"ABB's System pro M compact S200 miniature circuit breaker, S203-Z4NA, offers current limiting and delayed thermal tripping mechanisms for reliable electrical protection."
Product ModelS203-Z4NA
Material Number2CDS253103R0338
Product ID80396
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Current Limiting MechanismThe S203-Z4NA features a current limiting mechanism that helps in reducing the impact of electrical surges, ensuring the safety of your electrical system.
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2. Delayed Thermal TrippingEquipped with a delayed thermal tripping mechanism, this circuit breaker provides a safe and efficient shutdown in case of overheating, preventing potential electrical hazards.
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3. Compact DesignThe compact design of the S203-Z4NA makes it ideal for use in a variety of applications where space is limited, including residential and commercial settings.
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4. Reliable ProtectionDesigned with reliability in mind, the S203-Z4NA offers consistent performance and protection against electrical faults, ensuring the longevity of your electrical system.
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
Z
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
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5. Easy InstallationThe S203-Z4NA is designed for easy installation, making it a convenient choice for both professional electricians and DIY enthusiasts. Its compact size and straightforward installation process save time and effort.
