S203-K8NA

Name: S203-K8NA
Brand: ABB
SKU: S203-K8NA

The ABB S203-K8NA is a high-quality miniature circuit breaker, perfect for 8A, 3P+N applications. It ensures safety and efficiency in your electrical systems with its reliable K-trip mechanism.

Product ModelS203-K8NA

Material Number2CDS253103R0407

Product ID78708

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable K-Trip MechanismThe ABB S203-K8NA features a reliable K-trip mechanism that ensures accurate and consistent tripping, providing a high level of safety in your electrical system.
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2. Compact DesignWith its compact design, the S203-K8NA is easy to install and fits seamlessly into your existing electrical setup, making it a versatile choice for various applications.
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3. UL1077 CertificationThe product is certified to UL1077 standards, ensuring compliance with industry safety regulations and providing peace of mind for users.
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4. Efficient OperationDesigned for 8A, 3P+N applications, the S203-K8NA operates efficiently, handling the demands of your electrical system with ease and reliability.

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