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ABB S203-C20 Miniature Circuit Breaker for electrical system protection

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ABB S203-C20

by ABB

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OverviewThe ABB S203-C20 Miniature Circuit Breaker (MCB) provides an essential safeguard for diverse electrical installations, protecting against the damaging impacts of overcurrents and short circuits. Designed by ABB, a leader in electrical solutions, this MCB delivers reliable protection within a remarkably compact form factor, making it particularly suitable for applications where space is limited. Its impressive breaking capacity ensures rapid and secure disconnection during fault conditions, enhancing the safety and lifespan of your electrical infrastructure. From residential power grids to complex industrial machinery, the S203-C20 consistently offers dependable performance, providing confidence for both installers and end-users, solidifying its role as a crucial element in contemporary electrical setups.Key Features Model: ABB S203-C20 Primary Function: Acts as a miniature circuit breaker, offering vital protection against electrical overloads and dangerous short circuits. Compact & Space-Saving Design: Expertly engineered for effortless integration into various electrical configurations, especially advantageous for installations with restricted space. Reliable & Responsive Operation: Delivers quick and consistent response to electrical irregularities, reducing potential damage and operational interruptions. High Breaking Capacity: Boasts a substantial 6kA breaking capacity, ensuring efficient and safe current interruption during critical overload or short-circuit events. Integrated Safety Mechanisms: Equipped with clear tripping indicators for immediate visual feedback, enabling real-time monitoring and swift identification of fault conditions. Technical Specifications Rated Voltage: 230V AC Rated Current: 20A Breaking Capacity: 6kA Number of Poles: 1 Frequency: 50/60 Hz Mounting Type: DIN rail Operating Temperature: -5°C to 40°C Dimensions (L x W x H): 80 mm x 45 mm x 75 mm Weight: 120g ApplicationsThe versatility and consistent performance of the ABB S203-C20 MCB make it appropriate for a broad array of applications, offering crucial protection across numerous environments: Residential Electrical Systems: Supplies vital overload and short-circuit protection for household wiring, appliances, and lighting circuits, boosting domestic safety. Commercial Installations: Perfect for securing electrical systems in office buildings, retail spaces, and small businesses, ensuring continuous operation and preventing expensive downtime. Industrial Equipment Protection: Precisely engineered to safeguard low-voltage control circuits within machinery, motors, and other industrial apparatus, contributing to operational efficiency and equipment longevity. Distribution Panels & Switchboards: An ideal component for integration into electrical distribution panels and switchboards, providing robust circuit protection and effective power management. Why ChooseSelecting the ABB S203-C20 Miniature Circuit Breaker signifies an investment in a superior standard of electrical protection, supported by ABB's reputation for pioneering solutions and quality. Its compact design offers a notable benefit, facilitating high-density installations without sacrificing performance or safety – a critical consideration in contemporary electrical enclosures. The 20A rated current and sturdy 6kA breaking capacity are ideally suited for demanding applications, guaranteeing that circuits remain protected against substantial fault currents. Beyond its technical merits, the S203-C20 is crafted for extended durability and straightforward DIN rail installation, ensuring a dependable and simple setup. Its capacity for rapid fault detection, along with clear tripping indicators, minimizes downtime and streamlines maintenance, making it a cost-effective and exceptionally reliable choice for a multitude of electrical protection requirements. This model embodies a fusion of advanced engineering and practical design, making it a wise selection for enhancing the safety and stability of electrical systems.Order NowEnsure the superior protection of your electrical systems. Order the ABB S203-C20 Miniature Circuit Breaker today and benefit from robust performance and ABB's renowned reliability.FAQWhat is the primary function of the ABB S203-C20 MCB?The main purpose of the ABB S203-C20 MCB is to provide essential electrical protection against overloads and short circuits within various installations.Is this circuit breaker suitable for residential use?Yes, the ABB S203-C20 is well-suited for residential electrical systems, offering protection for household wiring, appliances, and lighting circuits.What is the breaking capacity of this model?The ABB S203-C20 features a robust 6kA breaking capacity, ensuring effective current interruption during fault conditions.Can this MCB be used in industrial environments?Absolutely, it is engineered to safeguard low-voltage control circuits in industrial machinery, motors, and other equipment, enhancing operational efficiency and equipment lifespan.How does its compact design benefit installations?The compact design of the ABB S203-C20 allows for seamless integration into various electrical setups, particularly advantageous for installations with limited space, enabling high-density configurations without compromising safety or performance.

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$163.00
12 in stock

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PRODUCT DETAILS

ABB S203-C20

Overview

This is a genuine ABB component from the Low Voltage Products family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine ABB catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader ABB automation ecosystem
  • Engineered to integrate inside Low Voltage Products installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your ABB equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same ABB catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation ABB platform with documented conversion notes for the Low Voltage Products family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Rated Voltage: 230V AC
  • Rated Current: 20A
  • Breaking Capacity: 6kA
  • Number of Poles: 1
  • Frequency: 50/60 Hz
  • Mounting Type: DIN rail
  • Operating Temperature: -5°C to 40°C
  • Dimensions (L x W x H): 80 mm x 45 mm x 75 mm
  • Weight: 120g

Applications

The versatility and consistent performance of the ABB S203-C20 MCB make it appropriate for a broad array of applications, offering crucial protection across numerous environments:

  • Residential Electrical Systems: Supplies vital overload and short-circuit protection for household wiring, appliances, and lighting circuits, boosting domestic safety.
  • Commercial Installations: Perfect for securing electrical systems in office buildings, retail spaces, and small businesses, ensuring continuous operation and preventing expensive downtime.
  • Industrial Equipment Protection: Precisely engineered to safeguard low-voltage control circuits within machinery, motors, and other industrial apparatus, contributing to operational efficiency and equipment longevity.
  • Distribution Panels & Switchboards: An ideal component for integration into electrical distribution panels and switchboards, providing robust circuit protection and effective power management.

Why Choose the S203-C20?

Selecting the ABB S203-C20 Miniature Circuit Breaker signifies an investment in a superior standard of electrical protection, supported by ABB's reputation for pioneering solutions and quality. Its compact design offers a notable benefit, facilitating high-density installations without sacrificing performance or safety – a critical consideration in contemporary electrical enclosures. The 20A rated current and sturdy 6kA breaking capacity are ideally suited for demanding applications, guaranteeing that circuits remain protected against substantial fault currents. Beyond its technical merits, the S203-C20 is crafted for extended durability and straightforward DIN rail installation, ensuring a dependable and simple setup. Its capacity for rapid fault detection, along with clear tripping indicators, minimizes downtime and streamlines maintenance, making it a cost-effective and exceptionally reliable choice for a multitude of electrical protection requirements. This model embodies a fusion of advanced engineering and practical design, making it a wise selection for enhancing the safety and stability of electrical systems.

Availability & Shipping

  • In stock: S203-C20 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every S203-C20 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — ABB

The main purpose of the ABB S203-C20 MCB is to provide essential electrical protection against overloads and short circuits within various installations.

Machine down? We ship parts the same day.

New, surplus, and refurbished ABB inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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