ABB 1SDA068165R1 XT2H 160A Breaking Part (Industrial-Grade 3-Pole MCCB)

The ABB 1SDA068165R1 represents a precision-engineered breaking mechanism within the globally recognized TMax XT circuit breaker platform. Designed for industrial power distribution networks demanding uncompromising reliability, this 3-pole molded case circuit breaker (MCCB) core delivers robust overcurrent and fault protection across 690V AC and 500V DC systems rated up to 160 amperes.

Built for electrical contractors, panel builders, and facility engineers managing critical infrastructure, the XT2H 160 breaking part solves persistent challenges in selective coordination, arc flash mitigation, and maintenance accessibility. Its modular architecture enables field-configurable protection strategies without costly downtime or complete breaker replacement.

Key differentiators include Italian manufacturing precision, 50kA short-circuit interruption capability, and compatibility with ABB's full ecosystem of electronic trip units and communication accessories—making it the intelligent choice for future-ready electrical distribution systems.

Core Features & Benefits

→ Modular Trip Unit Architecture
Field-swappable protection from basic thermal-magnetic to programmable electronic units with Modbus/Profibus integration, eliminating obsolescence and enabling protection upgrades as system requirements evolve.

→ 50kA Breaking Capacity at 400V
Handles severe fault currents up to 50,000 amperes, protecting downstream equipment and personnel while maintaining selective coordination with upstream protective devices in tiered distribution systems.

→ Dual Voltage Rating (AC/DC)
Certified for 690V AC three-phase and 500V DC applications, supporting both traditional industrial loads and emerging renewable energy installations including solar inverters and battery storage systems.

✓ Extended Electrical Life (25,000 Operations)
Silver-alloy contacts and advanced arc chute design deliver 25,000 full-load switching cycles before maintenance, reducing total cost of ownership by 40% compared to standard-duty breakers.

✓ Tool-Free Trip Unit Replacement
Plug-in trip unit interface allows technicians to upgrade protection settings in under 3 minutes without de-energizing adjacent circuits or removing the breaking part from the panel.

✓ Global Certification Portfolio
Meets IEC 60947-2, UL 489, CSA C22.2 No. 5, and marine standards (DNV-GL, ABS), ensuring compliance across international projects and reducing approval timelines by 60%.

Typical Application Scenarios

Manufacturing Automation & Robotics
Protects motor control centers feeding robotic welding cells, CNC machining centers, and conveyor systems. The XT2H 160's adjustable instantaneous trip settings prevent nuisance tripping during motor inrush while maintaining 10ms fault clearing for arc flash Category 2 compliance.

Commercial HVAC Distribution
Serves as main breaker protection for rooftop packaged units, chiller systems, and variable frequency drives in office towers and retail complexes. Temperature-compensated thermal elements maintain accurate overload protection from -25°C to +70°C ambient conditions.

Data Center Critical Power Paths
Deployed in UPS output distribution and power distribution unit (PDU) applications where sub-cycle fault clearing prevents cascading failures. Electronic trip units provide real-time current monitoring and predictive maintenance alerts via building management systems.

Solar & Energy Storage Systems
Handles bi-directional DC current flow in photovoltaic combiner boxes and battery inverter circuits up to 500V DC. Specialized DC arc interruption technology safely extinguishes sustained arcs without auxiliary power sources.

Marine & Offshore Platforms
Withstands vibration, salt fog, and temperature extremes in shipboard electrical rooms and offshore drilling platforms. Corrosion-resistant hardware and IP20 enclosure rating ensure 20-year service life in harsh maritime environments.

Technical Parameters & Selection Guide

Selection Criteria: Choose the XT2H 160 when your application requires breaking capacity exceeding 36kA (use XT2S for lower fault levels), when future trip unit upgrades are anticipated, or when integrating with ABB's Ability™ digital ecosystem for predictive maintenance. For applications below 125A, consider the XT1 series for cost optimization.

Extended Functions

Digital Integration Capabilities
When paired with Ekip electronic trip units, the XT2H 160 transforms into an intelligent protection node. Modbus RTU and Profibus DP communication modules enable real-time energy monitoring, harmonic analysis, and remote trip/close commands through SCADA or building automation systems. Historical fault logs and waveform capture assist in root cause analysis during electrical incidents.

Advanced Protection Curves
Electronic trip units offer programmable I²t curves, ground fault protection (30mA to 30A sensitivity), and zone-selective interlocking (ZSI) for coordinated tripping with upstream devices. Custom protection profiles can be stored and replicated across multiple breakers via USB configuration tools.

Customization Options
Factory-configured solutions include custom terminal lugs for bus bar connections, special paint finishes for corrosive environments, and pre-wired auxiliary contact assemblies. Consult our application engineering team for project-specific modifications including extended operating temperature ranges or seismic qualification.

Delivery & Service Assurance

Lead Times:
• Standard configurations: 3–5 business days (in-stock items)
• Custom trip unit combinations: 7–10 business days
• Engineered solutions: 15–20 business days (includes coordination study)

Warranty Coverage:
12-month manufacturer warranty covering material defects and workmanship failures. Extended warranty programs available for critical infrastructure applications requiring 5-year coverage.

Technical Support:
Our certified electrical engineers provide complimentary services including selective coordination studies, arc flash hazard analysis (IEEE 1584), and AutoCAD panel layout assistance. Post-installation support includes commissioning guidance and troubleshooting via phone, email, or remote video consultation.

Documentation Package:
Each unit ships with installation manual, dimensional drawings, trip curve charts, and calibration certificate. Digital resources include 3D STEP files, Revit families, and ETAP/SKM PowerTools libraries for system modeling.

Frequently Asked Questions

How does the XT2H differ from the XT2S breaking part in real-world installations?
The XT2H features enhanced arc interruption chambers and silver-tungsten contacts enabling 50kA breaking capacity versus 36kA for the XT2S. In high-fault applications (>25kA available fault current), the XT2H prevents catastrophic breaker failure and reduces arc flash incident energy by 30–40%. Both models share identical mounting footprints and accessory compatibility.

Can I upgrade from a thermal-magnetic trip unit to an electronic unit without replacing the breaking part?
Yes—the XT2H 160 accepts all TMax XT trip units through a standardized plug-in interface. Upgrades require no tools and take approximately 2 minutes. Ensure the new trip unit's current rating matches or is lower than the 160A breaking part rating. Electronic trip units require auxiliary power (24V DC or self-powered CT models available).

What is the maximum conductor size this breaker can accommodate?
Front terminals accept 16mm² to 95mm² conductors (AWG 6 to 3/0). For larger feeders, specify rear-connected models or use compression lugs. Aluminum conductors require anti-oxidant compound and torque values per NEC 110.14. Terminal torque specification: 25 Nm (18.4 lb-ft).

Is this breaking part suitable for generator paralleling applications?
Yes, when equipped with electronic trip units featuring reverse power protection and synchronization check relays. The XT2H 160's four-pole variant (1SDA068166R1) provides neutral switching required by some utility interconnection standards. Consult IEEE 1547 and local utility requirements for specific protection settings.

How do I verify compatibility with existing TMax XT accessories in my inventory?
All XT2 frame accessories (auxiliary contacts, shunt trips, motor operators) are cross-compatible regardless of breaking capacity (XT2S, XT2H, XT2N). Verify accessory voltage ratings match your control circuit (common options: 24V DC, 120V AC, 240V AC). Accessory catalog numbers beginning with "1SDA06" confirm XT2 compatibility.

What maintenance intervals does ABB recommend for this breaking part?
Perform visual inspection and contact resistance measurement every 12 months in normal-duty applications (≤50 operations/month). High-cycle applications (>200 operations/month) require semi-annual inspection. Contact replacement typically occurs after 25,000 electrical operations or if contact resistance exceeds 150 microhms. Detailed maintenance procedures are outlined in publication 1SDH001162R0001.

Ready to Optimize Your Power Distribution System?

Contact our technical sales team for application-specific recommendations, competitive project pricing, and coordination study assistance. We support global shipping with expedited options for urgent replacements and project deadlines.

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