S203-K20NA

Name: S203-K20NA
Brand: ABB
SKU: S203-K20NA

"ABB S203-K20NA: A reliable miniature circuit breaker with fast breaking time (2.5-3.5 msec) and unique bus connection system. Suitable for industrial communication and control applications."

Product ModelS203-K20NA

Material Number2CDS253103R0487

Product ID78882

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Current Limiting\"The ABB S203-K20NA features current limiting, ensuring safe and efficient operation in industrial settings.\"
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2. Fast Breaking Time\"With a fast breaking time of 2.5-3.5 msec, the S203-K20NA provides quick and reliable protection against electrical faults.\"
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3. Unique Bus Connection System\"The unique bus connection system of the S203-K20NA offers easy and secure connections, enhancing overall system reliability.\"
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4. Wide Range of Accessories\"Available with a wide range of accessories, the S203-K20NA is customizable to meet specific industrial needs.\"
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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

IEC/EN 60898-1 IEC/EN 60947-2 UL 1077

Tripping Characteristic

Rated Operational Voltage

acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 440 V AC

Operational Voltage

Maximum (Incl. Tolerance) 440 V AC

Rated Insulation Voltage (Ui)

acc. to IEC/EN 60664-1 440 V

Rated Impulse Withstand Voltage (Uimp)

4 kV at 2000 m 5 kV at Sea Level 6.2 kV