Product Overview
ABB SACE Tmax XT is a range of low voltage molded case circuit breakers designed for high performance, advanced protection, connectivity, and ease of use in electrical distribution systems up to 1600 A.
The Tmax XT family bridges the gap between molded case circuit breakers and air circuit breakers by sharing features, trip unit logic, and digital capabilities with the Emax 2 air circuit breaker range. It is designed not only to protect electrical installations but also to act as an active element in modern electrical plants.
With integrated connectivity, advanced metering, digital upgradability, and cloud integration through ABB Ability™ Energy and Asset Manager, Tmax XT supports both local and remote supervision, commissioning, maintenance, and energy management.
The range includes seven frame sizes from XT1 to XT7, covering AC distribution, DC distribution, switch-disconnector applications, motor protection, generator protection, and advanced power management solutions.
Product Features
Advanced Connectivity
Tmax XT is designed as an active connected device in electrical installations, enabling both local and remote interaction.
Connectivity features include:
· Bluetooth connectivity
· Ekip Connect software for commissioning
· Remote communication through multiple protocols
· Cloud connectivity via Ekip Com Hub
· Integration with ABB Ability™ Energy and Asset Manager
· Communication modules for Modbus, Ethernet, Profinet, IEC 61850 and Ekip Link
Easy Selection, Installation and Upgrading
The range is designed to simplify all stages of use, from product selection to installation and commissioning.
Key advantages include:
· Product selection through e-Configure software
· Modular structure
· One-fits-all accessories
· Simplified ordering
· Field installation of accessories
· Plug-in and withdrawable versions
· DIN rail mounting brackets for XT1 to XT4
· Digital upgrades through ABB Ability Marketplace™
High Performance and Protection
Tmax XT provides high breaking capacities and advanced protection functions in compact frame sizes.
Performance highlights include:
· Rated current up to 1600 A
· Breaking capacity up to 200 kA at 415 V AC for selected frames
· AC and DC distribution versions
· Thermal-magnetic, electronic and advanced digital trip units
· Advanced protection functions with ANSI codes
· Integrated protection logics for demanding applications
Accurate Measurement and Energy Monitoring
With Ekip Touch and Hi-Touch trip units, Tmax XT offers advanced metering and energy monitoring functions.
Measurement features include:
· Current measurement
· Voltage measurement
· Power measurement
· Energy measurement
· 1% accuracy certification for selected electrical parameters
· Network analyzer for power quality monitoring
Digital Customization
The trip units can be customized and upgraded digitally through the ABB Ability Marketplace™.
Available digital options include:
· Protection packages
· Measurement packages
· Function bundles
· Advanced solutions
· Embedded ATS
· Adaptive Load Shedding
· Power Controller
· Diagnostics bundles
Safety and Reliability
Tmax XT incorporates construction and operational features designed to enhance safety and long-term reliability.
Safety features include:
· Double insulation
· Positive operation
· Isolation behavior according to IEC 60947-2
· Segregation of live parts from the front operating area
· Tropicalization for hot-humid climates
· Clear contact position indication
· Keylocks and padlocks
· Terminal covers and phase separators
Wide Range of Applications
The product family is suitable for multiple applications, including:
· Low voltage power distribution
· Motor protection
· Generator protection
· DC distribution systems
· Switch-disconnector applications
· General disconnection
· Bus ties
· Critical power applications
· Energy management systems
Main Functions
AC Distribution Protection
Tmax XT provides protection for low voltage AC distribution networks through automatic circuit breakers available in seven frame sizes from XT1 to XT7.
Protection functions include:
· Overload protection
· Selective short-circuit protection
· Instantaneous short-circuit protection
· Earth fault protection
· Neutral protection
· Isolation
DC Distribution Protection
Dedicated versions are available for DC networks up to 750 V DC, depending on the frame and pole configuration.
DC protection applies to:
· DC distribution systems
· Battery systems
· Renewable energy installations
· Industrial DC networks
Switch-Disconnector Function
XT1D to XT7D switch-disconnectors are used for general disconnection, bus ties, and switching applications.
They support utilization categories:
· AC-22A
· AC-23A
· DC-22A
· DC-23A
Thermal-Magnetic Protection
Thermal-magnetic trip units are suitable for AC and DC applications.
Available types include:
· TMD: Adjustable thermal threshold and fixed magnetic threshold
· TMA: Adjustable thermal and magnetic thresholds
· MA: Magnetic-only trip unit for motor protection
· TMG: Low magnetic threshold for generator protection
Electronic Protection with Ekip Dip
Ekip Dip trip units are microprocessor-based electronic trip units for AC applications.
Available versions include:
· LS/I
· LIG
· LSI
· LSIG
· Ekip M Dip for motor protection
· Ekip G Dip for generator protection
Main functions include:
· Dip switch settings
· Thermal memory
· LED signaling
· Voltage, power and energy measurement with Ekip Dip Measuring
Advanced Protection with Ekip Touch / Hi-Touch
Ekip Touch and Ekip Hi-Touch trip units provide advanced protection and metering functions.
Protection functions include:
· L Overload protection
· S Selective short-circuit protection
· I Instantaneous short-circuit protection
· G Earth fault protection
· 2I Second instantaneous short-circuit / Reduced Energy Let-Through
· UV Undervoltage protection
· OV Overvoltage protection
· RP Reverse active power protection
· ROCOF Rate of change of frequency protection
· Synchrocheck for parallel operation of power sources
Datalogger Function
The datalogger records analog measurements and digital events during trigger conditions.
It helps users analyze:
· Trips
· Alarms
· Network disturbances
· Electrical events
· Fault causes
Network Analyzer
The network analyzer evaluates power quality and detects network disturbances.
It supports analysis of:
· Harmonics
· Micro-interruptions
· Voltage quality
· Power quality events
Dual Setting
Dual Setting allows two independent sets of protection parameters, Set A and Set B, enabling quick adaptation to different operating conditions.
Remote Control and Signaling
Tmax XT supports control and signaling accessories for remote supervision and operation.
Available functions include:
· Shunt opening release
· Undervoltage release
· Closing release for XT7 M
· Auxiliary contacts
· Position contacts
· Early auxiliary contacts
· Trip signaling contacts
· Stored energy motor operators
· Direct action motor operators
Key Specifications
|
Item |
Specification |
| Rated current range | Up to 1600 A |
| Frame sizes | XT1, XT2, XT3, XT4, XT5, XT6, XT7 / XT7 M |
| Poles | 3P, 4P |
| AC breaking capacity | Up to 200 kA at 415 V AC |
| DC voltage | Up to 750 V DC |
| Switch-disconnector range | XT1D to XT7D |
| Trip units | TM, Ekip Dip, Ekip Touch, Ekip Hi-Touch |
| Communication | Bluetooth, Modbus, Ethernet, Profinet, IEC 61850, Ekip Link, Ekip Com Hub |
| Measurement accuracy | Current 1% / 0.5%, voltage 0.5%, power and energy 2% / 1% |
| Standards | IEC 60947-2, EN 60947 |
| Versions | Fixed, plug-in, withdrawable |
