Product Description: ABB S201-K50NA Miniature Circuit Breaker, 50A, 1P+N, K-Type, DIN Rail Mount, Thermal Magnetic Trip Curve K, UL 1077, CSA 22.2 No. 235.
Product ModelS201M-K50NA
Material Number2CDS271103R0577
Product ID69194
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Reliable ProtectionThe S201-K50NA offers dual tripping mechanisms for both delayed thermal and electromechanical protection, ensuring comprehensive safety against short circuits and overloads.
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2. DIN Rail MountingDesigned for easy installation on DIN rails, this MCB saves space and enhances flexibility in electrical panel configurations.
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3. High PerformanceWith an interrupt rating of 6 kA at 230/400 V AC, it provides robust short-circuit protection, making it suitable for a wide range of applications.
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4. Compliance and CertificationsMeets IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards, ensuring compliance with international safety regulations.
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Standards
CSA 22.2 No. 235 IEC/EN 60947-2 UL 1077
Tripping Characteristic
K
Rated Operational Voltage
acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 230 V AC
Operational Voltage
Maximum (Incl. Tolerance) 253 V AC Minimum 12 V AC Minimum 12 V DC
Rated Insulation Voltage (Ui)
acc. to IEC/EN 60664-1 440 V
Rated Impulse Withstand Voltage (Uimp)
5. Space-Saving DesignThe compact design allows for efficient use of space in electrical panels, making it ideal for both new installations and retrofits.
4 kV at 2000 m 5 kV at Sea Level 6.2 kV
Dielectric Test Voltage
50/60 Hz-1 min: 2 kV
Input Voltage Type
AC
Rated Current (In)
50 A
Rated Short-Circuit Capacity
(AC) 10 kA (DC) 10 kA (230 V AC) 10 kA (230 V) 10 kA (400 V) 10 kA
