ABB 1SDA123542R1 MCCB 3P DC XT2 - IEC 60947-2
Part Number: 1SDA123542R1
Quick Summary
ABB 1SDA123542R1 is a DC MCCB designed for reliable protection in high-current DC power distribution. Operators often contend with complex wiring, space constraints, and downtime when protecting critical DC circuits; this device offers front terminals and a compact 3P XT2 footprint to streamline installation and servicing. It complies with IEC 60947-2 (GB/T 14028.2) and CE requirements, with RoHS and REACH declarations supporting global sourcing. Its durability and clear ratings address safety and performance concerns, reducing misapplication risks. By aligning with ABB EcoSolutions and lifecycle considerations such as recycling and end-of-life disassembly, the product helps you meet sustainability targets while maintaining system availability and total cost of ownership advantages. In short, it supports robust, compliant DC protection with practical business value for industrial automation projects.
Product Information
Extended Description
1SDA123542R1 ABB: C.BREAKER TMAX XT2L 160 DC FIXED THREE-POLE WITH FRONT TERMINALS AND THERMOMAGNETIC RELEASE TMD R 20
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 1.62 W
Rated Current (In)
20 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
TMD
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)
Feature: Three-pole DC XT2 design with 20 A rated current. Business Impact: Enables reliable isolation of small to mid-size DC loads while keeping wiring compact and panel footprint minimal. Application: DC distribution panels in automated lines and battery-supported systems. Feature: Front-terminal configuration. Business Impact: Simplifies wiring and service since connections are accessible from the front, reducing install time and downtime. Application: Retrofit and new installations where space is tight or where downtime must be minimized. Feature: Low power loss of 1.62 W per pole. Business Impact: Lowers heat generation and energy consumption in continuous operation, improving overall efficiency. Application: Continuous process control and high-availability DC drives. Feature: High short-circuit performance (Ics/Icu up to 85 kA depending on voltage). Business Impact: Strong protection margin against fault currents, enhancing system safety and uptime. Application: Large DC motor drives, power distribution cabinets, and critical automation panels. Feature: Compliance and lifecycle attributes (IEC 60947-2, RoHS, REACH, EPD, recyclability). Business Impact: Reduces regulatory risk and supports sustainability targets while streamlining end-of-life planning. Application: Global deployments requiring regulatory compliance and responsible disposal. Insight: The combination of a compact footprint, robust electrical ratings, and lifecycle considerations provides a practical, future-proof solution for modern industrial automation environments.
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FAQs
The device uses fixed terminals designed for robust, permanent wiring. When installing, ensure conductor sizing matches the 20 A rating and that connections are torque-appropriate per ABB guidelines. Plan for 500 V DC service conditions and verify correct front-access wiring to minimize future maintenance time.
Key specs include three poles, rated current 20 A, rated operational voltage 500 V DC, rated insulation voltage 1000 V, and rated impulse withstand voltage 8 kV. The product provides 85 kA service and ultimate short-circuit breaking capacity (Ics/Icu) for 250 V DC or 500 V DC configurations, ensuring strong fault protection.
Yes. The 3P DC XT2 design with front terminals, 20 A rating, and 500 V DC operating capability makes it well-suited for DC distribution panels in automation and drive applications. Its compact form factor, reliable protection, and compliance with IEC 60947-2 support safe, efficient panel design and maintenance planning.
It aligns with IEC 60947-2 and GB/T 14028.2 standards, carries CE conformity, and follows RoHS and REACH declarations. Additional lifecycle and environmental disclosures include EPD for Tmax XT/XT2 TM and recyclability information per EN45555, supporting responsible procurement and end-of-life planning.
Mechanical durability is rated at 25,000 cycles, with a front-terminal design that simplifies replacement and wiring. Maintenance considerations include following disassembly and installation guidelines, and planning for end-of-life recycling as part of ABB EcoSolutions program, which helps minimize downtime and total cost of ownership.