ABB 1SDA123512R1 Moulded Case Circuit Breaker - 4P XT2 TM
Part Number: 1SDA123512R1
Quick Summary
ABB 1SDA123512R1 is a moulded case circuit breaker designed for DC distribution in industrial automation panels. Engineers often struggle with reliable protection and easy installation in space-constrained DC systems, making front-terminal access and a dependable thermomagnetic release essential. It complies with IEC 60947-2 and GB/T 14028.2, carries a CE Declaration of Conformity, and is complemented by an ABB EcoSolutions Environmental Product Declaration and recyclability data to support sustainability goals. In practice, this ABB XT2 TM device delivers dependable protection for DC networks while aligning with modern maintenance and cost-reduction targets, making it a strong fit for data centers and manufacturing panels seeking robust, compliant protection.
Product Information
Extended Description
1SDA123512R1 ABB: C.BREAKER TMAX XT2N 160 DC FIXED FOUR-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMA R 40
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 3.71 W
Rated Current (In)
40 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
TMA
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)
Feature → Business Impact → Application: Four-pole DC protection provides reliable shutdown in 500 V DC networks, reducing fault propagation and downtime; this translates to improved system uptime and safer maintenance in critical panels. Feature → Application compatibility → Front-terminal fixed circuit-breaker design enables faster installation and easier field servicing, minimizing commissioning time and allowing compact layouts in space-constrained industrial cabinets. Feature → Mechanical durability and performance → 25,000 cycles of operation and a rated short-circuit capacity up to 36 kA enhance lifecycle reliability and resilience in harsh industrial environments, supporting long-term TCO reductions. Feature → Low power loss and thermal performance → 3.71 W per pole loss reduces heat in enclosure spaces, improving cooling efficiency and panel thermal management. Feature → Compliance and eco-design → IEC 60947-2/GB/T 14028.2, RoHS, REACH, RoHS status and EPD support regulatory adherence and sustainability reporting for modern procurement. Feature → Application versatility → 4P XT2 TM configuration with 40 A rating suits a wide range of DC distribution and motor control scenarios in automation and energy-intensive industries.
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FAQs
For installation in a DC distribution panel, mount the four-pole breaker using fixed circuit-breaker terminals and ensure alignment with the XT2 TM release mechanism. Use front-terminal access to simplify wiring, torque terminals to ABB’s specified values, and verify correct phase sequencing. The device’s 40 A rating suits medium-current DC feeders, while its 500 V DC operating voltage supports high-voltage DC networks commonly found in industrial automation.
Key specs include a rated current of 40 A, rated insulation voltage of 1000 V, rated operational voltage of 500 V DC, and a rated impulse withstand voltage of 8 kV. It provides 36 kA short-circuit capacity for the configured poles, 4P, and a documented 25,000 mechanical cycles. Power loss is 3.71 W per pole, indicating efficient thermal performance in typical panels.
Yes, the 1SDA123512R1 is well-suited for data center DC distribution thanks to its 500 V DC rating, 4P construction, and robust short-circuit performance. Its front-terminal design supports fast installation and maintenance, while IEC 60947-2 compliance and ABB EcoSolutions documentation help satisfy reliability, safety, and sustainability requirements common in data center environments.
The product complies with IEC 60947-2 and GB/T 14028.2, includes a CE Declaration of Conformity, RoHS compliance with EU Directive 2011/65/EU and Amendment 2015/863, and REACH declarations. It also references WEEE categorization and an Environmental Product Declaration (EPD) under ABB EcoSolutions, supporting environmental and regulatory reporting for procurement.
The 1SDA123512R1 offers high reliability with 25,000 mechanical cycles and 3.71 W per pole power loss, reducing thermal load and cooling costs. Front-terminal access speeds servicing, and its robust Ics/Icu ratings help minimize downtime during faults. Over the device life, predictable performance and compliance support lower total cost of ownership and improve system availability.