"ABB S203-Z3NA: Reliable miniature circuit breaker with delayed thermal and electromechanical tripping mechanisms. Suitable for residential, commercial, and industrial use."
Product ModelS203-Z3NA
Material Number2CDS253103R0318
Product ID80184
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. Advanced Tripping Mechanisms\"The ABB S203-Z3NA features two advanced tripping mechanisms: delayed thermal for overload protection and electromechanical for short-circuit protection, ensuring your circuit is always safe and reliable.\"
2
2. Comprehensive Protection\"Designed to protect your circuit from both overloads and short circuits, the S203-Z3NA provides comprehensive protection for residential, commercial, and industrial applications.\"
3
3. High Breaking Capacity\"With a breaking capacity of up to 10 kA at 230/400 V AC, the S203-Z3NA is capable of handling high current surges, making it an ideal choice for demanding electrical systems.\"
4
4. Versatile Configurations\"Available in various configurations (1P, 1P+N, 2P, 3P, 3P+N, 4P) and characteristics (B, C, D, K, Z), the S203-Z3NA can be tailored to fit a wide range of electrical needs.\"
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
5
5. Compliance with International Standards\"Compliant with IEC/EN 60898-1 and IEC/EN 60947-2, the ABB S203-Z3NA meets international standards for safety and reliability, ensuring it can be used in various global applications.\"
