S203-K0.5NA

Name: S203-K0.5NA
Brand: ABB
SKU: S203-K0.5NA

"ABB's S203-K0.5NA miniature circuit breaker provides reliable overload and short circuit protection. Suitable for residential, commercial, and industrial use, it meets UL1077 standards. Ideal for 0.5A, 3P+N applications."

Product ModelS203-K0.5NA

Material Number2CDS253103R0157

Product ID79702

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable Protection\"The S203-K0.5NA offers dual tripping mechanisms for both overload and short circuit protection, ensuring your electrical system is safe and reliable.\"
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2. Versatile Applications\"Designed for various applications, including residential, commercial, and industrial settings, this MCB is versatile and adaptable to different electrical needs.\"
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3. Compliance with Standards\"Meets UL1077 standards, ensuring compliance with safety regulations and providing peace of mind for your electrical installations.\"
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4. Compact Design\"The compact design of the S203-K0.5NA saves space while maintaining high performance, making it ideal for modern electrical systems.\"
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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