S203MT-K5NA

Name: S203MT-K5NA
Brand: ABB
SKU: S203MT-K5NA

The S203MT-K5NA miniature circuit breaker from ABB provides reliable protection with a 10kA breaking capacity, 5A current rating, and 3P configuration. Ideal for high-reliability applications.

Product ModelS203MT-K5NA

Material Number2CDS273446R0357

Product ID80375

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Breaking CapacityThe S203MT-K5NA boasts a robust 10kA breaking capacity, ensuring it can handle high electrical surges and faults effectively.
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2. Compact DesignIts miniature size makes it perfect for applications where space is limited, such as in industrial control panels or residential electrical systems.
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3. Reliable ProtectionWith a 5A current rating and 3P configuration, this circuit breaker offers reliable protection against overcurrents and short circuits.
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4. High ReliabilityDesigned with high-reliability in mind, the S203MT-K5NA is ideal for critical applications where downtime cannot be tolerated.
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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, 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)