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ABB S203-C40 Miniature Circuit Breaker (MCB)

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ABB S203-C40

by ABB

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OverviewThe ABB S203-C40 Miniature Circuit Breaker (MCB) is meticulously engineered to provide exceptional safeguarding for your electrical infrastructure, defending against harmful overloads and short circuits. This vital component, suitable for both residential settings and demanding industrial or commercial environments, masterfully blends high breaking capacity with an efficient, compact form. Its durable construction ensures outstanding dependability and extended operational life, making it an essential asset for protecting valuable electrical setups. The S203-C40 effortlessly integrates into diverse configurations, offering peace of mind through its precise and swift fault detection abilities. Its intuitive design facilitates straightforward installation, guaranteeing enhanced protection across a wide array of electrical uses.Key Features Model: ABB S203-C40 Function: Advanced miniature circuit breaker providing comprehensive protection against overload and short-circuit conditions. Rated Current: 40A, accommodating a broad spectrum of electrical loads. Breaking Capacity: An impressive 10kA at 400V AC, ensuring effective fault interruption. Compact Design: Optimized dimensions for efficient space utilization in electrical panels and distribution boards. Thermal-Magnetic Protection: A dual protection system addressing both sustained overcurrents (thermal) and sudden, high currents (magnetic). Reliable Performance: Delivers rapid and decisive protection for electrical circuits, reducing downtime and preventing potential damage. Technical Specifications Rated Voltage: 400V AC Rated Current: 40A Breaking Capacity: 10kA Frequency: 50/60 Hz, adhering to international standards. Operating Temperature: -25°C to 50°C, ensuring consistent operation in various climates. Dimensions (L x W x H): 82 mm x 35 mm x 75 mm, designed for effortless integration. Weight: 0.4 kg, lightweight yet robust. Protection Class: IP20, offering defense against solid objects. Applications Residential Electrical Systems: Crucial for protecting household circuits, consumer units, and smaller installations. Industrial Control Panels: Offers critical overload protection for industrial machinery, motor control circuits, and automation infrastructure. Commercial Electrical Installations: Perfect for safeguarding distribution boards, lighting systems, and power outlets in commercial buildings and offices. Lighting and Motor Circuits: Specifically engineered to protect sensitive lighting circuits and various motor types from damaging electrical faults, ensuring continuous operation. Why Choose This Model?The ABB S203-C40 stands out as an excellent choice for several compelling reasons. Its high breaking capacity of 10kA provides robust protection, surpassing the requirements of many standard installations and offering an additional layer of safety. The thermal-magnetic trip unit ensures comprehensive protection against both prolonged overloads and sudden short circuits, reacting quickly to safeguard your valuable equipment and wiring. Its compact form factor is a significant advantage, allowing for efficient use of space in crowded electrical enclosures, simplifying installation and maintenance. Furthermore, the ABB brand is recognized for quality and reliability in the electrical industry, ensuring that with the S203-C40, you are investing in a product crafted for consistent and dependable performance for years to come. This MCB not only enhances safety by preventing electrical hazards but also contributes to the longevity and optimal performance of your entire electrical infrastructure, making it a wise and economical decision for any discerning professional or homeowner.Order NowImprove the safety and dependability of your electrical systems today. Acquire your ABB S203-C40 Miniature Circuit Breaker and experience industry-leading protection. Add to cart now to ensure robust safeguarding against electrical faults.

🇺🇸 Ships from our Florida warehouse
1-Year PALM Parts Warranty
CONDITION
$86.00
19 in stock

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PRODUCT DETAILS

ABB S203-C40

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: 400V AC
  • Rated Current: 40A
  • Breaking Capacity: 10kA
  • Frequency: 50/60 Hz, adhering to international standards.
  • Operating Temperature: -25°C to 50°C, ensuring consistent operation in various climates.
  • Dimensions (L x W x H): 82 mm x 35 mm x 75 mm, designed for effortless integration.
  • Weight: 0.4 kg, lightweight yet robust.
  • Protection Class: IP20, offering defense against solid objects.

Applications

  • Residential Electrical Systems: Crucial for protecting household circuits, consumer units, and smaller installations.
  • Industrial Control Panels: Offers critical overload protection for industrial machinery, motor control circuits, and automation infrastructure.
  • Commercial Electrical Installations: Perfect for safeguarding distribution boards, lighting systems, and power outlets in commercial buildings and offices.
  • Lighting and Motor Circuits: Specifically engineered to protect sensitive lighting circuits and various motor types from damaging electrical faults, ensuring continuous operation.

Why Choose the S203-C40?

The ABB S203-C40 stands out as an excellent choice for several compelling reasons. Its high breaking capacity of 10kA provides robust protection, surpassing the requirements of many standard installations and offering an additional layer of safety. The thermal-magnetic trip unit ensures comprehensive protection against both prolonged overloads and sudden short circuits, reacting quickly to safeguard your valuable equipment and wiring. Its compact form factor is a significant advantage, allowing for efficient use of space in crowded electrical enclosures, simplifying installation and maintenance. Furthermore, the ABB brand is recognized for quality and reliability in the electrical industry, ensuring that with the S203-C40, you are investing in a product crafted for consistent and dependable performance for years to come. This MCB not only enhances safety by preventing electrical hazards but also contributes to the longevity and optimal performance of your entire electrical infrastructure, making it a wise and economical decision for any discerning professional or homeowner.

Availability & Shipping

  • In stock: S203-C40 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-C40 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — ABB

Yes. Every S203-C40 we ship is sourced through trusted industrial channels and inspected before dispatch. PALM Parts Solution operates as an independent supplier, not an authorized distributor.

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.

CUSTOMER REVIEWS

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Independent Supplier Notice

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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PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

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