2CDS383001R0404 ABB S303P-C40 Miniature Circuit Breaker – 3P – C – 40 A
ABB S303P-Z10 miniature circuit breaker featuring a 3-pole design, 10 A current rating and Type Z tripping characteristic for industrial overload and short-circuit protection.
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Why Choose the ABB S303P-Z10 Miniature Circuit Breaker?
The ABB S303P-Z10 (2CDS383001R0404) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the proven ABB S300P series, it delivers exceptional reliability, high breaking capacity and long service life for demanding applications.
Manufactured to recognised IEC and UL standards, the S303P-Z10 combines robust construction with a compact DIN rail design for straightforward installation in distribution boards, switchgear and industrial control panels. Its Type Z tripping characteristic provides rapid operation for the protection of sensitive electrical and electronic equipment.
With a 10 A current rating, a Type Z tripping characteristic and an ultimate short-circuit breaking capacity of up to 100 kA, the S303P-Z10 is ideal for protecting instrumentation, PLCs, electronic control systems and other sensitive circuits where fast fault clearance is essential.
10 A rated current with Type Z tripping characteristics.
Rapid protection for sensitive electrical and electronic equipment.
100 kA ultimate breaking capacity for demanding installations.
DIN rail mounting for quick installation.
Manufactured to international IEC and UL standards.
Key Features
ABB S300P series.
3-pole configuration.
10 A rated current.
Type Z tripping characteristic.
415 V AC rated operating voltage.
25 kA rated breaking capacity.
100 kA ultimate short-circuit breaking capacity.
Red ON / green OFF contact position indicator.
Failsafe bi-directional screw terminals.
DIN rail mounting with top or bottom supply connection.
Reliable Protection for Sensitive Industrial Circuits
The ABB S303P-Z10 miniature circuit breaker automatically disconnects electrical circuits during overload and short-circuit conditions, helping to protect sensitive equipment, minimise downtime and improve the overall safety and reliability of industrial electrical systems.
Its Type Z tripping characteristic provides rapid disconnection at relatively low fault currents, making it particularly suitable for electronic equipment, instrumentation, semiconductor devices and automation control circuits.
Typical Applications
Industrial automation systems.
PLC and control panels.
Instrumentation circuits.
Sensitive electronic equipment.
Machine building and OEM equipment.
Industrial power distribution systems.
Technical Specifications
Current
40 A
Phase
Three Phase
Manufacturer
ABB
Series
S300P
Model
S303P-Z10
Product ID
2CDS383001R0404
Product type
Miniature circuit breaker (MCB)
Current rating
10 A
Number of poles
3
Tripping characteristic
Type Z
Rated operating voltage
415 V AC
Rated breaking capacity
25 kA
Ultimate short-circuit breaking capacity (Icu)
100 kA at 400 to 440 V AC
Frequency
50 / 60 Hz
Protection rating
IP20
Mounting type
DIN rail
Dimensions (H × W × D)
approx. 88 × 52.5 × 69 mm
Weight
approx. 0.37 kg
HS Code
85362010
Country of Manufacture
Germany
Frequently Asked Questions
What is the ABB S303P-Z10 used for?
The S303P-Z10 provides reliable overload and short-circuit protection for sensitive industrial electrical and electronic circuits.
What is the current rating of this circuit breaker?
This miniature circuit breaker has a 10 A rated current.
What does the Type Z tripping characteristic mean?
Type Z circuit breakers trip rapidly at relatively low fault currents, making them suitable for protecting sensitive electronic and control equipment.
How is the breaker installed?
The ABB S303P-Z10 is designed for installation on a standard DIN rail inside electrical control panels and distribution boards.
Where is this miniature circuit breaker typically installed?
It is commonly installed in industrial automation systems, electronic control panels, instrumentation circuits and electrical distribution equipment.
Trusted by Industrial Professionals Worldwide
ABB S300P miniature circuit breakers are trusted by electrical engineers, OEM manufacturers and panel builders for delivering dependable circuit protection, high breaking performance and long-term reliability in demanding industrial applications.
Current
40 A
Phase
Three Phase
Manufacturer
ABB
Series
S300P
Model
S303P-Z10
Product ID
2CDS383001R0404
Product type
Miniature circuit breaker (MCB)
Current rating
10 A
Number of poles
3
Tripping characteristic
Type Z
Rated operating voltage
415 V AC
Rated breaking capacity
25 kA
Ultimate short-circuit breaking capacity (Icu)
100 kA at 400 to 440 V AC
Frequency
50 / 60 Hz
Protection rating
IP20
Mounting type
DIN rail
Dimensions (H × W × D)
approx. 88 × 52.5 × 69 mm
Weight
approx. 0.37 kg
HS Code
85362010
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
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Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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Common questions about our products and support
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...