ABB S203 K6A S2C-H6R

ABB S283NA-K6A Miniature Circuit Breaker

Description

The ABB S283NA-K6A is a high-quality miniature circuit breaker (MCB) from the System pro M series. This 3-pole plus neutral device is rated for 6 Amperes and features a K-curve tripping characteristic, making it perfectly suited for protecting circuits with high inrush currents, such as motors and transformers. Manufactured in Germany, this MCB ensures reliable performance and safety for demanding industrial applications. Although this series is obsolete, it remains a vital component for maintaining existing installations. Order now from spareparts2day for expert support and fast delivery.

Specifications

• Manufacturer: ABB
• Type: S283NA-K6A
• Product Series: System pro M S280
• Poles: 3P+N (3-pole + switched neutral)
• Rated Current (In): 6 A
• Tripping Characteristic: K-Curve
• Rated Voltage (Ue): 230 / 400V AC
• Rated Breaking Capacity (Icu) at 400V: 10 kA
• Standard: IEC/EN 60947-2

Label Info

Note: The rear label indicates model S2C-H6R (2CDS 200 912 R0001), which is an ABB auxiliary contact. The primary product identification is S283NA-K6A as printed on the front of the unit.

Application

This MCB is ideal for overcurrent and short-circuit protection in industrial control panels, motor control circuits, and any application requiring robust protection against high inrush currents.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned component, you are contributing to a circular economy and helping to avoid approximately 20 kg of CO2 emissions associated with the production of a new unit.

Availability

This is an obsolete item but available from stock. Ideal for repairs and maintenance of existing systems. Worldwide shipping is available.

FAQ

What is the significance of the ‘K’ tripping curve on the S283NA-K6A?

The ‘K’ tripping curve is designed for circuits with high inrush currents, such as motors, transformers, and capacitor banks. It has a high magnetic trip point (typically 8 to 12 times the rated current) to prevent nuisance tripping on startup, while still providing short-circuit protection.

Is this S283NA-K6A breaker suitable for use in North American (UL/CSA) applications?

While the breaker shows a UL and CSA mark with a 277/480 V.a.c. rating, it is primarily designed and rated according to IEC 947-2 standards. You should always verify the specific application requirements and local electrical codes to ensure full compliance for use in North America.

The label on the back shows ‘S2C-H6R’. What does this mean?

The S2C-H6R is an ABB part number for a bottom-fitting auxiliary contact block. It’s possible this specific breaker has this accessory factory-fitted or that the label is from an associated component. The primary device identification, however, is the S283NA-K6A printed on the front.

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Last Update: Friday, March 13, 2026