"ABB S204-K40 Miniature Circuit Breaker - 4P, 40A, K-Curve. Compact design with delayed thermal and electromechanical tripping mechanisms for overload and short circuit protection."
Product ModelS204-K40
Material Number2CDS254001R0557
Product ID78423
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Compact Design\"The ABB S204-K40 is designed to be compact, making it ideal for space-saving installations. Its small footprint ensures efficient use of space in residential, commercial, and industrial settings.\"
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2. Dual Tripping Mechanisms\"Equipped with both delayed thermal and electromechanical tripping mechanisms, the S204-K40 provides comprehensive protection against overloads and short circuits. This dual protection ensures the safety of your electrical system.\"
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3. High Breaking Capacity\"With a high breaking capacity of up to 10 kA at 230/400 V AC, the S204-K40 can handle significant short-circuit currents, making it reliable for a wide range of applications.\"
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4. Compliance with International Standards\"Compliant with IEC/EN 60947-2 and UL 1077 standards, the ABB S204-K40 ensures that your electrical system meets the highest safety and performance standards. It is suitable for residential, commercial, and industrial applications.\"
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
K
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 Installation\"The S204-K40 features a simple and secure mounting system, making it easy to install on DIN rail. Its double clamp terminals ensure a reliable connection, reducing the risk of electrical faults.\"
