ABB 1SDA123528R1 Moulded Case Circuit Breaker - IEC 60947-2
Part Number: 1SDA123528R1
Quick Summary
ABB 1SDA123528R1 is a DC Moulded Case Circuit Breaker for 3P systems protecting industrial DC power networks. Engineers routinely contend with nuisance trips, downtime, and difficult protective coordination; this device delivers reliable tripping and high fault-current capability with straightforward installation. It complies with IEC 60947-2 and GB/T 14028.2, supported by CE conformity and RoHS declarations for regulatory assurance. Designed for ABB EcoSolutions environments, it aids lifecycle-cost reduction, improves uptime, and simplifies maintenance in DC-driven drives and battery charging systems, making it a practical choice for panel builders and OEMs seeking robust, standards-based protection. Its compact footprint, fixed terminal design, and 3P DC operation streamline installation in existing cabinets.
Product Information
Extended Description
1SDA123528R1 ABB: XT2S160 DC TMA125 FF 3P
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 XT2 TM
Environmental Product Declaration - EPD
EPD Tmax XT XT2 TM (CN)
Recyclability Rate of the Product acc. to EN45555
Design for Closing Resource Loops - Standard EN45555 - 55.7 %
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)
Document availability on demand
Customs Tariff Number
85362000
Product Net Width
90 mm
Product Net Height
130 mm
Product Net Depth / Length
82.5 mm
Product Net Weight
1.2 kg
Product Name
Moulded Case Circuit Breaker
Product Type
CB
Version
F
Current Type
DC
Mechanical Durability
25000 cycle | ;240 cycles per hour
Number of Poles
3P
Power Loss
at Rated Operating Conditions per Pole 11.4 W
Rated Current (In)
125 A
Rated Impulse Withstand Voltage (Uimp)
8 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Voltage
500 V DC
Rated Service Short-Circuit Breaking Capacity (Ics)
(250 V DC) 2 Poles in Series 50 kA | (500 V DC) 3 Poles in Series 50 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)
(250 V DC) 2 Poles in Series 50 kA | (500 V DC) 3 Poles in Series 50 kA
Rated Uninterrupted Current (Iu)
160 A
Release
TMA
Release Type
TM
Short-Circuit Performance Level
S
Standards
IEC 60947-2 | GB/T 14028.2
Sub-type
XT2
Terminal Connection Type
Fixed Circuit-Breakers
Declaration of Conformity - CE
EC Declaration of Conformity Tmax XT2
Instructions and Manuals
Installation instructions XT2 DC IEC
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
125 A rating for 3P DC distribution provides precise protection against overcurrent while minimizing nuisance trips; this translates to reduced unplanned downtime and steadier startup of DC drives in automation lines. The fixed terminal design simplifies installation and reduces field wiring time, cutting commissioning costs while improving panel density for compact control cabinets. High fault-current capability (Ics/Icu up to 50 kA) and an 8 kV impulse withstand deliver robust protection for DC drives and battery charging systems, enabling safer disconnection during faults and minimizing equipment damage. A rated insulation voltage of 1000 V and a rated operational voltage of 500 V DC ensure reliability across demanding industrial DC networks, while 11.4 W per pole power loss supports cooler control panels and lower cooling costs. The 25,000-cycle mechanical durability supports frequent switching tasks common in automation or renewable energy interfaces, reducing replacement cycles. ABB EcoSolutions materials and design deliver 55.7% recyclability, an EPD, and RoHS/REACH compliance, helping manufacturers meet sustainability targets and regulatory requirements without compromising protection performance. The product’s dimensions (90 mm width x 130 mm height x 82.5 mm depth) and fixed-terminal configuration ease retrofit into existing panels, easing installation in retrofit projects and new builds alike.
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FAQs
Yes. The 1SDA123528R1 is a fixed circuit-breaker designed for 3-pole DC applications. It features fixed terminals for straightforward wiring and a compact footprint (90 mm width, 130 mm height, 82.5 mm depth) that fits standard electrical cabinets. Its fixed-terminal design reduces field assembly time, while the 3P configuration supports robust protection in DC distribution panels and space-efficient retrofit projects. Confirm panel clearance and ensure compatible busbar dimensions before installation.
Key specs include rated current In of 125 A, rated operational voltage 500 V DC, rated insulation voltage Ui of 1000 V, and rated impulse withstand voltage Uimp of 8 kV. Service and ultimate short-circuit breaking capacities are 50 kA for both 250 V DC (2 poles in series) and 500 V DC (3 poles in series). This combination provides strong protection against DC faults while maintaining safe discharge paths in industrial drives.
Absolutely. The 3P DC XT2 family is well-suited for DC drives, battery charging systems, and DC distribution in automation panels. Its 125 A rating, high short-circuit capacity, and 500 V DC operating voltage align with typical DC bus protection needs. The device's 11.4 W per pole power loss helps manage thermal load in densely packed control cabinets, improving reliability in continuous operation environments.
The product complies with IEC 60947-2 and GB/T 14028.2, and carries CE conformity and RoHS declarations. ABB also provides End-of-Life disassembly instructions and an Environmental Product Declaration (EPD). CMRT documentation is available on demand. This helps meet regulatory requirements and sustainability goals while ensuring protective performance for DC systems.
With a mechanical durability rating of 25,000 cycles (at 240 cycles/hour), the unit supports frequent switching without premature wear. End-of-life disassembly instructions and a 55.7% recyclability rate support maintenance planning and recycling programs. Reduced downtime from reliable protection, combined with lower heat generation due to modest power loss, translates to improved uptime and lower total cost of ownership for DC-driven automation and power systems.