ABB 1SDA123561R1 Moulded Case Circuit Breaker - IEC 60947-2
Part Number: 1SDA123561R1
Quick Summary
ABB 1SDA123561R1 Moulded Case Circuit Breaker is a DC-rated protection device designed for reliable fault isolation in industrial power systems. Engineers frequently grapple with space constraints, wiring complexity, and the need for consistent DC protection across demanding applications. The device is certified to IEC 60947-2 and GB/T 14028.2 with CE conformity, supporting global electrical compliance and safer cross-border deployments. The compact front-terminal design, 125 A rating, and 500 V DC operating voltage increase panel efficiency while reducing maintenance cycles. Combined with robust 25,000-cycle mechanical durability and 85 kA short-circuit ratings, it lowers total cost of ownership in data centers, machine controls, and battery storage systems.
Product Information
Extended Description
1SDA123561R1 ABB: C.BREAKER TMAX XT2L 160 DC FIXED FOUR-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMA R 125
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
120 mm
Product Net Height
130 mm
Product Net Depth / Length
82.5 mm
Product Net Weight
1.6 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
4P
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 85 kA | (500 V DC) 3 Poles in Series 85 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)
(250 V DC) 2 Poles in Series 85 kA | (500 V DC) 3 Poles in Series 85 kA
Rated Uninterrupted Current (Iu)
160 A
Release
TMA
Release Type
TM
Short-Circuit Performance Level
L
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)
Four-pole XT2 design with fixed terminals and a TMA release delivers precise simultaneous trip across all poles, ensuring coordinated shutdown during faults. This reduces the risk of unequal load sharing and avoids nuisance tripping in multi-branch DC buses.125 A rated current supports typical DC distribution loads without derating, enabling compact cabinet layouts and predictable protection margins in battery storage and industrial controls. Rated operational voltage of 500 V DC and insulation up to 1000 V provide robust headroom for high-voltage DC applications, while the 8 kV rated impulse withstand voltage adds resilience against surge events in industrial environments. Rated service short-circuit breaking capacity of 85 kA at both 250 V DC (two poles) and 500 V DC (three poles) configurations delivers reliable fault clearing under heavy fault currents, reducing conductor damage and downtime. Power loss of 11.4 W per pole minimizes heat generation, supporting cooler panels and longer component life. Front-terminal construction and compact dimensions simplify installation and wiring, while RoHS/REACH compliance and a 25,000-cycle mechanical durability rating provide confidence in long-term reliability and lifecycle costs.
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FAQs
ABB 1SDA123561R1 is a four-pole, fixed-terminal DC moulded-case circuit breaker with a front-terminal design that simplifies wiring and reduces panel depth. Its 120 mm width, 130 mm height, and 82.5 mm depth enable compact cabinet layouts, while front terminals streamline maintenance access. For panel integration, ensure compatibility with 500 V DC operating voltage, 1000 V insulation rating, and the 125 A current rating, plus adherence to IEC 60947-2 mounting and termination practices.
Key specs include 125 A rated current, 500 V DC rated operational voltage, 1000 V insulation voltage, 8 kV impulse withstand, and 85 kA short-circuit ratings (250 V DC two-pole or 500 V DC three-pole configurations). It supports 4P configuration with a TM/TMA release, enabling reliable simultaneous pole tripping. Use these values to size feeders, circuit lengths, and protection coordination in DC systems.
Yes. ABB 1SDA123561R1 carries IEC 60947-2 compatibility and a CE Declaration of Conformity for Tmax XT2 series. GB/T 14028.2 is noted in the documentation, supporting compliance in multiple regions. This helps ensure regulatory alignment, simplifies procurement across global sites, and reduces certification work during system integration.
The device offers up to 25,000 mechanical cycles, which supports long service life in frequent-cycling applications. Its low per-pole power loss (11.4 W) helps minimize heat generation, reducing cooling requirements and extending component life. Front-terminal access streamlines inspections, while RoHS/REACH compliance aids in safe maintenance and end-of-life handling.
Best-suited for DC power distribution panels, data centers, battery storage systems, and machine-control cabinets, where reliable short-circuit protection and fast isolation are critical. The 125 A rating, 500 V DC operation, and 85 kA fault-current capacity provide robust protection for medium-size DC feeders, while IEC 60947-2 compliance ensures compatibility with standard industrial controls and safety practices.