
Q5: Can the MT40H1b be integrated into an existing switchboard?
It may be suitable if the switchboard is designed for the breaker’s electrical ratings, mounting arrangement, connection system, and accessory configuration. Compatibility should be checked before replacement or installation.
Q6: Does the MT40H1b support remote operation?
Remote operation may be available with the appropriate electrical operating accessories and control arrangements. The required components depend on the specific breaker configuration.
Q7: Can auxiliary contacts be installed?
The Masterpact MT platform supports auxiliary contact accessories in compatible configurations. The correct accessory reference should be selected according to the breaker version.
Q8: What should be checked before commissioning?
Verify the breaker’s rated voltage and current, trip-unit settings, connection tightness, insulation condition, mechanical operation, and compatibility with the switchboard. Commissioning should be performed by qualified electrical personnel.
Q9: What are common reasons for an unexpected trip?
Possible causes include overload, short circuit, incorrect protection settings, wiring faults, or abnormal operating conditions. The trip indication and protection-unit records should be checked to identify the cause.
Q10: Can the MT40H1b replace another Masterpact MT breaker?
Not automatically. Replacement suitability depends on the frame, rated current, breaking capacity, pole arrangement, connection type, mounting design, trip unit, and accessories. Confirm the complete product configuration before selecting a replacement.
