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Index
MOULDED CASE CIRCUIT BREAKERS MSX
General technical data
Time/Current characteristics
Compact MCCBs - MSXc
Traditional MCCBs - MSX
Electronic MCCBs - MSXE
MCCBs with residual current protection - MSXD
Accessories (auxiliary contacts, releases, motor operator, rotary handles and interlock)
Compact MCCBs - MSXc
Traditional MCCBs (MSX), electronic MCCBs (MSXE), MCCBs with RCD (MSXD)
Automatic transfer switch
Connections and temperature ratings
Compact MCCBs - MSXc
Traditional MCCBs (MSX), electronic MCCBs (MSXE), MCCBs with RCD (MSXD)
Dimension
Circuit breakers (fixed and plug-in version/with and without motor operator)
Direct and transmitted rotary handles
Terminal covers and interpole barriers
Link and wire mechanical interlocks
For technical information contact the Technical Assistance Service or visit gewiss.com
Technical Information
page 2
page 7
page 12
page 21
page 37
page 41
page 50
page 68
page 77
page 82
page 90
page 148
page 157
page 163
Version 2.0
1
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Summarization of Contents
MSX Moulded Case Circuit Breakers
MSX General Technical Data
Provides fundamental technical specifications for MSX circuit breakers, including ratings and performance.
MSX Time/Current Characteristics
Details tripping curves and time-current characteristics for overload and short-circuit protection.
MSX Accessories
Covers optional internal and external accessories for enhancing functionality and control.
MSX Dimensions
Provides detailed dimensional drawings and mounting information for installation planning.
MSXM Switch Disconnector Technical Data
MSXM Technical Data Overview
Presents key technical specifications for MSXM switch disconnectors, including electrical and mechanical properties.
MSXE Electronic MCCB
MSXE Adjustment Dials
Explains the function and settings of adjustment dials for overload and short-circuit protection.
MSXE Time/Current Characteristics
Details tripping curves and time-current characteristics for electronic protection units.
MSXE Peak Current Characteristics
Presents graphs showing maximum let-through peak current under short-circuit conditions.
MSXD Residual Current Protection MCCB
MSXD Adjustment Dials
Details the settings for residual current (IΔn) and time delay (Δt) protection.
MSXD Time/Current Characteristics
Shows tripping curves related to thermal-magnetic protection and residual current.
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