The ABB S202UDC-K20 is a 2-pole DC circuit breaker with a K curve rating of 20A at 125VDC. It meets UL 489 standards, ensuring reliable protection in DC applications.
Product ModelS202UDC-K20
Material Number2CDS272517R0487
Product ID80529
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable Protection for DC ApplicationsThe ABB S202UDC-K20 is specifically designed for DC applications, providing reliable protection against overcurrents and short circuits.
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2. Compliance with UL 489 StandardsMeets the stringent requirements of UL 489, ensuring that the circuit breaker operates safely and efficiently in various DC environments.
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3. Compact and Efficient DesignWith its compact dimensions (71 mm L x 35 mm W x 92 mm H), the S202UDC-K20 fits seamlessly into any electrical panel, making it an ideal choice for space-constrained applications.
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4. Easy Installation and MaintenanceFeatures screw terminals for easy installation and handle for manual operation, making maintenance and troubleshooting straightforward.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
UL 489
Tripping Characteristic
K
Rated Operational Voltage
125 V DC acc. to IEC 60898-1 250 V acc. to IEC 60947-2 125 V
Rated Insulation Voltage (Ui)
440 V
Rated Impulse Withstand Voltage (Uimp)
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Primary Rated Impulse Withstand Voltage
4 kV
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5. High-Quality ConstructionBuilt with high-quality materials and designed to withstand the rigors of continuous operation, ensuring a long lifespan and consistent performance.
