2CDS381103R0378 ABB S301P-Z6NA Miniature Circuit Breaker – 1+NP – Z – 6 A
ABB 2CDS381103R0378 S301P-Z6NA miniature circuit breaker with a 6 A rating, Type Z tripping characteristic, 1P+N configuration and high short-circuit breaking capacity for sensitive industrial circuits.
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Why Choose the ABB 2CDS381103R0378 S301P-Z6NA Miniature Circuit Breaker?
The ABB 2CDS381103R0378, also identified as the S301P-Z6NA, is a high-performance miniature circuit breaker (MCB) designed to protect sensitive industrial electrical circuits against overloads and short circuits. It forms part of the reliable ABB System pro M Compact S300P series.
Manufactured for demanding industrial installations, this circuit breaker combines a high short-circuit interruption capability with a sensitive Type Z tripping characteristic. Its integrated trip indication supports rapid fault identification, while fail-safe terminals and a dual DIN rail release help simplify installation and maintenance.
With a rated current of 6 A, a 1P+N configuration and a 240 V AC rated voltage, the ABB 2CDS381103R0378 is particularly suitable for electronic equipment, control circuits, instrumentation and automation systems that require rapid disconnection at relatively low fault-current levels.
Key Advantages
High-performance miniature circuit breaker for sensitive industrial circuits.
Type Z tripping characteristic provides rapid response to fault currents.
6 A current rating suitable for low-current control and electronic equipment.
1P+N configuration switches the phase and neutral conductors together.
Compatible with ABB System pro M Compact accessories.
Key Features
ABB System pro M Compact S300P series.
S301P-Z6NA extended product type.
6 A rated current.
Type Z tripping characteristic.
1 protected pole plus neutral.
240 V AC rated operating voltage.
High short-circuit interruption capability for industrial applications.
DIN rail mounting with fail-safe screw terminals.
Sensitive Circuit Protection for Industrial Automation
Miniature circuit breakers automatically disconnect an electrical supply when an overload or short circuit is detected. A Type Z characteristic provides particularly sensitive magnetic operation, making this breaker suitable for electronic devices and control equipment that may be damaged by comparatively low fault currents.
The ABB S300P series is engineered for industrial installations requiring dependable protection, high breaking capacity and compliance with recognised international standards. Its modular design enables straightforward integration into distribution boards, machinery panels and automation enclosures.
Typical Applications
Industrial control panels and switchboards.
PLC and automation control circuits.
Sensitive electronic equipment.
Instrumentation and measurement systems.
Power supplies and semiconductor loads.
OEM machinery and production equipment.
Technical Specifications
Current
6 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M Compact S300P
Model
2CDS381103R0378
Extended product type
S301P-Z6NA
Product type
Miniature circuit breaker (MCB)
Rated current
6 A
Tripping characteristic
Type Z
Number of poles
1P+N
Number of protected poles
1
Rated voltage
240 V AC
Rated insulation voltage
500 V
Rated impulse withstand voltage
6 kV
Breaking capacity
up to 100 kA at 230 V AC according to IEC 60947-2
Mounting type
DIN rail
Terminal type
Screw terminals
Protection rating
IP20; up to IP40 when installed in a suitable enclosure
Width
35 mm
Height
88 mm
Depth
69 mm
HS Code
85362010
Country of Manufacture
Germany
Frequently Asked Questions
What is the ABB 2CDS381103R0378 used for?
It is used to protect sensitive industrial electrical circuits, electronic equipment and automation systems against overloads and short circuits.
What is the rated current of this circuit breaker?
The ABB 2CDS381103R0378 has a rated current of 6 A.
What does the Type Z tripping characteristic mean?
A Type Z characteristic provides rapid magnetic tripping at relatively low fault-current levels, making it suitable for sensitive electronic and control equipment.
What does the 1P+N configuration provide?
The 1P+N configuration includes one protected phase pole and a switched neutral pole, allowing both conductors to be disconnected together.
What breaking capacity does this MCB provide?
The breaker provides a short-circuit breaking capacity of up to 100 kA at 230 V AC when assessed according to IEC 60947-2.
Trusted for High-Performance Circuit Protection
ABB System pro M Compact S300P miniature circuit breakers are trusted by electrical engineers, panel builders and automation specialists for dependable protection, high fault interruption capability and reliable performance in demanding industrial installations.
Current
6 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M Compact S300P
Model
2CDS381103R0378
Extended product type
S301P-Z6NA
Product type
Miniature circuit breaker (MCB)
Rated current
6 A
Tripping characteristic
Type Z
Number of poles
1P+N
Number of protected poles
1
Rated voltage
240 V AC
Rated insulation voltage
500 V
Rated impulse withstand voltage
6 kV
Breaking capacity
up to 100 kA at 230 V AC according to IEC 60947-2
Mounting type
DIN rail
Terminal type
Screw terminals
Protection rating
IP20; up to IP40 when installed in a suitable enclosure
Width
35 mm
Height
88 mm
Depth
69 mm
HS Code
85362010
Country of Manufacture
Germany
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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.
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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...