S203MT-K50NA

Name: S203MT-K50NA
Brand: ABB
SKU: S203MT-K50NA

"ABB S203MT-K50NA: A reliable 50A miniature circuit breaker with IP20 protection, 10kA short-circuit capacity, and 20000 mechanical endurance cycles. Perfect for robust electrical systems."

Product ModelS203MT-K50NA

Material Number2CDS273446R0577

Product ID79083

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Feature1. Reliable Protection \"The ABB S203MT-K50NA provides reliable 50A protection, ensuring your electrical system operates safely and efficiently.\"\",\"2. Robust Construction \"Built with robust materials, this circuit breaker offers a long-lasting performance in various environmental conditions.\"\",\"3. High Short-Circuit Capacity \"With a short-circuit capacity of 10kA, the S203MT-K50NA can handle high electrical surges, ensuring your system remains secure.\"\",\"4. Mechanical Endurance \"Designed to withstand 20000 mechanical endurance cycles, this circuit breaker maintains its performance over time.\"\",\"5. Compliance with Standards \"Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards, the S203MT-K50NA ensures your system meets all regulatory requirements.\"

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235

Tripping Characteristic

Rated Voltage (Ur)

440 V

Rated Operational Voltage

acc. to IEC 60898-1 440 V acc. to IEC 60947-2 230 V

Operational Voltage

Maximum (Incl. Tolerance) 253 V AC Maximum (Incl. Tolerance) 66 V DC Minimum 12 V AC Minimum 12 V DC

Rated Insulation Voltage (Ui)