S203M-K25NA

Name: S203M-K25NA
Brand: ABB
SKU: S203M-K25NA

The ABB S203M-K25 is a 3-pole, 25 A miniature circuit breaker offering current limiting and dual tripping mechanisms for overload and short circuit protection. Ideal for residential, commercial, and industrial use.

Product ModelS203M-K25NA

Material Number2CDS273103R0517

Product ID78848

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable ProtectionThe S203M-K25 features a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection, ensuring reliable operation in various environments.
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2. Comprehensive ComplianceAll MCBs of the S200M product range comply with IEC/EN 60898-1 and IEC/EN 60947-2, making them suitable for residential, commercial, and industrial applications.
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3. High Breaking CapacityWith a rated short-circuit capacity of up to 10 kA at 230/400 V AC, the S203M-K25 provides robust protection against electrical faults.
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4. Space-Saving DesignThe bottom-fitting auxiliary contact can be mounted on the S200M to save 50% space, making it ideal for compact installations.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Standards

CSA 22.2 No. 235 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 Minimum 12 V AC Minimum 12 V DC

Rated Insulation Voltage (Ui)

acc. to IEC/EN 60664-1 440 V

Rated Impulse Withstand Voltage (Uimp)