ABB 1SDA074678R1 Moulded Case Circuit Breaker - UL/CSA
Part Number: 1SDA074678R1
Quick Summary
Moulded Case Circuit Breaker XT1S 125 A protects industrial power circuits in distribution panels. Engineers often face space constraints and wiring complexity; this front-terminal, 3-pole design streamlines installation and reduces panel depth. UL489 and CSA certification, CE Declaration of Conformity, and documented environmental compliance (RoHS/REACH, CMRT, EPD) support regulatory adherence and sustainability goals. By aligning with ABB EcoSolutions, this device delivers reliable protection and predictable lifecycle costs, while integrating smoothly with the SACE Tmax XT family for scalable protection architectures and simplified procurement.
Product Information
Extended Description
1SDA074678R1 ABB: C.BREAKER TMAX XT1S 125 UL/CSA FIXED THREE-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMF R 125-1250 A
ABB EcoSolutions
Yes
ABB Site Meeting Group Waste To Landfill Target
UL 2799 Zero Waste To Landfill Validation available
End Of Life Disassembling Instructions
Disassembly instructions Tmax XT XT1
Environmental Product Declaration - EPD
EPD Tmax XT XT1 (IT)
Recyclability Rate of the Product acc. to EN45555
Design for Closing Resource Loops - Standard EN45555 - 55.9 %
REACH Declaration
REACh Declaration ABB Sace circuit breakers
RoHS Information
RoHS Declaration ABB Sace circuit breakers
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration
Environmental Information
Breakers - Packaging disposal information
Order Code US and Canada
XT1SU3125AFF000XXX
EAN
8015644786557
Minimum Order Quantity
1 piece
Customs Tariff Number
85362090
Product Net Width
76.2 mm
Product Net Height
130 mm
Product Net Depth / Length
70 mm
Product Net Weight
1.1 kg
Package Level 1 Units
box 1 piece
Package Level 1 Width
128 mm
Package Level 1 Height
135 mm
Package Level 1 Depth / Length
143 mm
Package Level 1 Gross Weight
1.1 kg
Package Level 1 EAN
8015644786557
Circuit Breaker Type to be Associated
Power Distribution
Product Main Type
SACE Tmax XT
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Suitable for Product Class
SACE Tmax XT
Version
F
CAD Dimensional Drawing
XT1 3p FIXED F
Connecting Capacity Main Circuit
Busbar 45.5 ... 80 mm²
Current Type
AC/DC
Electrical Durability
120 cycles per hour | 8000 cycle
Mechanical Durability
240 cycles per hour | 25000 cycle
Number of Poles
3P
Opening Time
CB with SOR 30 ms | CB with UVR 30 ms
Order Multiple
1 piece
Power Loss
at Rated Operating Conditions per Pole 10.7 W
Rated Current (In)
125 A
Rated Instantaneous Short-Circuit Current Setting (Ii)
500 A
Rated Operational Voltage
600Y/347 V AC | 500 V DC
Rated Uninterrupted Current (Iu)
125 A
Rated Voltage (Ur)
600Y/347 V
Recommended Screw Driver
Main Circuit M6
Release
TMF
Release Type
TM
Setting Range
125 A
Short-Circuit Performance Level
S
Standards
UL489
Sub-type
XT1
Terminal Connection Type
Front
Terminal Type
Bolt
Tightening Torque
6 N·m
Interrupting Rating acc. to UL489
(240 V AC) 65 kA | (480 V AC) 35 kA | (600Y / 347 V AC) 22 kA | (250 V DC) 2 Poles in Series 42 kA | (500 V DC) 4 Poles in Series Kind 50 kA
ATEX Certificate
No certification needed
CSA Certificate (Intrinsic Safe)
9AKK10103A3905
Data Sheet, Technical Information
SACE Tmax XT UL/CSA Low voltage molded case circuit-breakers UL489 and CSA CS22.2 Standards Catalog | SACE Tmax XT UL/CSA TECHNICAL CHARACTERISTICS Low voltage molded case circuit-breakers for UL489 and CSA CS22.2 Standards
Declaration of Conformity - CE
EC Declaration of Conformity Tmax XT1
UL Certificate
1SDL000163R0111
VDE Certificate
No certification needed
Dimension Diagram
XT1 3p-4p fixed front terminals
Mechanical Drawings
XT1 3p-4p fixed front terminals
Wiring Diagram
Circuit diagram for XT1, XT2, XT3 and XT4
Instructions and Manuals
Installation instructions XT1 UL
ETIM 8
EC000228 - Power circuit-breaker for trafo/generator/installation protection
ETIM 9
EC000228 - Power circuit-breaker for trafo/generator/installation protection
IDEA Granular Category Code (IGCC)
4927 >> Molded case circuit breakers
Object Classification Code
Q
UNSPSC
39121616
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
eClass
V11.1 : 27370409
The XT1S 3P TMF molded case breaker delivers precise overload and short-circuit protection for demanding industrial environments, with a 125 A rating and a 600Y/347 V AC operating voltage. This feature translates to reduced unplanned downtime and improved grid reliability in distribution panels, especially where compact protection devices are required in limited-space enclosures. The front-terminal design enables faster wiring, easier field maintenance, and cleaner panel layouts when wiring is dense, while the 6 N·m tightening torque ensures repeatable connections and robust vibrations resilience in harsh installations. With a power loss of 10.7 W per pole, energy efficiency is maintained in continuous operation, supporting lower operating costs over the equipment lifecycle. Compatibility with busbar sizes 45.5 to 80 mm² and a recommended main circuit screwdriver (M6) simplify installation and commissioning, reducing total installation time. The TMF release and 30 ms opening time provide rapid protection against faults, improving machine uptime and safety. UL489 and CSA certifications coupled with CE DoC reinforce compliance for multinational installations, while RoHS, REACH, CMRT, and EPD disclosures enable responsible procurement and end-of-life planning. As part of the SACE Tmax XT ecosystem, XT1S devices share trip characteristics and modularity, enabling scalable protection schemes across panels and machines. Industry professionals also gain confidence from ABB’s end-of-life disassembly guidance for Tmax XT XT1 devices, helping teams plan maintenance and recycling activities. Together these elements translate to measurable reductions in maintenance costs, simplified sourcing, and a stronger overall protection strategy for critical electrical infrastructure.
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FAQs
Install the XT1S TMF by securing the front-terminal connections with a tightening torque of 6 N·m, using a main circuit screwdriver M6 as recommended. Verify busbar connection compatibility for 45.5 to 80 mm² conductors, ensure correct pole alignment, and mount in a suitable panel enclosure. Follow the provided wiring diagram for XT1, XT2, XT3, and XT4 configurations to ensure proper current paths and fault isolation.
The unit is rated for 125 A with a rated operational voltage of 600Y/347 V AC and 500 V DC. Interrupting ratings (UL489) vary by voltage: 65 kA at 240 V AC, 35 kA at 480 V AC, 22 kA at 600Y/347 V AC, plus higher values for certain DC configurations. This ensures suitable protection across typical industrial power distributions and machine infeed sections.
Yes. The 1SDA074678R1 is part of the SACE Tmax XT family, sharing trip characteristics, modularity, and front-terminal installation. This compatibility simplifies panel-wide protection strategies, reduces spare parts complexity, and enables scalable protection across multiple panels and machines, improving maintenance planning and procurement efficiency.
It carries UL489 certification (UL certificate 1SDL000163R0111), CSA certification (9AKK10103A3905), and CE Declaration of Conformity. Environmental and compliance data include RoHS and REACH declarations, CMRT, and Environmental Product Declarations (EPD) for Tmax XT XT1, plus end-of-life disassembly guidance to support sustainable procurement and recycling.
The 1SDA074678R1 delivers reliable protection with low energy loss (10.7 W per pole), reducing operating costs in continuous duty applications. Front-terminal wiring speeds installation, lowering labor costs, while standardized dimensions and compatibility with common busbars minimize panel redesign. Together with the XT ecosystem, it supports predictable maintenance, reduced downtime, and a clearer path to compliant, sustainable end-of-life handling.