S203-K0.5

Name: S203-K0.5
Brand: ABB
SKU: S203-K0.5

The ABB S203-K0.5 is a 3-pole, current-limiting circuit breaker designed for DIN rail mounting. It features delayed thermal tripping mechanisms and is part of the System pro M compact series, ensuring reliable and efficient protection in various applications.

Product ModelS203-K0.5

Material Number2CDS253001R0157

Product ID80495

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. Reliable ProtectionThe ABB S203-K0.5 offers reliable protection with its current-limiting design, ensuring that electrical circuits are safeguarded against overcurrent conditions.
2
2. Delayed Thermal TrippingEquipped with delayed thermal tripping mechanisms, this circuit breaker provides a safe and controlled shutdown in case of an overload, preventing damage to the circuit.
3
3. Compact DesignPart of the System pro M compact series, the S203-K0.5 is designed for DIN rail mounting, making it a space-efficient solution for various applications.
4
4. Precise OperationWith its precise current rating of 0.5 A, this circuit breaker ensures that electrical systems operate efficiently and safely, minimizing the risk of electrical faults.

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

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