ABB 1SDA123511R1 Moulded Case Circuit Breaker - 4P DC XT2
Part Number: 1SDA123511R1
Quick Summary
ABB 1SDA123511R1 is a four-pole DC moulded case circuit breaker designed for robust protection in industrial control panels and DC distribution. Engineers often struggle with quick fault isolation and space-constrained enclosures, making a reliable CB essential. This device delivers dependable interrupt capacity, a compact footprint, and front-terminal accessibility that simplifies installation in retrofit projects. With IEC 60947-2 and GB/T 14028.2 compliance and CE conformity, it supports global regulatory requirements while reducing risk. The ABB EcoSolutions lineage emphasizes lifecycle thinking, including disassembly instructions and an environmental profile. By pairing 32 A nominal current with low power loss per pole, it helps to improve efficiency, reduce heat, and lower operating costs in continuous DC applications such as motor drives and power supplies.
Product Information
Extended Description
1SDA123511R1 ABB: C.BREAKER TMAX XT2N 160 DC FIXED FOUR-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMD R 32
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 2.57 W
Rated Current (In)
32 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 36 kA | (500 V DC) 3 Poles in Series 36 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)
(250 V DC) 2 Poles in Series 36 kA | (500 V DC) 3 Poles in Series 36 kA
Rated Uninterrupted Current (Iu)
160 A
Release
TMD
Release Type
TM
Short-Circuit Performance Level
N
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)
The four-pole DC design with a 32 A rating provides precise protection for DC bus bars and motor drives, reducing nuisance tripping while ensuring safe shutdown during faults. In practice, this translates to shorter downtime and smoother coordination with upstream protection devices in panels used across manufacturing, process, and material handling environments. With an 8 kV impulse withstand and Ics/Icu up to 36 kA, the device tolerates high-energy surges and short-circuit events, improving overall system reliability and safeguarding downstream electronics. A low power loss of 2.57 W per pole reduces heat generation and cooling load in enclosed spaces, enhancing energy efficiency and extending component life. Front-terminal fixed connections simplify installation, cut wiring errors, and support rapid retrofits in existing enclosures. Lifecycle features—EPD data, RoHS, REACH declarations, and end-of-life disassembly instructions—facilitate sustainability reporting and procurement compliance. Mechanical durability reaches up to 25,000 cycles, with a duty potential of 240 cycles per hour, making it suitable for continuous control circuits and high-usage drives. All of these aspects align with IEC 60947-2 and GB/T 14028.2 standards, easing plant-wide standardization and maintenance planning.
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FAQs
The 1SDA123511R1 is a four-pole DC moulded case breaker with fixed front-terminals designed for direct panel mounting. It aligns with the XT2 family’s mounting and electrical characteristics, ensuring straightforward retrofits in existing control panels. When integrating with XT2 systems, verify the rated current, voltage, and the series configuration to maintain safe disconnection duties and correct accessory compatibility.
Key specs include a rated current of 32 A, rated operational voltage of 500 V DC, rated insulation voltage of 1000 V, and a rated impulse withstand voltage of 8 kV. It provides a short-circuit capability of up to 36 kA in appropriate configurations and a power loss of 2.57 W per pole, supporting efficient operation in continuous DC applications.
Yes. The 4P DC Tmax XT2 design is tailored for DC protection in drives and power distribution in industrial environments. It delivers reliable fault interruption, adequate interrupting capacity for high-energy DC faults, and compact installation suitable for panel-mounted motor controls and power conversion systems, while meeting IEC 60947-2 requirements for safety and performance.
The device offers up to 25,000 mechanical operating cycles, with a duty rate of around 240 cycles per hour, indicating strong durability for frequent switching. End-of-life considerations include disassembly instructions and an environmental profile (EPD) along with RoHS and REACH declarations to simplify recycling, disposal planning, and regulatory compliance during procurement and maintenance audits.
The product complies with IEC 60947-2 and GB/T 14028.2, and carries CE conformity (EC Declaration of Conformity). It supports RoHS and REACH declarations, and ABB provides end-of-life and environmental data (EPD) along with recyclability information. This combination streamlines regulatory reviews, import documentation, and sustainability reporting for global procurement teams.